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https://demo-uni.aecdaily.com/

Tested using Chrome 94.0.4606.54 (runtime settings).

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SummaryWaterfall MetricsVideoFilmstrip CoachPageXrayCPU Third partyScreenshotsaxeSustainable Web

Summary

MetricValue
Performance score57
Total page size3.0 MB
Requests77
TTFB567 ms
Fully Loaded4.182 s
First Visual Change3.466 s
FCP3.292 s
LCP4.095 s
CLS0.1020987243366307
Total Blocking Time334 ms
Max Potential FID159 ms
CPU long tasks10
Speed Index3.827 s
Visual Complete 85%4.066 s
Visual Complete 99%4.066 s
Last Visual Change4.066 s
Screenshot
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Waterfall

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Video

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| Filmstrip | 

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s
1.8 sCPU Long Task duration 360 ms
2.2 sCPU Long Task duration 193 ms
2.4 sCPU Long Task duration 83 ms
2.5 sCPU Long Task duration 345 ms
2.9 sCPU Long Task duration 398 ms
3.3 sFirst Contentful Paint 3.292 sCPU Long Task duration 108 ms
3.5 sCPU Long Task duration 81 msDOM Content Loaded Time 3.406 sFirst Visual Change 3.466 s
3.6 sCPU Long Task duration 159 ms
3.7 sLayout Shift 0.00044 3.685 s
3.8 sLayout Shift 0.10148 3.795 s
3.9 s
4 sLayout Shift 0.00018 3.907 sCPU Long Task duration 110 ms
4.1 sCPU Long Task duration 126 msLast Visual Change 4.066 sVisual Complete 85% 4.066 sVisual Complete 95% 4.066 sVisual Complete 99% 4.066 sLargest Image 4.066 sLCP <DIV> 4.095 s
| Performance advice | Best practice advice | Privacy advice | Page info | Technologies | 

Coach

The coach helps you find performance problems on your web page using web performance best practice rules. And gives you advice on privacy and best practices.

I am the coach

Coach score

Performance advice (57)

