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https://zorlya.com

Performance

· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
4
PASS
14
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.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

485 ms

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

577 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.

485 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.

577 ms

Page Load Progression

421 ms
843 ms
1.3 s
1.7 s
2.1 s
2.5 s
3.0 s
3.4 s
Checks
23
14 PASS 4 REVIEW 1 FIX
D
Third-Party Impact
Action
65% third-party, 0 ms blocking
FIX
65% third-party, 0 ms blocking
Warning::
Third-party code accounts for 65% of page weight (177.7 KiB of 274.2 KiB)
Info::
Third-party blocking time is low (0 ms)
35%
65%
First-party Third-party
B
JS Bundles
6 scripts, 74 KB unused
REVIEW
6 scripts, 74 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-T3TS...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
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-T3TS73ZE34177 KB74 KB (42%)✓3rd
https://zorlya.com/_astro/ThemeSwitch.astro_astro_type_script_index_0_lang.fie_U6yy.js2 KB—✓1st
https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_0_lang.GNu74odx.js2 KB—✓1st
https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_1_lang.DFOgMcTo.js2 KB—✓1st
https://zorlya.com/_astro/Site.astro_astro_type_script_index_0_lang.czNW5oLp.js4 KB—✓1st
https://zorlya.com/_astro/index.astro_astro_type_script_index_0_lang.BFRYtOpN.js6 KB—✓1st

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

Green Hosting

No green hosting detected

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
274 KB transferred, 14 requests
PASS
274 KB transferred, 14 requests
Info::
Page weighs 775 KB (274 KB transferred)
Info::
14 HTTP requests
Info::
Estimated 0.06 g CO2 per page load
274 KB / 2.4 MB budget
274 KB transferred
14 requests
0.06 g CO2 per page load
JavaScript 192.1 KiB 70%
HTML 42.1 KiB 15%
Fonts 19.3 KiB 7%
Other 9.5 KiB 3%
Images 8.9 KiB 3%
Other 1.8 KiB 1%
Other 544 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
2 images, 0 KB saveable
PASS
2 images, 0 KB saveable
Info::
All images are well-optimized
2 images 9 KB
0 oversized -0 KB
2 legacy format
0 missing dimensions CLS risk
A+
JS Execution Cost
394ms total JS execution
PASS
394ms total JS execution
Warning::
https://zorlya.com/: 325ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-T3TS...: 69ms CPU time
Info::
Third-party scripts: 69ms (18% of total)

Main Thread Breakdown

Other 29% Rendering 26% Style & Layout 23% Script Evaluation 17%
ScriptTotalScriptingParse/CompileParty
https://zorlya.com/325ms10ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-T3TS73ZE3469ms55ms11ms3rd
A+
Font Loading
1 fonts (19 KB)
PASS
1 fonts (19 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

19 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 485 ms LCP 577 mshttps://zorlya.com/_astro/Zorlya-Brand.DDAbj3c9.woff2Zorlya-Brand.DDAbj3c9.w... https://zorlya.com/_astro/Zorlya-Brand.DDAbj3c9.woff2 — 19.3 KiB — 67 ms — font-display: swap
Zorlya-Brand.DDAbj3c9.w... woff2 swap
Size 19 KB
Load time 67 ms
Start 110 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
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 · 274 KB · 74 KB savings available
PASS
14 resources · 274 KB · 74 KB savings available
Info::
Within 1MB page-weight target
Got: 274 KB
Info::
~74 KB of savings available
Warning::
2 third-party resources (65% of weight)
14 resources · 274.2 KiB · 2 third-party Within 1MB page-weight target
JavaScript 70% · 192.1 KiB
Document 15% · 42.1 KiB
Font 7% · 19.3 KiB
Image 7% · 18.5 KiB
Other 1% · 2.3 KiB

