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Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
0
REVIEW
6
PASS
17
INFO
4

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

Mobile Desktop
92
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.

1.03 s

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

1.03 s

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

328 ms

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

0.048

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

1.21 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.

4.42 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
27
17 PASS 6 REVIEW
B
Third-Party Impact
46% third-party, 0 ms blocking
REVIEW
46% third-party, 0 ms blocking
Info::
Third-party code accounts for 46% of page weight (186.5 KiB of 402.6 KiB)
Info::
Third-party blocking time is low (0 ms)
54%
46%
First-party Third-party
B
Image Optimization
7 images, 0 KB saveable
REVIEW
7 images, 0 KB saveable
Info::
All images are well-optimized
7 images 104 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1080ms total JS execution
REVIEW
1080ms total JS execution
Warning::
https://techydonut.com/js/home.js: 357ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2QXS...: 292ms CPU time
Warning::
https://techydonut.com/: 267ms CPU time
Info::
Unattributable: 165ms CPU time
Info::
Third-party scripts: 292ms (27% of total)

Main Thread Breakdown

Script Evaluation 53% Other 19% Style & Layout 17% Script Parsing & Compilation 5% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://techydonut.com/js/home.js357ms293ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-2QXSQEMLL9292ms236ms53ms3rd
https://techydonut.com/267ms13ms1ms1st
Unattributable165ms10ms0ms1st
B
JS Bundles
4 scripts, 75 KB unused
REVIEW
4 scripts, 75 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2QXS...: 75 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 75 KB
75 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-2QXSQEMLL9178 KB75 KB (42%)✓3rd
https://techydonut.com/js/common.js2 KB—✓1st
https://techydonut.com/js/home.js1 KB—✓1st
https://claritasanalytics.com/script.js?CAID=CAId-TeDo-Y26M06-ERT913S6 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

B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
B
HTTP Caching
public, max-age=0, s-maxage=300, must-revalidate
REVIEW
public, max-age=0, s-maxage=300, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, s-maxage=300, must-revalidate
Info::
CDN TTL: 5 minutes (s-maxage=300)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, s-maxage=300, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
s-maxage300CDN caches for 5 minutes
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
403 KB transferred, 23 requests
PASS
403 KB transferred, 23 requests
Info::
Page weighs 810 KB (403 KB transferred)
Info::
23 HTTP requests
Info::
Estimated 0.08 g CO2 per page load
403 KB / 2.4 MB budget
403 KB transferred
23 requests
0.08 g CO2 per page load
JavaScript 187.2 KiB 46%
Images 103.7 KiB 26%
Fonts 85.6 KiB 21%
Other 9.5 KiB 2%
HTML 7.5 KiB 2%
CSS 6.1 KiB 2%
Other 1.6 KiB 0%
Other 1.5 KiB 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+
Font Loading
2 fonts (86 KB)
PASS
2 fonts (86 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

86 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 1.0 s LCP 1.0 shttps://techydonut.com/common_files/fonts/bebas_neue.woff2bebas_neue.woff2 https://techydonut.com/common_files/fonts/bebas_neue.woff2 — 13.9 KiB — 131 ms — font-display: swaphttps://techydonut.com/common_files/fonts/inter_normal.woff2inter_normal.woff2 https://techydonut.com/common_files/fonts/inter_normal.woff2 — 71.7 KiB — 139 ms — font-display: swap
bebas_neue.woff2 woff2 swap
Size 14 KB
Load time 131 ms
Start 148 ms
Risk FOUT — text flashes from fallback to web font
inter_normal.woff2 woff2 swap
Size 72 KB
Load time 139 ms
Start 150 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)
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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
—
preload
5
dns-prefetch
—
prefetch
—

5 resource hints configured

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Document Compression
Document response uses brotli
PASS
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
PASS
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, s-maxage=300, must-revalidate
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding,Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A
Page Weight Inventory
23 resources · 403 KB · 75 KB savings available
PASS
23 resources · 403 KB · 75 KB savings available
Info::
Within 1MB page-weight target
Got: 403 KB
Info::
~75 KB of savings available
Warning::
7 third-party resources (46% of weight)
23 resources · 402.6 KiB · 7 third-party Within 1MB page-weight target
JavaScript 46% · 187.2 KiB
Image 28% · 113.2 KiB
Font 21% · 85.6 KiB
Document 2% · 7.9 KiB
CSS 2% · 6.1 KiB
Other 1% · 2.7 KiB

~74.5 KiB of savings available

Remove unused JavaScript: 74.5 KiB
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+
JavaScript Blocking
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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: Hostinger