TitleAdviceScore
Avoid slowing down the critical rendering path (fastRender)The page has 23 render blocking CSS requests and 36 blocking JavaScript requests inside of head.0
Description: The critical rendering path is what the browser needs to do to start rendering the page. Every file requested inside of the head element will postpone the rendering of the page, because the browser need to do the request. Avoid loading JavaScript synchronously inside of the head (you should not need JavaScript to render the page), request files from the same domain as the main document (to avoid DNS lookups) and inline CSS or use server push for really fast rendering and a short rendering path.
Offenders:
Inline CSS for faster first render (inlineCss)The page loads 23 CSS requests inside of head, try to inline the CSS for the first render and lazy load the rest.0
Description: In the early days of the Internet, inlining CSS was one of the ugliest things you can do. That has changed if you want your page to start rendering fast for your user. Always inline the critical CSS when you use HTTP/1 and HTTP/2 (avoid doing CSS requests that block rendering) and lazy load and cache the rest of the CSS. It is a little more complicated when using HTTP/2. Does your server support HTTP push? Then maybe that can help. Do you have a lot of users on a slow connection and are serving large chunks of HTML? Then it could be better to use the inline technique, becasue some servers always prioritize HTML content over CSS so the user needs to download the HTML first, before the CSS is downloaded.
Offenders:
Avoid CPU Long Tasks (longTasks)The page has 10 CPU long tasks with the total of 1963 ms. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using. Use Geckoprofiler for Firefox or Chromes tracelog to debug your Long Task.0
Description: Long CPU tasks locks the thread. To the user this is commonly visible as a "locked up" page where the browser is unable to respond to user input; this is a major source of bad user experience on the web today. However the CPU Long Task is depending on the computer/phones actual CPU speed, so you should measure this on the same type of the device that your user is using.
Offenders:
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
  • self
Avoid Frontend single point of failures (spof)The page has 42 requests inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.70
Description: A page can be stopped from loading in the browser if a single JavaScript, CSS, and in some cases a font, couldn't be fetched or is loading really slowly (the white screen of death). That is a scenario you really want to avoid. Never load 3rd-party components synchronously inside of the head tag.
Offenders:
Always load third-party JavaScript asynchronously (thirdPartyAsyncJs)The page has 1 synchronous 3rd-party JavaScript request. Change it to be asynchronous instead.90
Description: Use JavaScript snippets that load the JS files asynchronously in order to speed up the user experience and avoid blocking the initial load.
Offenders:
Avoid extra requests by setting cache headers (cacheHeaders)The page has 8 requests that are missing a cache time. Configure a cache time so the browser doesn't need to download them every time. It will save 30.3 kB the next access.20
Description: The easiest way to make your page fast is to avoid doing requests to the server. Setting a cache header on your server response will tell the browser that it doesn't need to download the asset again during the configured cache time! Always try to set a cache time if the content doesn't change for every request.
Offenders:
Long cache headers is good (cacheHeadersLong)The page has 59 requests that have a shorter cache time than 30 days (but still a cache time).41
Description: Setting a cache header is good. Setting a long cache header (at least 30 days) is even better beacause then it will stay long in the browser cache. But what do you do if that asset change? Rename it and the browser will pick up the new version.
Offenders:
Total CSS size shouldn't be too big (cssSize)The total CSS transfer size is 219.1 kB and uncompressed size is 1.2 MB. That is big and the CSS could most probably be smaller.0
Description: Delivering a massive amount of CSS to the browser is not the best thing you can do, because it means more work for the browser when parsing the CSS against the HTML and that makes the rendering slower. Try to send only the CSS that is used on that page. And make sure to remove CSS rules when they aren't used anymore.
Avoid too many fonts (fewFonts)The page has 5 font requests. Do you really need them? What value does the fonts give the user?50
Description: How many fonts do you need on a page for the user to get the message? Fonts can slow down the rendering of content, try to avoid loading too many of them because worst case it can make the text invisible until they are loaded (FOIT—flash of invisible text), best case they will flicker the text content when they arrive.
Offenders:
Avoid too many requests per domain [HTTP/1] (fewRequestsPerDomain)The page has 1 domain that serves more than 30 requests. static.aecdaily.com got 43 requests. Improve performance by sharding those or move to HTTP/2.90
Description: Browsers have a limit on how many concurrent requests they can do per domain when using HTTP/1. When you hit the limit, the browser will wait before it can download more assets on that domain. So avoid having too many requests per domain.
Offenders:
  • static.aecdaily.com
Total image size shouldn't be too big (imageSize)The page total image size is 874.5 kB. It's really big. Is the page using the right format for the images? Are they compressed as good as they can be? Make them smaller by using https://imageoptim.com/.50
Description: Avoid having too many large images on the page. The images will not affect the first paint of the page, but it will eat bandwidth for the user.
Total JavaScript size shouldn't be too big (javascriptSize)The total JavaScript transfer size is 1.1 MB and the uncompressed size is 3.5 MB. This is totally crazy! There is really room for improvement here. 0
Description: A lot of JavaScript often means you are downloading more than you need. How complex is the page and what can the user do on the page? Do you use multiple JavaScript frameworks?
Avoid using incorrect mime types (mimeTypes)The page has 3 misconfigured mime types. 97
Description: It's not a great idea to let browsers guess content types (content sniffing), in some cases it can actually be a security risk.
Offenders:
Make each CSS response small (optimalCssSize)https://static.aecdaily.com/bootstrap/5.3.0-alpha3/bootstrap-5.3.0-alpha3-dist/css/bootstrap.min.css size is 31.3 kB (31259) and that is bigger than the limit of 14.5 kB. https://static.aecdaily.com/datatables/DataTables-2.0.2/datatables.min.css size is 15.8 kB (15783) and that is bigger than the limit of 14.5 kB. https://static.aecdaily.com/fontawesome_pkgs/fontawesome-pro-6.4.2-web/css/all.min.css size is 100.2 kB (100246) and that is bigger than the limit of 14.5 kB. https://static.aecdaily.com/ag-grid/styles/ag-grid.min.css size is 22.6 kB (22554) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.60
Description: Make CSS responses small to fit into the magic number TCP window size of 14.5 KB. The browser can then download the CSS faster and that will make the page start rendering earlier.
Offenders:
Total page size shouldn't be too big (pageSize)The page total transfer size is 3.1 MB, which is more than the coach limit of 2 MB. That is really big and you need to make it smaller.0
Description: Avoid having pages that have a transfer size over the wire of more than 2 MB (desktop) and 1 MB (mobile) because that is really big and will hurt performance and will make the page expensive for the user if she/he pays for the bandwidth.
Don't use private headers on static content (privateAssets)The page has 1 request with private headers. Make sure that the assets really should be private and only used by one user. Otherwise, make it cacheable for everyone.90
Description: If you set private headers on content, that means that the content are specific for that user. Static content should be able to be cached and used by everyone. Avoid setting the cache header to private.
Offenders:

Best practice advice (73)

