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Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
1
REVIEW
3
PASS
9
INFO
1

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
97
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
65
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

685 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.19 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

0 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

685 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

1.19 s

Page Load Progression

375 ms
750 ms
1.1 s
1.5 s
1.9 s
2.2 s
2.6 s
3.0 s
Checks
14
9 PASS 3 REVIEW 1 FIX
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Third-Party Impact
47% third-party, 0 ms blocking
REVIEW
47% third-party, 0 ms blocking
Info::
Third-party code accounts for 47% of page weight (296.7 KiB of 625.7 KiB)
Info::
Third-party blocking time is low (0 ms)
53%
47%
First-party Third-party
C
JS Bundles
Action
4 scripts, 152 KB unused
REVIEW
4 scripts, 152 KB unused
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-N8R...: 65 KB unused (52%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-C9NP...: 64 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://icq.com/cached/js/landing/desktop.min.js: 24 KB unused (65%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 152 KB
152 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtm.js?id=GTM-N8R3VWS124 KB65 KB (52%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-C9NP8Z7Z5F&cx=c&_slc=1150 KB64 KB (43%)✓3rd
https://icq.com/cached/js/landing/desktop.min.js38 KB24 KB (65%)✓1st
https://www.google-analytics.com/analytics.js21 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
626 KB transferred, 20 requests
PASS
626 KB transferred, 20 requests
Info::
Page weighs 1.2 MB (626 KB transferred)
Info::
20 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
626 KB / 2.4 MB budget
626 KB transferred
20 requests
0.13 g CO2 per page load
JavaScript 332.8 KiB 53%
Fonts 156.7 KiB 25%
Images 97.6 KiB 16%
Other 24.8 KiB 4%
HTML 12.1 KiB 2%
Other 1.1 KiB 0%
Other 543 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
3 images, 0 KB saveable
PASS
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 98 KB
0 oversized -0 KB
3 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
No JS execution data
PASS
No JS execution data
Info::
No significant JS execution detected

Main Thread Breakdown

Script Evaluation 55% Other 21% Script Parsing & Compilation 13% Style & Layout 8%
A+
Font Loading
2 fonts (157 KB)
PASS
2 fonts (157 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

157 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 685 ms LCP 1.2 shttps://icq.com/cached/css/fonts/TTNorms-Bold.woffTTNorms-Bold.woff https://icq.com/cached/css/fonts/TTNorms-Bold.woff — 75.6 KiB — 207 ms — font-display: swaphttps://icq.com/cached/css/fonts/TTNorms-Regular.woffTTNorms-Regular.woff https://icq.com/cached/css/fonts/TTNorms-Regular.woff — 81.1 KiB — 352 ms — font-display: swap
TTNorms-Bold.woff woff swap
Size 76 KB
Load time 207 ms
Start 478 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
TTNorms-Regular.woff woff swap
Size 81 KB
Load time 352 ms
Start 479 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Optimization checklist
  • Preload critical fonts (priority=high)
  • Use woff2 format for all fonts
  • Set font-display to swap, optional, or fallback
  • Subset large fonts (≤100 KB each)

Fixing the unchecked items could save ~47 KB and ~94 ms

A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
20 resources · 626 KB · 152 KB savings available
PASS
20 resources · 626 KB · 152 KB savings available
Info::
Within 1MB page-weight target
Got: 626 KB
Info::
~152 KB of savings available
Warning::
6 third-party resources (47% of weight)
20 resources · 625.7 KiB · 6 third-party Within 1MB page-weight target
JavaScript 53% · 332.8 KiB
Font 25% · 156.7 KiB
Image 18% · 114.2 KiB
Document 2% · 15.3 KiB
Other 1% · 6.6 KiB

