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https://thehackernews.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
83
GRADE
B
FIX
2
REVIEW
5
PASS
8
INFO
2

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

78
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

1.23 s

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

4.48 s

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

283 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.

1.67 s

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

5.31 s

Page Load Progression

423 ms
846 ms
1.3 s
1.7 s
2.1 s
2.5 s
3.0 s
3.4 s
Checks
17
8 PASS 5 REVIEW 2 FIX
D
Third-Party Impact
Action
85% third-party, 0 ms blocking
FIX
85% third-party, 0 ms blocking
Warning::
Third-party code accounts for 85% of page weight (1.0 MiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
15%
85%
First-party Third-party
D
JS Execution Cost
Action
2552ms total JS execution
FIX
2552ms total JS execution
Warning::
https://thehackernews.com/?m=1: 1297ms CPU time
Warning::
https://thehackernews.com/cdn-cgi/challenge-platfo...: 447ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-ZDZC...: 319ms CPU time
Info::
Unattributable: 220ms CPU time
Info::
https://files.thehackernews.com/assets/f.min.js?v=...: 194ms CPU time
Info::
Third-party scripts: 733ms (29% of total)

Main Thread Breakdown

Script Evaluation 36% Other 27% Style & Layout 22% Rendering 11%
ScriptTotalScriptingParse/CompileParty
https://thehackernews.com/?m=11297ms104ms3ms1st
https://thehackernews.com/cdn-cgi/challenge-platform/scripts/jsd/main.js447ms426ms7ms1st
https://www.googletagmanager.com/gtag/js?id=G-ZDZCZPGJ7N319ms272ms44ms3rd
Unattributable220ms9ms0ms3rd
https://files.thehackernews.com/assets/f.min.js?v=59&i=6194ms51ms2ms3rd
https://thehackernews.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js75ms48ms7ms1st
B
Page Weight Budget
1.2 MB transferred, 36 requests
REVIEW
1.2 MB transferred, 36 requests
Info::
Page weighs 1.7 MB (1.2 MB transferred)
Info::
36 HTTP requests
Info::
Estimated 0.26 g CO2 per page load
1.2 MB / 2.4 MB budget
1.2 MB transferred
36 requests
0.26 g CO2 per page load
Images 875.2 KiB 69%
JavaScript 203.5 KiB 16%
Fonts 103.3 KiB 8%
HTML 47.2 KiB 4%
Other 27.2 KiB 2%
Other 2.1 KiB 0%
Other 1.6 KiB 0%
Other 559 B 0%
Other 545 B 0%
0 2.4 MB 4.9 MB
Under budget
B
Image Optimization
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA1IA... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 875 KB
0 oversized -0 KB
4 legacy format
1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.

Source: web.dev / Core Web Vitals

B
JS Bundles
5 scripts, 65 KB unused
REVIEW
5 scripts, 65 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-ZDZC...: 65 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 65 KB
65 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-ZDZCZPGJ7N177 KB65 KB (37%)3rd
https://thehackernews.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4 KB1st
https://files.thehackernews.com/assets/f.min.js?v=59&i=69 KB3rd
https://files.thehackernews.com/assets/fonts.js2 KB3rd
https://thehackernews.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?13 KB1st

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
Page Weight Inventory
Action
36 resources · 1.2 MB · 65 KB savings available
REVIEW
36 resources · 1.2 MB · 65 KB savings available
Warning::
Page weight 237 KB over 1MB target
Got: 1.2 MB Expected: ≤ 1 MB
Info::
~65 KB of savings available
Warning::
19 third-party resources (85% of weight)
Info::
2 resources over 200KB
36 resources · 1.2 MiB · 19 third-party 237.1 KiB over 1MB target
Image 72% · 901.9 KiB
JavaScript 16% · 203.5 KiB
Font 8% · 103.3 KiB
Document 4% · 47.2 KiB
Other 0% · 5.1 KiB