TitleAdviceScore
Declare the language code for your document (language)The page is missing a language definition in the HTML tag. Define it with <html lang="YOUR_LANGUAGE_CODE">0
Description: According to the W3C recommendation you should declare the primary language for each Web page with the lang attribute inside the <html> tag https://www.w3.org/International/questions/qa-html-language-declarations#basics.
Cumulative Layout Shift (layoutShift)You have elements that shift. You should manually check the filmstrip or video and check if it will affect the user.90
Description: Cumulative Layout Shift measures the sum total of all individual layout shift scores for every unexpected layout shift that occurs during the entire lifespan of the page. A layout shift occurs any time a visible element changes its position from one rendered frame to the next.
Offenders:
  • UL navbar-nav
  • DIV input-group me-sm-2
  • DIV container-fluid page-container
  • MAIN container-fluid container-xl main-content
  • UL navbar-nav
  • DIV input-group me-sm-2
  • DIV easy-autocomplete-container
Meta description (metaDescription)The meta description is too long. It has 505 characters, the recommended max is 15550
Description: Use a page description to make the page more relevant to search engines.
Avoid use too many third party responses (thirdParty)The page do 12% requests to third party domains (9 requests and 352.4 kB). First party is 68 requests and 2.7 MB. The regex .*aecdaily.* was used to calculate first/third party requests.50
Description: Do not load most of your content from third party URLs.
Avoid Unnecessary Headers (unnecessaryHeaders)There are 1 response that sets a p3p header. There are 11 responses that sets both a max-age and expires header. There are 1 response that sets a pragma no-cache header (that is a request header). There are 77 responses that sets a server header. 10
Description: Do not send headers that you don't need. We look for p3p, cache-control and max-age, pragma, server and x-frame-options headers. Have a look at Andrew Betts - Headers for Hackers talk as a guide https://www.youtube.com/watch?v=k92ZbrY815c or read https://www.fastly.com/blog/headers-we-dont-want.
Offenders:

Privacy advice (68)

TitleAdviceScore
Use a good Content-Security-Policy header to make sure you you avoid Cross Site Scripting (XSS) attacks. (contentSecurityPolicyHeader)Set a Content-Security-Policy header to make sure you are not open for Cross Site Scripting (XSS) attacks. You can start with setting a Content-Security-Policy-Report-Only header, that will only report the violation, not stop the download.0
Description: Content Security Policy is delivered via a HTTP response header, and defines approved sources of content that the browser may load. It can be an effective countermeasure to Cross Site Scripting (XSS) attacks and is also widely supported and usually easily deployed. https://scotthelme.co.uk/content-security-policy-an-introduction/.
Offenders:
Set a permission policy header that opt out your users being tracked in Chrome by FLoC. (disableFLoCHeader)Set a permission policy header that opt out Chrome for tracking what your users do on your site.0
Description: Googles new tracking method is called Federated Learning of Cohorts (FLoC) and it groups you based on your interests and demographics, derived from your browsing history, to enable creepy advertising and other content targeting without third-party cookies. You can avoid that by setting a Permissions-Policy header with the value of interest-cohort=(). See https://www.eff.org/deeplinks/2021/03/googles-floc-terrible-idea.
Offenders:
Avoid using Google reCAPTCHA (googleReCaptcha)You share your user data with Google since you use Google reCAPTCHA.0
Description: You should avoid using Google reCAPTCHA since it will share your users information with Google.
Offenders:
Set a referrer-policy header to make sure you do not leak user information. (referrerPolicyHeader)Set a referrer-policy header to make sure you do not leak user information.0
Description: Referrer Policy is a new header that allows a site to control how much information the browser includes with navigations away from a document and should be set by all sites. https://scotthelme.co.uk/a-new-security-header-referrer-policy/.
Offenders:
Set a strict transport header to make sure the user always use HTTPS. (strictTransportSecurityHeader)A strict transport header is set but miss out on setting includeSubDomainsThe max age is lower than six months. Increase it to get a better score.70
Description: The HTTP Strict-Transport-Security response header (often abbreviated as HSTS) lets a web site tell browsers that it should only be accessed using HTTPS, instead of using HTTP. https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Strict-Transport-Security.
Do not share user data with third parties. (thirdPartyPrivacy)The page has 4% requests that are 3rd party (3 requests with a size of 289.5 kB). The page also have request to companies that harvest data from users and do not respect users privacy (see https://en.wikipedia.org/wiki/Surveillance_capitalism). The page do 1 utility request and uses 1 utility tool. The page do 2 survelliance requests and uses 2 survelliance tools.0
Description: Using third party requests shares user information with that third party. Please avoid that! The project https://github.com/patrickhulce/third-party-web is used to categorize first/third party requests.
Offenders:

Page info

Page info
TitleDemo University
Width1350
Height1992
DOM elements358
Avg DOM depth10
Max DOM depth19
Iframes0
Script tags46
Local storage0 b
Session storage0 b
HTML vs AMPPlain good HTML page
Resource Hints
preconnect
https://fonts.bunny.net/

Technologies used to build the page.

Data collected using Wappalyzer.  Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyser find more information about technologies used.

TechnologyConfidenceCategory
TinyMCE 100  Rich text editors
Varnish 100  Caching
Google PageSpeed 1.13.35.2100  Caching Web server extensions
Bootstrap 1.14.0100  UI frameworks
Apache 100  Web servers
reCAPTCHA 100  Security
jQuery Migrate 3.4.1100  JavaScript libraries
jQuery 100  JavaScript libraries
Slick 100  JavaScript libraries
DataTables 100  JavaScript libraries
Clipboard.js 100  Miscellaneous

Data collected using Third Party Web.