~152.3 KiB of savings available

Remove unused JavaScript: 152.3 KiB
Network Waterfall
20 requests over 1015ms
INFO
0 ms 500 ms 1.0 s FCP 685 ms LCP 1.2 shttps://icq.com// https://icq.com/ — 302 — 261 B — 211 ms — http/1.1https://icq.com/en/en https://icq.com/en — 302 — 1.5 KiB — 81 ms — http/1.1https://icq.com/desktop//desktop/ https://icq.com/desktop/ — 302 — 1.5 KiB — 77 ms — http/1.1https://icq.com/desktop/en?/desktop/en? https://icq.com/desktop/en? — 200 — 12.1 KiB — 79 ms — http/1.1https://icq.com/cached/img/landing/desktop/logo.png/cached/img/landing/desktop/logo.pn... https://icq.com/cached/img/landing/desktop/logo.png — 200 — 2.4 KiB — 81 ms — http/1.1https://icq.com/cached/js/landing/desktop.min.js/cached/js/landing/desktop.min.js https://icq.com/cached/js/landing/desktop.min.js — 200 — 37.8 KiB — 164 ms — http/1.1https://www.googletagmanager.com/gtm.js?id=GTM-N8R3VWSwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-N8R3VWS — 200 — 123.9 KiB — 134 ms — h2https://icq.com/cached/img/landing/desktop/arrow.svg/cached/img/landing/desktop/arrow.s... https://icq.com/cached/img/landing/desktop/arrow.svg — 200 — 1.7 KiB — 220 ms — http/1.1https://icq.com/cached/img/landing/desktop/grid.png/cached/img/landing/desktop/grid.pn... https://icq.com/cached/img/landing/desktop/grid.png — 200 — 93.5 KiB — 437 ms — http/1.1https://icq.com/cached/css/fonts/TTNorms-Bold.woff/cached/css/fonts/TTNorms-Bold.woff https://icq.com/cached/css/fonts/TTNorms-Bold.woff — 200 — 75.6 KiB — 207 ms — http/1.1https://icq.com/cached/css/fonts/TTNorms-Regular.woff/cached/css/fonts/TTNorms-Regular.w... https://icq.com/cached/css/fonts/TTNorms-Regular.woff — 200 — 81.1 KiB — 352 ms — http/1.1https://www.google-analytics.com/analytics.jswww.google-analytics.com/analytics.... https://www.google-analytics.com/analytics.js — 200 — 20.9 KiB — 77 ms — h2https://icq.com/system/error/system/error https://icq.com/system/error — 200 — 1.7 KiB — 140 ms — http/1.1https://www.google-analytics.com/j/collect?v=1&_v=j102&a=722969953&t=pageview&_s=1&dl=https%3A%2F%2Ficq.com%2Fdesktop%2Fen&ul=en-us&dt=ICQ&sr=800x600&vp=1350x940&_u=YGBAgEABAAAAACAAI~&jid=866970387&gjid=1910781866&cid=1841112634.1776812644&tid=UA-153489386-1&_gid=831379542.1776812644&_slc=1&gtm=45He64h1n81N8R3VWSza200&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266400~118463262&npa=1&z=1641140687www.google-analytics.com/j/collect?... https://www.google-analytics.com/j/collect?v=1&_v=j102&a=722969953&t=pageview&_s=1&dl=https%3A%2F%2Ficq.com%2Fdesktop%2Fen&ul=en-us&dt=ICQ&sr=800x600&vp=1350x940&_u=YGBAgEABAAAAACAAI~&jid=866970387&gjid=1910781866&cid=1841112634.1776812644&tid=UA-153489386-1&_gid=831379542.1776812644&_slc=1&gtm=45He64h1n81N8R3VWSza200&gcd=13l3l3l2l1l1&dma_cps=a&dma=1&tag_exp=0~115616985~115938466~115938469~117266400~118463262&npa=1&z=1641140687 — 200 — 459 B — 26 ms — h2https://icq.com/system/error/system/error https://icq.com/system/error — 200 — 1.7 KiB — 147 ms — http/1.1https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j102&tid=UA-153489386-1&cid=1841112634.1776812644&jid=866970387&gjid=1910781866&_gid=831379542.1776812644&npa=1&_u=YGBAgEABAAAAAGAAI~&z=583805511stats.g.doubleclick.net/j/collect?t... https://stats.g.doubleclick.net/j/collect?t=dc&aip=1&_r=3&v=1&_v=j102&tid=UA-153489386-1&cid=1841112634.1776812644&jid=866970387&gjid=1910781866&_gid=831379542.1776812644&npa=1&_u=YGBAgEABAAAAAGAAI~&z=583805511 — 200 — 644 B — 72 ms — h2https://www.googletagmanager.com/gtag/js?id=G-C9NP8Z7Z5F&cx=c&_slc=1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-C9NP8Z7Z5F&cx=c&_slc=1 — 200 — 150.2 KiB — 55 ms — h2https://icq.com/system/error/system/error https://icq.com/system/error — 200 — 1.6 KiB — 138 ms — http/1.1https://region1.google-analytics.com/g/collect?v=2&tid=G-C9NP8Z7Z5F&gtm=45je64k0h2v9126324282za20g&_p=1776812643947&gcd=13l3l3l2l3l1&npa=1&dma_cps=a&dma=1&_eu=EBAI&are=1&cid=1841112634.1776812644&frm=0&ir=1&pscdl=noapi&rcb=0&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938468~117266400&dl=https%3A%2F%2Ficq.com%2Fdesktop%2Fen&dt=ICQ&sid=1776812644&sct=1&seg=0&_tu=wAQ&en=page_view&_fv=1&_ss=1&_ee=1&gap.uat=0~115616985~115938466~115938469~117266400~118463262&tfd=877region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-C9NP8Z7Z5F&gtm=45je64k0h2v9126324282za20g&_p=1776812643947&gcd=13l3l3l2l3l1&npa=1&dma_cps=a&dma=1&_eu=EBAI&are=1&cid=1841112634.1776812644&frm=0&ir=1&pscdl=noapi&rcb=0&sr=800x600&uaa=x86&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938468~117266400&dl=https%3A%2F%2Ficq.com%2Fdesktop%2Fen&dt=ICQ&sid=1776812644&sct=1&seg=0&_tu=wAQ&en=page_view&_fv=1&_ss=1&_ee=1&gap.uat=0~115616985~115938466~115938469~117266400~118463262&tfd=877 — 204 — 543 B — 65 ms — h2https://icq.com/cached/img/landing/favicon.ico/cached/img/landing/favicon.ico https://icq.com/cached/img/landing/favicon.ico — 200 — 16.6 KiB — 84 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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