Run 2 summary

Summary

Metric	Value
Page metrics
Performance score	75
Total page size	565.6 KB
Requests	15
Timing metrics
TTFB	101 ms
First Paint	744 ms
Fully Loaded	897 ms
Google Web Vitals
TTFB	101 ms
First Contentful Paint (FCP)	744 ms
Largest Contentful Paint (LCP)	872 ms
Cumulative Layout Shift (CLS)	0.00
Total Blocking Time	2 ms
Max Potential FID	52 ms
CPU metrics
CPU long tasks	3
CPU last long task happens at	788 ms
Visual Metrics
First Visual Change	733 ms
Speed Index	765 ms
Visual Complete 85%	867 ms
Visual Complete 99%	900 ms
Last Visual Change	900 ms

Waterfall

Video

Filmstrip

Use--filmstrip.showAll to show all filmstrips.

0 s

0.6 sCPU Long Task duration 154 ms

0.7 sCPU Long Task duration 62 ms

0.8 sFirst Visual Change 733 msDOM Content Loaded Time 735 msFirst Contentful Paint 744 msLayout Shift 0.00009 781 msCPU Long Task duration 52 ms

0.9 sPage Load Time 847 msVisual Complete 85% 867 msVisual Complete 95% 867 msLCP <H5> 872 msLayout Shift 0.00173 885 msFully Loaded 897 msLast Visual Change 900 msVisual Complete 99% 900 ms

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. Tested using Coach-core version 8.1.1.

Coach score

• Total score 81
• Performance score 75
• Privacy score 89
• Best practice score 83

Performance advice (75)

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Title	Advice	Score
Don't scale images in the browser (avoidScalingImages)	The page has 1 image that are scaled more than 100 pixels. It would be better if those images are sent so the browser don't need to scale them.	90
Description: It's easy to scale images in the browser and make sure they look good in different devices, however that is bad for performance! Scaling images in the browser takes extra CPU time and will hurt performance on mobile. And the user will download extra kilobytes (sometimes megabytes) of data that could be avoided. Don't do that, make sure you create multiple version of the same image server-side and serve the appropriate one.
Offenders: https://iliev.co.uk/static/profile.png
Avoid CPU Long Tasks (longTasks)	The page has 3 CPU long tasks with the total of 268 ms. The total blocking time is 2 ms and 2 long tasks before first contentful paint with total time of 216 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 tasks.	40
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. To debug you should use the Chrome timeline log and drag/drop it into devtools or use Firefox Geckoprofiler.
Offenders: unknown self unknown
Avoid Frontend single point of failures (spof)	The page has 1 request inside of the head that can cause a SPOF (single point of failure). Load them asynchronously or move them outside of the document head.	90
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: https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback
Avoid extra requests by setting cache headers (cacheHeaders)	The page has 10 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 528.9 kB the next access.	0
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: https://iliev.co.uk/static/plugins/fontawesome-free/css/all.min.css https://iliev.co.uk/static/dist/css/adminlte.min.css https://iliev.co.uk/static/profile.png https://iliev.co.uk/static/http3.png https://iliev.co.uk/static/plugins/jquery/jquery.min.js https://iliev.co.uk/static/plugins/bootstrap/js/bootstrap.bundle.min.js https://iliev.co.uk/static/dist/js/adminlte.min.js https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-solid-900.woff2 https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-brands-400.woff2 https://iliev.co.uk/favicon.ico
Long cache headers is good (cacheHeadersLong)	The page has 1 request that have a shorter cache time than 30 days (but still a cache time).	99
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: https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback
Total CSS size shouldn't be too big (cssSize)	The total CSS transfer size is 250.2 kB and uncompressed size is 1.5 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.
Offenders: URL Transfer size Content size https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback 1.3 KB 10.2 KB https://iliev.co.uk/static/plugins/fontawesome-free/css/all.min.css 18.6 KB 57.9 KB https://iliev.co.uk/static/dist/css/adminlte.min.css 224.5 KB 1.3 MB
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: https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-solid-900.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdu.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2 https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-brands-400.woff2
Make each CSS response small (optimalCssSize)	https://iliev.co.uk/static/plugins/fontawesome-free/css/all.min.css size is 19 kB (18999) and that is bigger than the limit of 14.5 kB. https://iliev.co.uk/static/dist/css/adminlte.min.css size is 229.9 kB (229852) and that is bigger than the limit of 14.5 kB. Try to make the CSS files fit into 14.5 KB.	80
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: URL Transfer size Content size https://iliev.co.uk/static/plugins/fontawesome-free/css/all.min.css 18.6 KB 57.9 KB https://iliev.co.uk/static/dist/css/adminlte.min.css 224.5 KB 1.3 MB
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: https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback
Avoid missing and error requests (responseOk)	The page has 1 error response. The page has 1 response with code 404.	90
Description: Your page should never request assets that return a 400 or 500 error. These requests are never cached. If that happens something is broken. Please fix it.
Offenders: https://iliev.co.uk/favicon.ico