Cdn
jQuery CDN
Google CDN
Utility
Other Google APIs/SDKs
Survelliance
Other Google APIs/SDKs
Google CDN
| Browser metrics | Visual Metrics | Largest Contentful Paint | Cumulative Layout Shift | Visual Elements | Metrics from CDP | 

Visual Metrics

Visual Metrics
First Visual Change3.466 s
Speed Index3.827 s
Largest Image4.066 s
Last Meaningful Paint4.066 s
Visual Complete 85%4.066 s
Visual Complete 95%4.066 s
Visual Complete 99%4.066 s
Last Visual Change4.066 s
Visual Readiness600 ms

Browser Metrics

Navigation Timing
backEndTime567 ms
domContentLoadedTime3.406 s
domInteractiveTime3.406 s
domainLookupTime0 ms
frontEndTime3.529 s
pageDownloadTime7 ms
pageLoadTime4.103 s
redirectionTime0 ms
serverConnectionTime42 ms
serverResponseTime466 ms
Google Web Vitals
First Contentful Paint (FCP)3.292 s
Largest Contentful Paint (LCP)4.095 s
Cumulative Layout Shift (CLS)0.10
Total Blocking Time (TBT)334 ms
Extra timings
First Contentful Paint (FCP)3.292 s
First Paint3.292 s
Largest Contentful Paint (LCP)4.095 s
Load Event End4.117 s
Fully loaded4.182 s

Largest Contentful Paint

When in time the page main content is rendered (collected using the Largest Contentful Paint API). Read more about Largest Contentful Paint.

Element typeDIV
Element/tag<div class="jumbotron"></div>
Render time 4.095 s
Load time3.805 s
URL https://demo-uni.aec...mo-uni/hero-2.jpg
Size (width*height)715500
DOM path
div:eq(0) > header > div:eq(1)> div:eq(0) > header > div:eq(1)>
LCP

The largest contentful paint is highlighted in the image. If no element is highlighted the element was removed before the screenshot or the LCP API couldn't find the element.

The Largest Contentful Paint API highlighted this image as a part of the LCP.

LCP

Detected Cumulative Layout Shift

0.10210 cumulative layout shift collected from the Cumulative Layout Shift API.

These HTML elements contribute most to the Cumulative Layout Shifts of the page. The higher score, the more layout shift.

ScoreHTML Element
0.10148<div class="container-fluid page-container"></div>,<main class="container-fluid container-xl main-content" role="main"></main>
body > div:eq(0),body > div:eq(0) > main
0.00044<ul class="navbar-nav"></ul>,<div class="input-group me-sm-2"></div>
body > div:eq(0) > header > div:eq(0) > div > nav > div#navbarMain > div:eq(1) > ul,body > div:eq(0) > header > div:eq(0) > div > nav > div#navbarMain > div:eq(1) > form#programSearch > div
0.00018<ul class="navbar-nav"></ul>,<div class="input-group me-sm-2"></div>,<div class="easy-autocomplete-container" id="eac-container-searchInput"></div>
body > div:eq(0) > header > div:eq(0) > div > nav > div#navbarMain > div:eq(1) > ul,body > div:eq(0) > header > div:eq(0) > div > nav > div#navbarMain > div:eq(1) > form#programSearch > div,body > div:eq(0) > header > div:eq(0) > div > nav > div#navbarMain > div:eq(1) > form#programSearch > div > div > div#eac-container-searchInput
Layout shift

The elements that have shifted place is highlighted in the image (that have a higher value than 0.01). If the element shifted outside of the viewport, you will not see it there. It can be hard to understand what content that has shifted, if that's the case, checkout the video or the filmstrip of the run.

Server timings

There are no Server Timings.

Custom metrics collected through JavaScript

There are no custom configured scripts.

Extra metrics collected using scripting

There are no custom extra metrics from scripting.

CDP Performance

namevalue
AudioHandlers0
Documents2
Frames1
JSEventListeners58
LayoutObjects297
MediaKeySessions0
MediaKeys0
Nodes979
Resources110
ContextLifecycleStateObservers4
V8PerContextDatas1
WorkerGlobalScopes0
UACSSResources0
RTCPeerConnections0
ResourceFetchers2
AdSubframes0
DetachedScriptStates0
ArrayBufferContents1
LayoutCount13
RecalcStyleCount20
LayoutDuration461
RecalcStyleDuration168
DevToolsCommandDuration124
ScriptDuration1164
V8CompileDuration5
TaskDuration3617
TaskOtherDuration1696
ThreadTime1
ProcessTime2
JSHeapUsedSize6443172
JSHeapTotalSize8105984
FirstMeaningfulPaint3531

Visual Elements

NameDisplay TimeX YWidthHeight
LargestImage (logo.png)4.066 s 141 24 190 48
<img src="/images/demo-uni/logo.png" alt="" data-pagespeed-url-hash="1195465945" onload="pagespeed.CriticalImages.checkImageForCriticality(this);">
| Summary  | Largest responses  | Requests and sizes per content type  | Size and requests per domain  | Expires and last modified statistics  | Requests loaded after onLoad event  | Render blocking requests  | 

PageXray

How the page is built.