~65.0 KiB of savings available

Remove unused JavaScript: 65.0 KiB
B
HTTP Caching
private, max-age=0
REVIEW
private, max-age=0
Info::
Cache-Control header is set
Got: private, max-age=0
Info::
Last-Modified header present
Cache-Control

private, max-age=0

DirectiveValueMeaning
privateOnly browser cache, not CDN/proxy
max-age0Cache for 0 seconds
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+
Font Loading
6 fonts (103 KB)
PASS
6 fonts (103 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

103 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.2 s LCP 4.5 sdata:application/font-woff;base64,d09GRgABAAAAAB3gAA8AAAAALxQAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABHU1VCA…font-woff;base64,d09GRg... data:application/font-woff;base64,d09GRgABAAAAAB3gAA8AAAAALxQAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABHU1VCA… — 7.5 KiB — 64 ms — font-display: swaphttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/400/normal.woff2normal.woff2 https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/400/normal.woff2 — 20.3 KiB — 70 ms — font-display: swaphttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/500/normal.woff2normal.woff2 https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/500/normal.woff2 — 20.7 KiB — 92 ms — font-display: swaphttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/700/normal.woff2normal.woff2 https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/700/normal.woff2 — 20.7 KiB — 93 ms — font-display: swaphttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/900/normal.woff2normal.woff2 https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/900/normal.woff2 — 20.4 KiB — 93 ms — font-display: swaphttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin-ext/400/normal.woff2normal.woff2 https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin-ext/400/normal.woff2 — 13.6 KiB — 87 ms — font-display: swap
font-woff;base64,d09GRg... woff swap
Size 7 KB
Load time 64 ms
Start 150 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
normal.woff2 woff2 swap
Size 20 KB
Load time 70 ms
Start 200 ms
Risk FOUT — text flashes from fallback to web font
normal.woff2 woff2 swap
Size 21 KB
Load time 92 ms
Start 201 ms
Risk FOUT — text flashes from fallback to web font
normal.woff2 woff2 swap
Size 21 KB
Load time 93 ms
Start 201 ms
Risk FOUT — text flashes from fallback to web font
normal.woff2 woff2 swap
Size 20 KB
Load time 93 ms
Start 201 ms
Risk FOUT — text flashes from fallback to web font
normal.woff2 woff2 swap
Size 14 KB
Load time 87 ms
Start 202 ms
Risk FOUT — text flashes from fallback to web font
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 ~2 KB and ~4 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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
1
preload
dns-prefetch
1
prefetch