~73.6 KiB of savings available

Remove unused JavaScript: 73.6 KiB
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 1058ms
INFO
0 ms 500 ms 1.0 s FCP 485 ms LCP 577 mshttps://zorlya.com// https://zorlya.com/ — 200 — 42.1 KiB — 108 ms — h3https://zorlya.com/_astro/Zorlya-Brand.DDAbj3c9.woff2/_astro/Zorlya-Brand.DDAbj3c9.woff2 https://zorlya.com/_astro/Zorlya-Brand.DDAbj3c9.woff2 — 200 — 19.3 KiB — 67 ms — h3https://zorlya.com/logo.svg/logo.svg https://zorlya.com/logo.svg — 200 — 4.5 KiB — 66 ms — h3https://zorlya.com/logo-dark.svg/logo-dark.svg https://zorlya.com/logo-dark.svg — 200 — 4.5 KiB — 71 ms — h3https://zorlya.com/_astro/ThemeSwitch.astro_astro_type_script_index_0_lang.fie_U6yy.js/_astro/ThemeSwitch.astro_astro_typ... https://zorlya.com/_astro/ThemeSwitch.astro_astro_type_script_index_0_lang.fie_U6yy.js — 200 — 1.8 KiB — 59 ms — h3https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_0_lang.GNu74odx.js/_astro/SiteHeader.astro_astro_type... https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_0_lang.GNu74odx.js — 200 — 2.1 KiB — 67 ms — h3https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_1_lang.DFOgMcTo.js/_astro/SiteHeader.astro_astro_type... https://zorlya.com/_astro/SiteHeader.astro_astro_type_script_index_1_lang.DFOgMcTo.js — 200 — 1.7 KiB — 66 ms — h3https://zorlya.com/_astro/Site.astro_astro_type_script_index_0_lang.czNW5oLp.js/_astro/Site.astro_astro_type_scrip... https://zorlya.com/_astro/Site.astro_astro_type_script_index_0_lang.czNW5oLp.js — 200 — 3.5 KiB — 64 ms — h3https://zorlya.com/_astro/index.astro_astro_type_script_index_0_lang.BFRYtOpN.js/_astro/index.astro_astro_type_scri... https://zorlya.com/_astro/index.astro_astro_type_script_index_0_lang.BFRYtOpN.js — 200 — 5.7 KiB — 64 ms — h3https://zorlya.com/manifest.webmanifest/manifest.webmanifest https://zorlya.com/manifest.webmanifest — 200 — 1.8 KiB — 81 ms — h3https://zorlya.com/favicon.ico/favicon.ico https://zorlya.com/favicon.ico — 200 — 3.5 KiB — 65 ms — h3https://www.googletagmanager.com/gtag/js?id=G-T3TS73ZE34www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-T3TS73ZE34 — 200 — 177.2 KiB — 142 ms — h2https://zorlya.com/icon-192.png/icon-192.png https://zorlya.com/icon-192.png — 200 — 6.0 KiB — 59 ms — h3https://region1.google-analytics.com/g/collect?v=2&tid=G-T3TS73ZE34&gtm=45je6ar1v9266823249za208zd9266823249xf1&_p=1793276424001&gcs=G100&gcd=13p3p3p2p5l1&npa=1&dma_cps=-&dma=1&cid=1646353477.1793276425&frm=0&ngs=1&pscdl=denied&rcb=8&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=115938465~115938469~118897920~118897930~120213116~120385423~120469145~120469153~121246026~121246034&sid=1793276424&sct=1&seg=0&dl=https%3A%2F%2Fzorlya.com%2F&dt=Zorlya%3A%20AI%20job%20matching%20with%20an%20explained%20score&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=993region1.google-analytics.com/g/coll... https://region1.google-analytics.com/g/collect?v=2&tid=G-T3TS73ZE34&gtm=45je6ar1v9266823249za208zd9266823249xf1&_p=1793276424001&gcs=G100&gcd=13p3p3p2p5l1&npa=1&dma_cps=-&dma=1&cid=1646353477.1793276425&frm=0&ngs=1&pscdl=denied&rcb=8&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=115938465~115938469~118897920~118897930~120213116~120385423~120469145~120469153~121246026~121246034&sid=1793276424&sct=1&seg=0&dl=https%3A%2F%2Fzorlya.com%2F&dt=Zorlya%3A%20AI%20job%20matching%20with%20an%20explained%20score&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=993 — 204 — 544 B — 65 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
18% of JavaScript execution is third-party
First-party Third-party 69ms · 177KB · €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 69ms
Transfer 177 KB
Unused 42%
Monthly Cost €1/mo

How third-party costs are calculated

Image Optimization
4 images, 12 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

4

Total Size

12 KB

3 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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