Summary
HTTP versionHTTP/1.1
Total requests77
Total domains6
Total transfer size3.0 MB
Total content size6.2 MB
Responses missing compression52
Number of cookies1
Third party cookies0
Requests per response code
20076
2041

Largest assets on the page (by transfer size)

URLTypeTransfer SizeContent Size
https://demo-uni.aec...mo-uni/hero-2.jpgimage494.8 KB494.8 KB
https://static.aecda...regular-400.woff2other386.2 KB386.2 KB
https://static.aecda...a-solid-900.woff2other320.1 KB320.1 KB
https://demo-uni.aec..._course_image.jpgimage281.9 KB281.9 KB
https://www.gstatic..../recaptcha__en.jsjavascript271.1 KB637.4 KB
https://static.aecda...ty.min.noStyle.jsjavascript218.4 KB850.8 KB
https://static.aecda...ce/tinymce.min.jsjavascript156.0 KB446.1 KB
https://static.aecda...-brands-400.woff2other108.3 KB108.3 KB
https://static.aecda...datatables.min.jsjavascript107.8 KB412.6 KB
https://static.aecda...b/css/all.min.csscss97.9 KB500.0 KB
https://demo-uni.aec...t_track_image.jpgimage64.2 KB64.1 KB
https://static.aecda...ue.global.prod.jsjavascript56.3 KB154.2 KB
https://static.aecda...t/filepond.min.jsjavascript33.2 KB114.9 KB
https://static.aecda...bootstrap.min.csscss30.5 KB227.2 KB
https://static.aecda...uery-3.7.1.min.jsjavascript29.7 KB85.5 KB
https://static.aecda...rap.bundle.min.jsjavascript22.8 KB78.7 KB
https://static.aecda...s/ag-grid.min.csscss22.0 KB148.1 KB
https://static.aecda...ist/tagify.min.jsjavascript17.7 KB58.3 KB
https://static.aecda...rap-select.min.jsjavascript17.0 KB57.0 KB
https://static.aecda...atatables.min.csscss15.4 KB92.9 KB

Requests and sizes per content type

ContentHeader SizeTransfer SizeContent SizeRequests
html497 B9.2 KB42.2 KB1
css9.3 KB214.0 KB1.2 MB23
javascript15.1 KB1.0 MB3.3 MB38
image2.9 KB854.1 KB854.0 KB6
font0 b60.1 KB56.5 KB5
other958 B814.6 KB814.6 KB3
plain214 B0 b0 b1
Total28.8 KB3.0 MB6.2 MB77

Size and requests per domain

DomainHeader SizeTransfer SizeContent SizeRequests
demo-uni.aecdaily.com12.2 KB929.5 KB1.1 MB25
fonts.bunny.netN/A61.4 KB69.1 KB6
static.aecdaily.com16.6 KB1.7 MB4.3 MB43
code.jquery.comN/A10.2 KB31.2 KB1
www.google.comN/A1.4 KB1.4 KB1
www.gstatic.comN/A271.1 KB637.4 KB1

Expires and last modified statistics

typeminmedianmax
Expires0 seconds2 days1 year
Last modified6 days3 years34 years

Requests loaded after onLoad event

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript0 b0
image1.2 KB1
font0 b0
plain0 b1
Total1.2 KB2

Requests loaded after onContentLoad

Includes requests done after onLoad.

ContentTransfer SizeRequests
html0 b0
css0 b0
javascript271.1 KB1
image354.4 KB4
font24.1 KB2
other494.5 KB2
plain0 b1
Total1.1 MB10

Render blocking requests

Render blocking information directly from Chrome.