2 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
36 requests over 1067ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.2 s LCP 4.5 shttps://thehackernews.com// https://thehackernews.com/ — 302 — 194 B — 72 ms — h2https://thehackernews.com/?m=1/?m=1 https://thehackernews.com/?m=1 — 200 — 47.2 KiB — 39 ms — h2https://thehackernews.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js/cdn-cgi/scripts/7d0fa10a/cloudflar... https://thehackernews.com/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js — 200 — 4.0 KiB — 24 ms — h3data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA1IAAABdCAMAAACYRqd9AAAABGdBTUEAALGPC/xhBQAAAAFzUkdCA…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAA1IAAABdCAMAAACYRqd9AAAABGdBTUEAALGPC/xhBQAAAAFzUkdCA… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA3M…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA3M… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyN…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyN… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA2M…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA2M… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAzN…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAzN… — 200 — 0 B — 0 ms — datadata:image/svg+xml;base64,PHN2ZyAgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiAgd2lkdGg9IjI0IiAga…data:image/svg+xml;base64,PHN2ZyAge... data:image/svg+xml;base64,PHN2ZyAgeG1sbnM9Imh0dHA6Ly93d3cudzMub3JnLzIwMDAvc3ZnIiAgd2lkdGg9IjI0IiAga… — 200 — 0 B — 0 ms — datadata:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAQCAQAAABuQZ3IAAAAiUlEQVQYlVXQsQpBARQG4CMlSXkBo…data:image/png;base64,iVBORw0KGgoAA... data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAQCAQAAABuQZ3IAAAAiUlEQVQYlVXQsQpBARQG4CMlSXkBo… — 200 — 0 B — 0 ms — datadata:application/font-woff;base64,d09GRgABAAAAAB3gAA8AAAAALxQAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABHU1VCA…data:application/font-woff;base64,d... data:application/font-woff;base64,d09GRgABAAAAAB3gAA8AAAAALxQAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAABHU1VCA… — 200 — 7.5 KiB — 64 ms — datahttps://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/400/normal.woff2/cf-fonts/s/roboto/5.0.11/latin/400... https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/400/normal.woff2 — 200 — 20.3 KiB — 70 ms — h3https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/500/normal.woff2/cf-fonts/s/roboto/5.0.11/latin/500... https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/500/normal.woff2 — 200 — 20.7 KiB — 92 ms — h3https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/700/normal.woff2/cf-fonts/s/roboto/5.0.11/latin/700... https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/700/normal.woff2 — 200 — 20.7 KiB — 93 ms — h3https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/900/normal.woff2/cf-fonts/s/roboto/5.0.11/latin/900... https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin/900/normal.woff2 — 200 — 20.4 KiB — 93 ms — h3https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin-ext/400/normal.woff2/cf-fonts/s/roboto/5.0.11/latin-ext... https://thehackernews.com/cf-fonts/s/roboto/5.0.11/latin-ext/400/normal.woff2 — 200 — 13.6 KiB — 87 ms — h3https://thehackernews.com/manifest.json/manifest.json https://thehackernews.com/manifest.json — 200 — 545 B — 45 ms — h3https://files.thehackernews.com/assets/f.min.js?v=59&i=6files.thehackernews.com/assets/f.mi... https://files.thehackernews.com/assets/f.min.js?v=59&i=6 — 200 — 8.8 KiB — 74 ms — h2https://files.thehackernews.com/assets/fonts.jsfiles.thehackernews.com/assets/font... https://files.thehackernews.com/assets/fonts.js — 200 — 1.5 KiB — 72 ms — h2https://www.googletagmanager.com/gtag/js?id=G-ZDZCZPGJ7Nwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-ZDZCZPGJ7N — 200 — 176.6 KiB — 172 ms — h2https://thehackernews.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://thehackernews.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 223 B — 25 ms — h3https://thehackernews.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js?/cdn-cgi/challenge-platform/h/b/scr... https://thehackernews.com/cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/main.js? 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h2https://www.google.es/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&tid=G-ZDZCZPGJ7N&cid=1942706007.1776813634&gtm=45je64k0h2v883471272za200zd883471272&rcb=6&aip=1&dma=1&dma_cps=a&gcs=G111&gcd=13t3t3Z2t5l1&npa=0&frm=0&tag_exp=0~115938466~115938468~117266400~118128923~118463261&z=619081504www.google.es/ads/ga-audiences?v=1&... https://www.google.es/ads/ga-audiences?v=1&t=sr&slf_rd=1&_r=4&tid=G-ZDZCZPGJ7N&cid=1942706007.1776813634&gtm=45je64k0h2v883471272za200zd883471272&rcb=6&aip=1&dma=1&dma_cps=a&gcs=G111&gcd=13t3t3Z2t5l1&npa=0&frm=0&tag_exp=0~115938466~115938468~117266400~118128923~118463261&z=619081504 — 200 — 408 B — 80 ms — h2https://thehackernews.com/ga/n/ga/n https://thehackernews.com/ga/n — 204 — 201 B — 218 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
29% of JavaScript execution is third-party
First-party Third-party 733ms · 185KB · €12/mo
Google Tag Manager
Tag Manager
Costly
Execution 319ms
Transfer 177 KB
Unused 37%
Monthly Cost €5/mo
Unattributable
Other
Costly
Execution 220ms
Transfer 0 KB
Monthly Cost €4/mo
files.thehackernews.com
Other
Optional
Execution 194ms
Transfer 9 KB
Monthly Cost €3/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 319ms and costs ~€5/month
  • Unattributable adds 220ms and costs ~€4/month

Google Tag Manager takes 319ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

Unattributable takes 220ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

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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