www.immersivelabs.com speed test — 20 Oct 2026

Measured from the wfix.shop server on 20 October 2026 at 13:53 UTC. Grade A (97/100), with the screenshots, the timings and the fixes that matter.

https://www.immersivelabs.com/

20 October 2026 at 13:53 UTC · Free test · report pt_dab3e1df4c67
Grade
A
97/100
Performance99/100
Structure94/100

14 audit(s) passed, 2 need work

First byte (TTFB)239 msmeasured from this server
Fully loaded1.31 sfirst byte + slowest asset
Requests26document + assets
Page weight249.7 KBcompressed transfer
HTML document83.0 KBgzip
ProtocolHTTP/3cloudflare
Third-party166.6 KBother hosts

Where the first byte went

  • DNS lookup 68 ms 28%
  • TCP connect 22 ms 9%
  • Server wait 148 ms 62%

Measured on the connection that fetched the HTML. Every other request on the page waits for the end of this bar before it can start.

How this page compares

First bytefaster than 86% of 4,999 pages tested here239 ms against a median of 449 ms
Page weightlighter than 76% of 4,999 pages tested here249.7 KB against a median of 650.5 KB
Fully loadedfaster than 82% of 4,999 pages tested here1.31 s against a median of 1.84 s
Requestssends more requests than 100% of 4,999 pages tested here26 against a median of 26

Every report published here is in this comparison, so it is a reference population of pages tested from one server - not a benchmark of the whole web.

What these numbers mean

  • The first byte arrived in 239 ms. That is workable, and the cheapest win left is caching or a warmer connection.
  • The page transfers 249.7 KB over 26 request(s). Images files are 67% of it, so resize and recompress the largest images before anything else.
  • The HTML itself arrives gzip-compressed.
  • It runs over HTTP/3, so the assets share a connection instead of opening one each.
  • 67% of the weight comes from other hosts (analytics, fonts, embeds), which also means their slow day becomes your slow day.
  • The largest element painted at 1.15 s, inside the 2.5 s Google calls good.
  • The main thread was blocked for 405 ms, so taps and scrolling wait while scripts run.

Fix first: Render-blocking resources - Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

Read on one shared server, not a visitor's phone: use it to compare pages against each other, not as a promise about every connection. We fix what these tests find.

Screenshot

What the page looks like

Loaded in headless Chromium on this server. Click an image to open it full size.

Mobile screenshot of www.immersivelabs.com
Mobile 390 × 844 · 69.3 KB · page is 6000 px tall

Browser render

The same URL loaded in a real browser, so these are the readings curl cannot produce. The grade above is still built from the server measurements.

Largest contentful paint1.15 sgood is under 2.5 s
Cumulative layout shift0.000under 0.1 is stable
Total blocking time405 mslong tasks during load
First contentful paint1.15 sfirst content on screen
Browser page weight6.01 MB200 request(s), scripts included
Failed requests11blocked or unreachable
Largest contentful paint1.15 s
Goodgood under 2.5 s, poor over 4 s
Cumulative layout shift0.000
Goodgood under 0.1, poor over 0.25
Total blocking time405 ms
Needs improvementgood under 200 ms, poor over 600 ms

Page weight by type

What the page is made of

Images 25 requests
166.6 KB 67%

Transfer size, compressed as sent. 26 request(s) in total, 249.7 KB across all of them.

Top issues

Render-blocking resources

high impact

6 render-blocking resource(s) in the document head (4 script(s), 2 stylesheet(s)). The page cannot paint until each one arrives.

Fix: Add defer or async to scripts that do not change the first paint, inline the critical CSS, and load the rest with media="print" plus an onload swap.

Avoid extra redirects

medium impact

1 redirect hop(s) before the page load started, each one a full round trip before the first byte.

Fix: Link to the canonical URL (and make sure http, the apex domain and www all point at it) so no visitor pays a redirect first.