BlockingIn body parser blockingPotentially blocking
5901

Render information

URLType
https://static.aecda...regular-400.woff2non_blocking
https://static.aecda...a-solid-900.woff2non_blocking
https://www.gstatic..../recaptcha__en.jsnon_blocking
https://static.aecda...ty.min.noStyle.jsblocking
https://static.aecda...ce/tinymce.min.jsblocking
https://static.aecda...-brands-400.woff2non_blocking
https://static.aecda...datatables.min.jsblocking
https://static.aecda...b/css/all.min.cssblocking
https://static.aecda...ue.global.prod.jsblocking
https://static.aecda...t/filepond.min.jsblocking
https://static.aecda...bootstrap.min.cssblocking
https://static.aecda...uery-3.7.1.min.jsblocking
https://static.aecda...rap.bundle.min.jsblocking
https://static.aecda...s/ag-grid.min.cssblocking
https://static.aecda...ist/tagify.min.jsblocking
https://static.aecda...rap-select.min.jsblocking
https://static.aecda...atatables.min.cssblocking
https://static.aecda...0/Sortable.min.jsblocking
https://static.aecda...me-quartz.min.cssblocking
https://demo-uni.aec...44/css/common.cssblocking
https://demo-uni.aec...opentip-jquery.jsblocking
https://static.aecda.../flatpickr.min.jsblocking
https://fonts.bunny....-600-normal.woff2non_blocking
https://static.aecda....1/parsley.min.jsblocking
https://fonts.bunny....-700-normal.woff2non_blocking
https://fonts.bunny....-500-normal.woff2non_blocking
https://fonts.bunny....-400-normal.woff2non_blocking
https://fonts.bunny....-800-normal.woff2non_blocking
https://demo-uni.aec...js/jquery.form.jsblocking
https://code.jquery....-migrate-3.4.1.jsblocking
https://static.aecda...lick/slick.min.jsblocking
https://static.aecda...y.validate.min.jsblocking
https://demo-uni.aec...y.autocomplete.jsblocking
https://static.aecda...xios/axios.min.jsblocking
https://static.aecda...tocomplete.min.jsblocking
https://demo-uni.aec...lete_email.min.jsblocking
https://demo-uni.aec...ablesorter.min.jsblocking
https://static.aecda.../clipboard.min.jsblocking
https://static.aecda.../filepond.min.cssblocking
https://static.aecda...ry.matchHeight.jsblocking
https://static.aecda...flatpickr.min.cssblocking
https://demo-uni.aec.../manage_tables.jsblocking
https://static.aecda...8/dist/tagify.cssblocking
https://demo-uni.aec....com/js/common.jsblocking
https://static.aecda...ap-select.min.cssblocking
https://static.aecda...ery.modal.min.cssblocking
https://static.aecda...gsort/dragsort.jsblocking
https://static.aecda...uery.modal.min.jsblocking
https://demo-uni.aec...rap-show-toast.jsblocking
https://www.google.com/recaptcha/api.jspotentially_blocking
https://static.aecda...ocomplete.min.cssblocking
https://fonts.bunny....nts.bunny.net/cssblocking
https://demo-uni.aec.../country_state.jsblocking
https://demo-uni.aec...mplete_address.jsblocking
https://demo-uni.aec...9/css/opentip.cssblocking
https://static.aecda...idate-type.min.jsblocking
https://static.aecda...te.themes.min.cssblocking
https://demo-uni.aec.../js.cookie.min.jsblocking
https://demo-uni.aec...ni/university.cssblocking
https://static.aecda...idate-size.min.jsblocking
https://demo-uni.aec...69/css/tables.cssblocking
https://static.aecda...m/slick/slick.cssblocking
https://demo-uni.aec...9/css/parsley.cssblocking
https://demo-uni.aec...plete_address.cssblocking
https://static.aecda...stom/telephone.jsblocking
https://static.aecda...arp-solid.min.cssblocking
https://static.aecda.../fa-aec-icons.cssblocking
https://static.aecda...om/maxfilesize.jsblocking
https://static.aecda...sort/dragsort.cssblocking
| CPU Long Tasks | CPU Time Spent | CPU Time Spent Per Request | CPU Time Per Tool/Domain | 

CPU

Download the Chrome trace log and drag and drop it into Developer Tools / Performance in Chrome.

Download trace log

Long Tasks

Collected using the Long Task API. A long task is a task that take 50 milliseconds or more.

TypeQuantityTotal duration (ms)
Total Blocking Time 334
Max Potential First Input Delay 159
Long Tasks before First Paint51379
Long Tasks before First Contentful Paint51379
Long Tasks after Load Event End00
Total Long Tasks101963

Individual Long Tasks

namestartTimedurationcontainerIdcontainerNamecontainerSrccontainerType
self1757360window
self2178193window
self239283window
self2477345window
self2853398window
self3295108window
self340481window
self3546159window
self3916110window
self4028126window

CPU time spent

Calculated using Tracium.

Categories (ms)
parseHTML719
styleLayout630
paintCompositeRender181
scriptParseCompile6
scriptEvaluation1064
garbageCollection43
other927
Events (ms)
RunTask871
V8.Execute862
Layout461
ParseHTML425
ParseAuthorStyleSheet294
UpdateLayoutTree169
CompositeLayers127
FireAnimationFrame46
v8.callFunction38
FunctionCall38
UpdateLayerTree36
V8.BytecodeBudgetInterrupt32
V8.BytecodeBudgetInterruptWithStackCheck24
V8.GC_MC_INCREMENTAL24
Paint16
V8.NewContext16
EvaluateScript15
V8.GC_SCAVENGER_SCAVENGE_PARALLEL10

