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https://sardar-ak-008.github.io/Portfolio-Sardar-AK/

Performance

· 25 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
89
GRADE
B
FIX
2
REVIEW
5
PASS
16
INFO
2

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

Mobile Desktop
80
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
98
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
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.

2.94 s

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

2.94 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.

0.196

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

3.15 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.

2.94 s

Page Load Progression

448 ms
896 ms
1.3 s
1.8 s
2.2 s
2.7 s
3.1 s
3.6 s
Checks
25
16 PASS 5 REVIEW 2 FIX
D
Third-Party Impact
Action
70% third-party, 0 ms blocking
FIX
70% third-party, 0 ms blocking
Warning::
Third-party code accounts for 70% of page weight (60.3 KiB of 85.9 KiB)
Info::
Third-party blocking time is low (0 ms)
30%
70%
First-party Third-party
F
JS Execution Cost
Action
4058ms total JS execution
FIX
4058ms total JS execution
Warning::
https://sardar-ak-008.github.io/Portfolio-Sardar-A...: 3893ms CPU time
Info::
Unattributable: 165ms CPU time

Main Thread Breakdown

Other 54% Style & Layout 27% Script Evaluation 9% Rendering 9%
ScriptTotalScriptingParse/CompileParty
https://sardar-ak-008.github.io/Portfolio-Sardar-AK/3893ms378ms6ms1st
Unattributable165ms4ms0ms1st
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
B
Document Compression
Document response uses gzip; brotli would be ~20% smaller
REVIEW
Document response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
B
Main HTML Cache-Control
Main HTML max-age=600 (~10min)
REVIEW
Main HTML max-age=600 (~10min)
Info::
Main HTML cached for 10 minutes -- mild staleness risk
Got: max-age=600
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

A+
Page Weight Budget
86 KB transferred, 7 requests
PASS
86 KB transferred, 7 requests
Info::
Page weighs 174 KB (86 KB transferred)
Info::
7 HTTP requests
Info::
Estimated 0.02 g CO2 per page load
86 KB / 2.4 MB budget
86 KB transferred
7 requests
0.02 g CO2 per page load
Fonts 58.9 KiB 69%
HTML 25.7 KiB 30%
CSS 1.3 KiB 2%
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
No images on this page
PASS
No images on this page
Info::
No images on this page
0 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+
Font Loading
5 fonts (59 KB)
PASS
5 fonts (59 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

59 KB total

Render-blocking

0

of 5

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 FCP 2.9 s LCP 2.9 shttps://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2V8mDoQDjQSkFtoMM3T6r8E7... https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2 — 21.8 KiB — 42 ms — font-display: swaphttps://fonts.gstatic.com/s/orbitron/v35/yMJRMIlzdpvBhQQL_Qq7dy1biN15.woff2yMJRMIlzdpvBhQQL_Qq7dy1... https://fonts.gstatic.com/s/orbitron/v35/yMJRMIlzdpvBhQQL_Qq7dy1biN15.woff2 — 11.5 KiB — 41 ms — font-display: swaphttps://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pbYF_OreefkkbIx.woff2LDI2apCSOBg7S-QT7pbYF_O... https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pbYF_OreefkkbIx.woff2 — 9.2 KiB — 34 ms — font-display: swaphttps://fonts.gstatic.com/s/sharetechmono/v16/J7aHnp1uDWRBEqV98dVQztYldFcLowEFA87Heg.woff2J7aHnp1uDWRBEqV98dVQztY... https://fonts.gstatic.com/s/sharetechmono/v16/J7aHnp1uDWRBEqV98dVQztYldFcLowEFA87Heg.woff2 — 7.3 KiB — 43 ms — font-display: swaphttps://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pa8FvOreefkkbIx.woff2LDI2apCSOBg7S-QT7pa8FvO... https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pa8FvOreefkkbIx.woff2 — 9.1 KiB — 43 ms — font-display: swap
V8mDoQDjQSkFtoMM3T6r8E7... woff2 swap
Size 22 KB
Load time 42 ms
Start 217 ms
Risk FOUT — text flashes from fallback to web font
yMJRMIlzdpvBhQQL_Qq7dy1... woff2 swap
Size 12 KB
Load time 41 ms
Start 217 ms
Risk FOUT — text flashes from fallback to web font
LDI2apCSOBg7S-QT7pbYF_O... woff2 swap
Size 9 KB
Load time 34 ms
Start 217 ms
Risk FOUT — text flashes from fallback to web font
J7aHnp1uDWRBEqV98dVQztY... woff2 swap
Size 7 KB
Load time 43 ms
Start 218 ms
Risk FOUT — text flashes from fallback to web font
LDI2apCSOBg7S-QT7pa8FvO... woff2 swap
Size 9 KB
Load time 43 ms
Start 218 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+
JS Bundles
No JavaScript
PASS
No JavaScript
Info::
No JavaScript bundles
No JavaScript files loaded.
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
2
preload
—
dns-prefetch
—
prefetch
—