Waterfall

Slowest requests

IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/691c57c3cf105…
1.07 s
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/6a86fad3a3e8e…
1.06 s
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/690a0c3687aee…
1.00 s
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/691206ebe3403…
966 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/6a44d67a199a4…
949 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/690a0c3687aee…
947 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/6a4e534c212b3…
944 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfccf5a3…
940 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/6911c98c1ee44…
937 ms
IMAGEScdn.prod.website-files.com/6735fba9a631272fb4513263/6a86b36f514de…
937 ms

Each bar is one request's own response time, scaled to the slowest. Assets were fetched in parallel, so the bars overlap in real time rather than stacking. first party third party

RequestTypeStatusTimeSize
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/691c57c3cf105c81c97e59cf_Frame%201.svg 3rd partyimages2001.07 s2.4 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a86fad3a3e8e55693792c9a_cms-nav-image.avif 3rd partyimages2001.06 s8.1 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/690a0c3687aeec12e0206d67_Mockup%20content%20(6016%20px%20x%203384%20px).webp 3rd partyimages2001.00 s66.5 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/691206ebe3403a8807b627d4_Frame%202136138895%20(1).svg 3rd partyimages200966 ms196 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a44d67a199a4e6155d00d7c_86e255d2697ffa537a28c8667c528fc1_home-header-background-image%20copy.avif 3rd partyimages200949 ms9.5 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/690a0c3687aeec12e0206d67_Mockup%20content%20(6016%20px%20x%203384%20px)-p-500.webp 3rd partyimages200947 ms18.8 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a4e534c212b388d3fe33773_351a9a14e91bf80506c1cae213dd1bf8_AI%20Hub.svg 3rd partyimages200944 ms557 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfccf5a3626abab6028_Award%20-%20High%20Performer%202025.avif 3rd partyimages200940 ms1.5 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6911c98c1ee4440094a2ea32_Group.svg 3rd partyimages200937 ms3.1 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a86b36f514de2f3c3df16ab_fcbb8559f75607ff983bf61170630e1e_Offensive%20Security.svg 3rd partyimages200937 ms500 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/691206eb3da5e10e4e86df7b_Frame%202136138895.svg 3rd partyimages200931 ms289 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e0db31f31c9a34d276f099_Immersive%20Logo%20colorChange.svg 3rd partyimages200930 ms3.2 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a44dbdf29ac5adfaee3e45c_award-icon-right.svg 3rd partyimages200928 ms564 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfce8f26cfe5771b42b_Award%20-%20Cyber%20Security%202024.avif 3rd partyimages200923 ms1.7 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/690e0109d09795aa2bd34c73_Frame%201.svg 3rd partyimages200920 ms2.4 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a44dbdfd5844b8cd4716c4e_award-icon-left.svg 3rd partyimages200920 ms565 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/67ea6e4dc7d9e7940a86668e_a856caea8f872a304f4893861f684706_HSBC.svg 3rd partyimages200919 ms1.3 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a44de95f594a7acb08ebeeb_87d612efe5917a28a52044a96d92e3d7_home-hero-ui-image.avif 3rd partyimages200909 ms35.8 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a86b36f4310e51360485a2b_0cb5903b8d9c8d6dbf28d2df9a7fd1b6_Defensive%20Security.svg 3rd partyimages200908 ms412 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/6a86b36f2953c7cc56972adb_d7ca9a468525630ddb79e36553de251c_Crisis%20Management.svg 3rd partyimages200904 ms536 B
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfc461fb63983f780be_Award%20-%20Forrester%202023.avif 3rd partyimages200903 ms1.6 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e0d9e82cab125e78005128_Immersive%20Logo%20WhiteOut.svg 3rd partyimages200901 ms3.2 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfcf4ac08386cb8a076_Award%20-%20UK%20Business%202025.avif 3rd partyimages200899 ms1.1 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfc4c2a93e9e3d1ac72_Award%20-%20Enterprise%202025.avif 3rd partyimages200895 ms1.6 KB
https://cdn.prod.website-files.com/6735fba9a631272fb4513263/69e20bfc60a64a2bbbf347e6_Award%20-%20Forrester%202026.avif 3rd partyimages200893 ms1.6 KB
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