Time spent per request

URLCPU time (ms)
https://static.aecdaily.com/jquery/jquery-3.7.1.min.js306
https://static.aecdaily.com/javascript_pkgs/filepond_20221028/dist/filepond.min.js201
https://static.aecdaily.com/javascript_pkgs/tinymce_7.6.0/tinymce/js/tinymce/tinymce.min.js177
https://demo-uni.aecdaily.com/117
https://www.gstatic.com/recaptcha/releases/Hi8UmRMnhdOBM3IuViTkapUP/recaptcha__en.js102
https://static.aecdaily.com/ag-grid/js/ag-grid-community.min.noStyle.js87
https://static.aecdaily.com/datatables/DataTables-2.0.2/datatables.min.js77
https://static.aecdaily.com/bootstrap/5.3.0-alpha3/bootstrap-5.3.0-alpha3-dist/js/bootstrap.bundle.min.js66
https://static.aecdaily.com/javascript_pkgs/filepond-plugin-file-validate-type_20221028/dist/filepond-plugin-file-validate-type.min.js16
https://static.aecdaily.com/clipboard/2.0.8/clipboard.min.js11

CPU time spent

Tool/domainTime (ms)
static.aecdaily.com940.5
demo-uni.aecdaily.com116.5
Google CDN102.2
| Categories | | Tools | | First vs third | 

Third party

Third party requests categorised by Third party web.

CategoryRequests
cdn 2
utility 1
survelliance 2
CategoryNumber of tools
cdn 2
utility 1
survelliance 2

Third party requests and tools

cdn (2 requests)
jQuery CDN
Google CDN
utility (1 requests)
Other Google APIs/SDKs
survelliance (2 requests)
Other Google APIs/SDKs
Google CDN

Unmatched third party domains

Here's a list of domains that didn't match any tool in Third party web. If you are sure they are third party domains, please do a PR to that project. You can also fine tune the list using --firstParty.

fonts.bunny.net

First party requests and sizes per content type

Calculated using .*aecdaily.* (use --firstParty to configure).

ContentHeader SizeTransfer SizeContent SizeRequests
html497 B9.2 KB42.2 KB1
css9.3 KB212.7 KB1.1 MB22
javascript15.1 KB788.1 KB2.6 MB35
image2.9 KB854.1 KB854.0 KB6
font0 b0 b0 b0
other958 B814.6 KB814.6 KB3
plain214 B0 b0 b1
Total28.8 KB2.6 MB5.5 MB68

Third party requests and sizes per content type

ContentHeader SizeTransfer SizeContent SizeRequests
html0 b0 b0 b0
css0 b1.3 KB12.6 KB1
javascript0 b282.7 KB670.1 KB3
image0 b0 b0 b0
font0 b60.1 KB56.5 KB5
TotalN/A344.1 KB739.1 KB9
| afterPageCompleteCheck.png | layoutShift.png | largestContentfulPaint.png | 

Screenshots

afterPageCompleteCheck.png

afterPageCompleteCheck.png

layoutShift.png

layoutShift.png

largestContentfulPaint.png

largestContentfulPaint.png

Axe

Axe is an accessibility testing engine for websites and other HTML-based user interfaces. Read more about axe-core. Tested using axe-core 4.3.3.

Violations

critical
Buttons must have discernible text (cat.name-role-value,wcag2a,wcag412,section508,section508.22.a,ACT) - button-nameEnsures buttons have discernible text
Fix any of the following: Element does not have inner text that is visible to screen readers aria-label attribute does not exist or is empty aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty Element has no title attribute Element's default semantics were not overridden with role="none" or role="presentation"
  • <button class="btn btn-sm btn-secondary" type="submit"><i class="fas fa-search"></i></button>
serious
Elements must have sufficient color contrast (cat.color,wcag2aa,wcag143) - color-contrastEnsures the contrast between foreground and background colors meets WCAG 2 AA contrast ratio thresholds
Fix any of the following: Element has insufficient color contrast of 4.12 (foreground color: #0d6efd, background color: #f5f5f5, font size: 12.0pt (16px), font weight: normal). Expected contrast ratio of 4.5:1
  • <a href="#cb74" class="nav-link" id="tab-74" rel="cb:cookie" data-bs-toggle="tab" data-content-base="74" data-bs-target="#cb-tab-74" data-bs-aec-online="1" data-bs-aec-live="1" role="tab" aria-selected="false" tabindex="-1">
  • <a class="ccard-cta" href="/en/courses/view_track/34"><i class="fa-regular fa-circle-play me-2"></i>Get Started</a>
  • <a class="ccard-cta" href="/en/courses/view/370"><i class="fa-regular fa-circle-play me-2"></i>Get Started</a>
  • <a href="/en/courses/tag/example" class="btn btn-tag">example</a>
  • <a href="/en/courses/tag/course" class="btn btn-tag">course</a>
  • <a href="/en/courses/tag/cornerstone" class="btn btn-tag">cornerstone</a>
  • <a class="ccard-cta" href="/en/courses/view/366"><i class="fa-regular fa-circle-play me-2"></i>Get Started</a>
  • <a class="ccard-cta" href="/en/courses/view/371"><i class="fa-regular fa-circle-play me-2"></i>Get Started</a>
moderate
Heading levels should only increase by one (cat.semantics,best-practice) - heading-orderEnsures the order of headings is semantically correct
Fix any of the following: Heading order invalid
  • <h5>Follow us on social media</h5>
serious
<html> element must have a lang attribute (cat.language,wcag2a,wcag311,ACT) - html-has-langEnsures every HTML document has a lang attribute
Fix any of the following: The <html> element does not have a lang attribute
  • <html>
Links must have discernible text (cat.name-role-value,wcag2a,wcag412,wcag244,section508,section508.22.a,ACT) - link-nameEnsures links have discernible text
Fix all of the following: Element is in tab order and does not have accessible text Fix any of the following: Element does not have text that is visible to screen readers aria-label attribute does not exist or is empty aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty Element has no title attribute
  • <a class="navbar-brand" href="/en">
  • <a class="nav-link aec-si-link" href="http://www.facebook.com/AECDaily"><i class="fab fa-aec-facebook-square fa-2x"></i></a>
  • <a class="nav-link aec-si-link" href="http://www.linkedin.com/company/aec-daily"><i class="fab fa-aec-linkedin fa-2x"></i></a>
  • <a class="nav-link aec-si-link" href="https://www.instagram.com/aecdaily/"><i class="fab fa-aec-instagram fa-2x"></i></a>
  • <a class="nav-link aec-si-link" href="http://twitter.com/AECdaily"><i class="fab fa-aec-x-twitter fa-2x"></i></a>
  • <a class="nav-link aec-si-link" href="https://youtube.com/aecdaily"><i class="fab fa-aec-youtube fa-2x"></i></a>
moderate
Page should contain a level-one heading (cat.semantics,best-practice) - page-has-heading-oneEnsure that the page, or at least one of its frames contains a level-one heading
Fix all of the following: Page must have a level-one heading
  • <html>

