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https://multitoolhub.pages.dev

Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
4

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

Mobile Desktop
100
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.

337 ms

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

337 ms

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.

337 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.

337 ms

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
23
15 PASS 3 REVIEW 1 FIX
D
Third-Party Impact
Action
83% third-party, 0 ms blocking
FIX
83% third-party, 0 ms blocking
Warning::
Third-party code accounts for 83% of page weight (178.9 KiB of 215.7 KiB)
Info::
Third-party blocking time is low (0 ms)
17%
83%
First-party Third-party
C
JS Bundles
Action
5 scripts, 74 KB unused
REVIEW
5 scripts, 74 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-7T6T...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://multitoolhub.pages.dev/assets/js/common.js: unminified — 4 KB could be saved
Warning::
https://multitoolhub.pages.dev/assets/js/main.js: unminified — 4 KB could be saved
Info::
Total unused JavaScript: 74 KB
74 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-7T6T7H7RJ0177 KB74 KB (42%)✓3rd
https://multitoolhub.pages.dev/assets/js/common.js9 KB—✗1st
https://multitoolhub.pages.dev/assets/js/main.js7 KB—✗1st
https://bauval.org/22/b9ee7cab97dbebbd1683470f774606bf0 KB—✓3rd
https://bauval.org/22/df93529ad0dc7bc15ab6488b14b470861 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, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
A+
Page Weight Budget
216 KB transferred, 14 requests
PASS
216 KB transferred, 14 requests
Info::
Page weighs 659 KB (216 KB transferred)
Info::
14 HTTP requests
Info::
Estimated 0.04 g CO2 per page load
216 KB / 2.4 MB budget
216 KB transferred
14 requests
0.04 g CO2 per page load
JavaScript 194.3 KiB 90%
HTML 10.5 KiB 5%
CSS 8.6 KiB 4%
Other 1.0 KiB 0%
Images 789 B 0%
Other 553 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
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Info::
All images are well-optimized
1 images 1 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
188ms total JS execution
PASS
188ms total JS execution
Info::
https://multitoolhub.pages.dev/: 69ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-7T6T...: 68ms CPU time
Info::
Unattributable: 50ms CPU time
Info::
Third-party scripts: 68ms (36% of total)

Main Thread Breakdown

Script Evaluation 32% Other 27% Style & Layout 21% Rendering 7% Script Parsing & Compilation 6% Garbage Collection 4%
ScriptTotalScriptingParse/CompileParty
https://multitoolhub.pages.dev/69ms2ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-7T6T7H7RJ068ms55ms11ms3rd
Unattributable50ms2ms0ms1st
A+
Font Loading
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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+
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, must-revalidate
A
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: br` but has no `Vary` header. Without `Vary: Accept-Encoding`, intermediary caches (corporate proxies, ISP caches) may serve the compressed variant to clients that didn't send the matching `Accept-Encoding` -- the client sees garbled bytes. Add `Vary: Accept-Encoding` whenever the response is conditionally compressed.
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
14 resources · 216 KB · 74 KB savings available
PASS
14 resources · 216 KB · 74 KB savings available
Info::
Within 1MB page-weight target
Got: 216 KB
Info::
~74 KB of savings available
Warning::
4 third-party resources (83% of weight)
14 resources · 215.7 KiB · 4 third-party Within 1MB page-weight target
JavaScript 90% · 194.3 KiB
Document 5% · 10.5 KiB
CSS 4% · 8.6 KiB
Other 1% · 1.6 KiB
Image 0% · 789 B

~74.1 KiB of savings available

Remove unused JavaScript: 74.1 KiB
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