Best practice advice (83)

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Title	Advice	Score
Meta description (metaDescription)	The page is missing a meta description.	0
Description: Use a page description to make the page more relevant to search engines.
Avoid too many third party requests (thirdParty)	The page do 27% requests to third party domains (4 requests and 45.8 kB). First party is 11 requests and 533.4 kB. The regex .*iliev.* 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 4 responses that sets both a max-age and expires header. There are 15 responses that sets a server header.	81
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: https://iliev.co.uk/ https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback https://iliev.co.uk/static/plugins/fontawesome-free/css/all.min.css https://iliev.co.uk/static/dist/css/adminlte.min.css https://iliev.co.uk/static/profile.png https://iliev.co.uk/static/http3.png https://iliev.co.uk/static/plugins/jquery/jquery.min.js https://iliev.co.uk/static/plugins/bootstrap/js/bootstrap.bundle.min.js https://iliev.co.uk/static/dist/js/adminlte.min.js https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-solid-900.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdu.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdu.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2 https://iliev.co.uk/static/plugins/fontawesome-free/webfonts/fa-brands-400.woff2 https://iliev.co.uk/favicon.ico

Privacy advice (89)

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Title	Advice	Score
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: https://iliev.co.uk/
Do not share user data with third parties. (thirdPartyPrivacy)	The page has 27% requests that are 3rd party (4 requests with a size of 45.8 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 4 survelliance requests and uses 1 survelliance tool.	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: https://fonts.googleapis.com/css?family=Source+Sans+Pro:300,400,400i,700&display=fallback https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ik4zwlxdu.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xK3dSBYKcSV-LCoeQqfX1RYOo3qOK7l.woff2 https://fonts.gstatic.com/s/sourcesanspro/v23/6xKydSBYKcSV-LCoeQqfX1RYOo3ig4vwlxdu.woff2

Page info

Page info
Title	Dean Iliev | Info
Width	1350
Height	995
DOM elements	186
Avg DOM depth	10
Max DOM depth	16
Iframes	0
Script tags	3
Local storage	0 b
Session storage	0 b
Network Information API	4g

Technologies used to build the page.

Data collected using Wappalyzer version 6.10.66. With updated code from Webappanalyzer 2024-12-27. Use --browsertime.firefox.includeResponseBodies htmlor --browsertime.chrome.includeResponseBodies htmlto help Wappalyzer find more information about technologies used.

Technology	Confidence	Category
Nginx 1.27.5	100	Web servers Reverse proxies
HSTS	100	Security
HTTP/3	100	Miscellaneous

Data collected using Third Party Web 0.26.2

Cdn
Google Fonts
Survelliance
Google Fonts

Visual Metrics

Browser Metrics

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 type	H5
Element/tag	<h5></h5>
Render time	872 ms
Element render delay	771 ms
TTFB	101 ms
Resource delay	0 ms
Resource load duration	0 ms
Load time	0 ms
Size (width*height)	10340
DOM path
div > div > section:eq(1) > div > div > div:eq(1) > div > div:eq(1) > div > div#more > h5:eq(0)> div > div > section:eq(1) > div > div > div:eq(1) > div > div:eq(1) > div > div#more > h5:eq(0)>

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.

Detected Cumulative Layout Shift

0.00182 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.

Score	HTML Element
0.00173	,<div style="float: left;" class="col-md-6"></div>,<div class="card card-primary card-outline"></div>,<li class="nav-item"></li>,<div style="float: left;" class="col-md-6"></div>
body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(0) > div > h3 > #text,body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(0) > div > div:eq(2),body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(1),body > div > div > section:eq(1) > div > div > div:eq(1) > div > div:eq(0) > ul > li:eq(1),body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(0) > div > div:eq(1)
0.00009	<ul class="navbar-nav ml-auto"></ul>,<i class="fab fa-linkedin"></i>,<i class="fab fa-github"></i>
body > div > nav > ul,body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(0) > div > div:eq(1) > a > i,body > div > div > section:eq(1) > div > div > div:eq(0) > div:eq(0) > div > div:eq(2) > a > i

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.

Long Animation Frames

Read more about the Long Animation Frames API here here.

The top 10 longest animation frames entries

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

PageXray

How the page is built.

Largest assets on the page (by transfer size)

Requests and sizes per content type

Data per domain

Expires and last modified statistics

Requests loaded after onLoad event

Included requests done after load event end.

Requests loaded after onContentLoad

Includes requests done after DOM content loaded.

Third party

Third party requests categorised by Third party web version 0.26.2.

Third party requests and tools

First party requests and sizes per content type

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

Third party requests and sizes per content type

Screenshots

afterPageCompleteCheck.png

layoutShift.png

largestContentfulPaint.png