2 resource hints configured

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+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: 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::
Both `ETag` and `Last-Modified` present -- efficient revalidation supported
The page returns both `ETag` (content hash) and `Last-Modified` (timestamp) headers. Browsers can issue conditional GETs with `If-None-Match` or `If-Modified-Since`; the server returns 304 Not Modified for unchanged content, saving bandwidth. ETag is the more reliable of the two (timestamps fail in DST transitions and clock skew).
A
Page Weight Inventory
7 resources · 86 KB · 0 KB savings available
PASS
7 resources · 86 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 86 KB
Warning::
6 third-party resources (70% of weight)
7 resources · 85.9 KiB · 6 third-party Within 1MB page-weight target
Font 69% · 58.9 KiB
Document 30% · 25.7 KiB
CSS 2% · 1.3 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
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
Total JS execution time is 4.1 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
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+
HTTP Caching
max-age=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
Cache-Control header is set
Got: max-age=600
Info::
Effective TTL: 10 minutes (max-age=600)
Info::
ETag present — enables conditional (304) responses
Info::
Last-Modified header present
Cache-Control

max-age=600

DirectiveValueMeaning
max-age600Cache for 10 minutes
Effective TTL: 600 seconds
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
7 requests over 261ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 2.9 s LCP 2.9 shttps://sardar-ak-008.github.io/Portfolio-Sardar-AK//Portfolio-Sardar-AK/ https://sardar-ak-008.github.io/Portfolio-Sardar-AK/ — 200 — 25.7 KiB — 14 ms — h2https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;800;900&family=Rajdhani:wght@500;600;700&family=Share+Tech+Mono&family=Space+Grotesk:wght@300;400;500;600;700&display=swapfonts.googleapis.com/css2?family=Or... https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;800;900&family=Rajdhani:wght@500;600;700&family=Share+Tech+Mono&family=Space+Grotesk:wght@300;400;500;600;700&display=swap — 200 — 1.3 KiB — 89 ms — h2https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2fonts.gstatic.com/s/spacegrotesk/v2... https://fonts.gstatic.com/s/spacegrotesk/v22/V8mDoQDjQSkFtoMM3T6r8E7mPbF4C_k3HqU.woff2 — 200 — 21.8 KiB — 42 ms — h3https://fonts.gstatic.com/s/orbitron/v35/yMJRMIlzdpvBhQQL_Qq7dy1biN15.woff2fonts.gstatic.com/s/orbitron/v35/yM... https://fonts.gstatic.com/s/orbitron/v35/yMJRMIlzdpvBhQQL_Qq7dy1biN15.woff2 — 200 — 11.5 KiB — 41 ms — h3https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pbYF_OreefkkbIx.woff2fonts.gstatic.com/s/rajdhani/v17/LD... https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pbYF_OreefkkbIx.woff2 — 200 — 9.2 KiB — 34 ms — h3https://fonts.gstatic.com/s/sharetechmono/v16/J7aHnp1uDWRBEqV98dVQztYldFcLowEFA87Heg.woff2fonts.gstatic.com/s/sharetechmono/v... https://fonts.gstatic.com/s/sharetechmono/v16/J7aHnp1uDWRBEqV98dVQztYldFcLowEFA87Heg.woff2 — 200 — 7.3 KiB — 43 ms — h3https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pa8FvOreefkkbIx.woff2fonts.gstatic.com/s/rajdhani/v17/LD... https://fonts.gstatic.com/s/rajdhani/v17/LDI2apCSOBg7S-QT7pa8FvOreefkkbIx.woff2 — 200 — 9.1 KiB — 43 ms — h3
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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