Asset Compression
No text asset hosts to measure
INFO
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall
23 requests over 2601ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.0 s LCP 1.0 shttps://techydonut.com// https://techydonut.com/ — 200 — 7.5 KiB — 138 ms — h2https://techydonut.com/common_files/fonts/bebas_neue.woff2/common_files/fonts/bebas_neue.woff... https://techydonut.com/common_files/fonts/bebas_neue.woff2 — 200 — 13.9 KiB — 131 ms — h2https://techydonut.com/common_files/fonts/inter_normal.woff2/common_files/fonts/inter_normal.wo... https://techydonut.com/common_files/fonts/inter_normal.woff2 — 200 — 71.7 KiB — 139 ms — h2https://techydonut.com/media/blog_images/cybersecurity/featured/what-is-php-shell-vulnerability-and-php2shell-explained.avif/media/blog_images/cybersecurity/fe... https://techydonut.com/media/blog_images/cybersecurity/featured/what-is-php-shell-vulnerability-and-php2shell-explained.avif — 200 — 89.6 KiB — 152 ms — h2https://techydonut.com/css/main.css?v=1793422272/css/main.css?v=1793422272 https://techydonut.com/css/main.css?v=1793422272 — 200 — 5.2 KiB — 122 ms — h2https://techydonut.com/css/mobile.css?v=1793422272/css/mobile.css?v=1793422272 https://techydonut.com/css/mobile.css?v=1793422272 — 200 — 890 B — 122 ms — h2https://techydonut.com/media/logo/techy-donut.avif/media/logo/techy-donut.avif https://techydonut.com/media/logo/techy-donut.avif — 200 — 5.4 KiB — 152 ms — h2https://techydonut.com/js/common.js/js/common.js https://techydonut.com/js/common.js — 200 — 2.0 KiB — 98 ms — h2https://techydonut.com/js/home.js/js/home.js https://techydonut.com/js/home.js — 200 — 1.5 KiB — 97 ms — h2https://claritasanalytics.com/script.js?CAID=CAId-TeDo-Y26M06-ERT913Sclaritasanalytics.com/script.js?CAI... https://claritasanalytics.com/script.js?CAID=CAId-TeDo-Y26M06-ERT913S — 200 — 6.2 KiB — 192 ms — h2https://techydonut.com/media/other/search.svg/media/other/search.svg https://techydonut.com/media/other/search.svg — 200 — 882 B — 99 ms — h3https://techydonut.com/media/other/loader.svg/media/other/loader.svg https://techydonut.com/media/other/loader.svg — 200 — 802 B — 95 ms — h3https://claritasanalytics.com/action/add/api_hit_data.phpclaritasanalytics.com/action/add/ap... https://claritasanalytics.com/action/add/api_hit_data.php — 200 — 555 B — 127 ms — h2https://techydonut.com/media/social/linkedin.svg/media/social/linkedin.svg https://techydonut.com/media/social/linkedin.svg — 200 — 1020 B — 96 ms — h3https://techydonut.com/media/social/instagram.svg/media/social/instagram.svg https://techydonut.com/media/social/instagram.svg — 200 — 1.6 KiB — 99 ms — h3https://claritasanalytics.com/ip_host.phpclaritasanalytics.com/ip_host.php https://claritasanalytics.com/ip_host.php — 200 — 608 B — 261 ms — h3https://techydonut.com// https://techydonut.com/ — 200 — 379 B — 18 ms — h3https://claritasanalytics.com/action/add/event_flow_data.phpclaritasanalytics.com/action/add/ev... https://claritasanalytics.com/action/add/event_flow_data.php — 200 — 554 B — 141 ms — h2https://techydonut.com/media/favicon/favicon.ico/media/favicon/favicon.ico https://techydonut.com/media/favicon/favicon.ico — 200 — 9.5 KiB — 103 ms — h3https://techydonut.com/media/blog_images/coding-interview-programs/banner/.avif/media/blog_images/coding-interview... https://techydonut.com/media/blog_images/coding-interview-programs/banner/.avif — 404 — 4.4 KiB — 100 ms — h3https://claritasanalytics.com/action/add/data.phpclaritasanalytics.com/action/add/da... https://claritasanalytics.com/action/add/data.php — 200 — 527 B — 137 ms — h3https://www.googletagmanager.com/gtag/js?id=G-2QXSQEMLL9www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-2QXSQEMLL9 — 200 — 177.6 KiB — 283 ms — h2https://region1.google-analytics.com/g/collect?v=2&tid=G-2QXSQEMLL9&gtm=45je6as1v9225807942za208zd9225807942xf1&_p=1793424462335&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1144785923.1793424465&frm=0&ngs=1&pscdl=noapi&rcb=15&sr=412x823&uaa=&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.73&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938468~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034~123620775~123691370~123814185&sid=1793424464&sct=1&seg=0&dl=https%3A%2F%2Ftechydonut.com%2F&dt=Simple%20Tech%20Guides%2C%20Software%20Testing%20Tutorials%20%7C%20Techy%20Donut&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=2514region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-2QXSQEMLL9&gtm=45je6as1v9225807942za208zd9225807942xf1&_p=1793424462335&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1144785923.1793424465&frm=0&ngs=1&pscdl=noapi&rcb=15&sr=412x823&uaa=&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.73&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938468~118897920~118897930~120213116~120385422~120469145~120469153~121246026~121246034~123620775~123691370~123814185&sid=1793424464&sct=1&seg=0&dl=https%3A%2F%2Ftechydonut.com%2F&dt=Simple%20Tech%20Guides%2C%20Software%20Testing%20Tutorials%20%7C%20Techy%20Donut&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=2514 — 204 — 547 B — 86 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
27% of JavaScript execution is third-party
First-party Third-party 292ms · 178KB · $5/mo
Google Tag Manager
Tag Manager
Costly
Execution 292ms
Transfer 178 KB
Unused 42%
Monthly Cost $5/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 292ms and costs ~$5/month

Google Tag Manager takes 292ms 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

Image Optimization
9 images, 96 KB total, 87 KB wasted
INFO

Image Optimization Audit

Total Images

9

Total Size

96 KB

Oversized

2

Wasted

87 KB

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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