| Per domain | Dirtiest assets | Per Content Type | 

Sustainable Web

We know that using the internet means using electricity, and because most of that electricity comes from fossil fuels, it means that more data we send, the more fossil fuels we end up burning.

This is terrible news for the climate, and building a sustainable web is the 9th of the W3C's Ethical Web Principles.

If you build for the web, much of what you know about making sites faster and more accessible also makes them greener. If you're interested in learning more, you can find out at The Green Web Foundation.

Use--sustainable.pageViewsto configure the number of page views and calculate total CO2 emission.

demo-uni.aecdaily.com does not appear to be running on green energy.

This information comes from The Green Web Foundation's datasets, which are published as open data. If you have questions, corrections or want to use this data yourself, please visit (href='https://www.thegreenwebfoundation.org') The Green Web Foundation website.

Page viewsEstimated CO2 emissions Transfer Size
1 page view total8.83 grams3.0 MB
1 page view first party7.97 grams (90.26 %)2.6 MB
1 page view third party0.86 grams (9.74 %)344.1 KB

Per domain

DomainEstimated CO2 emissionsTransfer Size
static.aecdaily.com 5.21 grams (58.94 %)1.7 MB
demo-uni.aecdaily.com 2.77 grams (31.32 %)929.5 KB
www.gstatic.com green0.64 grams (7.28 %)271.1 KB
fonts.bunny.net 0.18 grams (2.07 %)61.4 KB
code.jquery.com 0.03 grams (0.34 %)10.2 KB
www.google.com green0.00 grams (0.04 %)1.4 KB

Dirtiest assets

AssetEstimated CO2 emissionsTransfer Size
https://demo-uni.aec...mo-uni/hero-2.jpg1.47 grams (16.67 %)494.8 KB
https://static.aecda...regular-400.woff21.15 grams (13.01 %)386.2 KB
https://static.aecda...a-solid-900.woff20.95 grams (10.79 %)320.1 KB
https://demo-uni.aec..._course_image.jpg0.84 grams (9.50 %)281.9 KB
https://www.gstatic..../recaptcha__en.js0.81 grams (9.13 %)271.1 KB
https://static.aecda...ty.min.noStyle.js0.65 grams (7.36 %)218.4 KB
https://static.aecda...ce/tinymce.min.js0.46 grams (5.26 %)156.0 KB
https://static.aecda...-brands-400.woff20.32 grams (3.65 %)108.3 KB
https://static.aecda...datatables.min.js0.32 grams (3.63 %)107.8 KB
https://static.aecda...b/css/all.min.css0.29 grams (3.30 %)97.9 KB

Per Content Type

Content TypeEstimated CO2 emissionsTransfer Size
javascript3.19 grams (36.08 %)1.0 MB
image2.54 grams (28.78 %)854.1 KB
other2.42 grams (27.45 %)814.6 KB
css0.64 grams (7.21 %)214.0 KB
font0.18 grams (2.03 %)60.1 KB
html0.03 grams (0.31 %)9.2 KB
plain0 (0.00 %)0 b