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
14 requests over 473ms
INFO
0 ms 200 ms 400 ms FCP 337 ms LCP 337 mshttps://multitoolhub.pages.dev// https://multitoolhub.pages.dev/ — 200 — 8.9 KiB — 93 ms — h3https://multitoolhub.pages.dev/assets/css/style.css/assets/css/style.css https://multitoolhub.pages.dev/assets/css/style.css — 200 — 8.6 KiB — 54 ms — h3https://www.googletagmanager.com/gtag/js?id=G-7T6T7H7RJ0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-7T6T7H7RJ0 — 200 — 177.3 KiB — 159 ms — h2https://multitoolhub.pages.dev/assets/js/common.js/assets/js/common.js https://multitoolhub.pages.dev/assets/js/common.js — 200 — 8.5 KiB — 85 ms — h3https://multitoolhub.pages.dev/assets/js/main.js/assets/js/main.js https://multitoolhub.pages.dev/assets/js/main.js — 200 — 7.4 KiB — 61 ms — h3https://multitoolhub.pages.dev/ads/300x250.html/ads/300x250.html https://multitoolhub.pages.dev/ads/300x250.html — 308 — 529 B — 36 ms — h3https://multitoolhub.pages.dev/ads/728x90.html/ads/728x90.html https://multitoolhub.pages.dev/ads/728x90.html — 308 — 530 B — 78 ms — h3https://multitoolhub.pages.dev/ads/300x250/ads/300x250 https://multitoolhub.pages.dev/ads/300x250 — 200 — 840 B — 153 ms — h3https://multitoolhub.pages.dev/assets/icons/favicon.svg/assets/icons/favicon.svg https://multitoolhub.pages.dev/assets/icons/favicon.svg — 200 — 789 B — 53 ms — h3https://multitoolhub.pages.dev/ads/728x90/ads/728x90 https://multitoolhub.pages.dev/ads/728x90 — 200 — 841 B — 45 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-7T6T7H7RJ0&gtm=45je6ar1v9267782338za208zd9267782338xf1&_p=1793288031474&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1733964979.1793288032&frm=0&ngs=1&pscdl=noapi&rcb=18&sr=800x600&uaa=x86&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.73&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938469~118897920~118897930~120213116~120385422~120412528~120469145~120469153~121246026~121246034~123620775&sid=1793288031&sct=1&seg=0&dl=https%3A%2F%2Fmultitoolhub.pages.dev%2F&dt=MultiTool%20%E2%80%94%2058%20Free%20Online%20Tools%20for%20Text%2C%20Images%2C%20PDFs%20%26%20Code&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=340region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-7T6T7H7RJ0&gtm=45je6ar1v9267782338za208zd9267782338xf1&_p=1793288031474&gcd=13l3l3l2l1l1&npa=1&dma_cps=a&dma=1&cid=1733964979.1793288032&frm=0&ngs=1&pscdl=noapi&rcb=18&sr=800x600&uaa=x86&uab=64&uafvl=Not%253AA-Brand%3B8.0.0.0%7CChromium%3B156.0.8078.73&uam=&uamb=0&uap=macOS&uapv=10.15.7&uaw=0&ul=en-us&_s=1&tag_exp=115938466~115938469~118897920~118897930~120213116~120385422~120412528~120469145~120469153~121246026~121246034~123620775&sid=1793288031&sct=1&seg=0&dl=https%3A%2F%2Fmultitoolhub.pages.dev%2F&dt=MultiTool%20%E2%80%94%2058%20Free%20Online%20Tools%20for%20Text%2C%20Images%2C%20PDFs%20%26%20Code&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=340 — 204 — 553 B — 77 ms — h2https://bauval.org/22/b9ee7cab97dbebbd1683470f774606bfbauval.org/22/b9ee7cab97dbebbd16834... https://bauval.org/22/b9ee7cab97dbebbd1683470f774606bf — 403 — 475 B — 116 ms — h2https://bauval.org/22/df93529ad0dc7bc15ab6488b14b47086bauval.org/22/df93529ad0dc7bc15ab64... https://bauval.org/22/df93529ad0dc7bc15ab6488b14b47086 — 403 — 605 B — 67 ms — h2https://multitoolhub.pages.dev/assets/icons/favicon.svg/assets/icons/favicon.svg https://multitoolhub.pages.dev/assets/icons/favicon.svg — 200 — 0 B — 1 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
36% of JavaScript execution is third-party
First-party Third-party 68ms · 177KB · $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 68ms
Transfer 177 KB
Unused 42%
Monthly Cost $1/mo

How third-party costs are calculated

Image Optimization
2 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

2

Total Size

0 KB

1 missing lazy loading
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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