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https://www.shreekalyan.com/shreekalyan/index

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
85
GRADE
B
FIX
3
REVIEW
5
PASS
15
INFO
3

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

Mobile Desktop
48
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
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.
83
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.

3.76 s

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

42.34 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.

0.289

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

6.03 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.

42.34 s

Page Load Progression

825 ms
1.7 s
2.5 s
3.3 s
4.1 s
5.0 s
5.8 s
6.6 s
Checks
26
15 PASS 5 REVIEW 3 FIX
F
Page Weight Budget
Action
8.0 MB transferred, 18 requests
FIX
8.0 MB transferred, 18 requests
Critical::
Page weighs 8.5 MB (8.0 MB transferred)
Warning::
Images are 7.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 7.3 MB
Info::
Fonts are 326 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 326 KB
Info::
18 HTTP requests
Info::
Estimated 1.7 g CO2 per page load
8.0 MB / 2.4 MB budget
8.0 MB transferred
18 requests
1.7 g CO2 per page load
Images 7.3 MiB 92%
Fonts 325.8 KiB 4%
Other 237.4 KiB 3%
CSS 61.5 KiB 1%
JavaScript 28.4 KiB 0%
HTML 16.9 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

D
JS Execution Cost
Action
2795ms total JS execution
FIX
2795ms total JS execution
Warning::
https://www.shreekalyan.com/shreekalyan/index: 2257ms CPU time
Warning::
Unattributable: 469ms CPU time
Info::
https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/...: 69ms CPU time
Info::
Third-party scripts: 69ms (2% of total)

Main Thread Breakdown

Style & Layout 40% Other 38% Rendering 15% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.shreekalyan.com/shreekalyan/index2257ms17ms3ms1st
Unattributable469ms8ms0ms1st
https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js69ms28ms17ms3rd
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store, no-cache, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, no-cache, must-revalidate

DirectiveValueMeaning
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Warning::
https://www.shreekalyan.com/shreekalyan/assets/ima... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
5 images 7.3 MB
0 oversized -0 KB
3 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
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
Compression Algorithm
Main response uses gzip; brotli would be ~20% smaller
REVIEW
Main 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
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
Page Weight Inventory
Action
18 resources · 8.0 MB · 0 KB savings available
REVIEW
18 resources · 8.0 MB · 0 KB savings available
Warning::
Page weight 8.0 MB exceeds 1 MB target by 7.0 MB
Got: 8.0 MB Expected: ≤ 1 MB
Info::
12 third-party resources (5% of weight)
Info::
2 resources over 200KB
18 resources · 8.0 MiB · 12 third-party 7.0 MiB over 1MB target
Image 95% · 7.5 MiB
Font 4% · 325.8 KiB
CSS 1% · 61.5 KiB
JavaScript 0% · 28.4 KiB
Document 0% · 16.9 KiB
A+
Third-Party Impact
5% third-party, 0 ms blocking
PASS
5% third-party, 0 ms blocking
Info::
Third-party code accounts for 5% of page weight (409.9 KiB of 8.0 MiB)
Info::
Third-party blocking time is low (0 ms)
95%
First-party Third-party
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
4 fonts (326 KB)
PASS
4 fonts (326 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

326 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s 32.0 s 34.0 s 36.0 s 38.0 s 40.0 s 42.0 s 44.0 s FCP 3.8 s LCP 42.3 shttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-solid-900.woff2fa-solid-900.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-solid-900.woff2 — 147.3 KiB — 48 ms — font-display: swaphttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 13 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-brands-400.woff2fa-brands-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-brands-400.woff2 — 106.2 KiB — 36 ms — font-display: swaphttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-regular-400.woff2fa-regular-400.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-regular-400.woff2 — 25.0 KiB — 33 ms — font-display: swap
fa-solid-900.woff2 woff2 swap
Size 147 KB
Load time 48 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 13 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
fa-brands-400.woff2 woff2 swap
Size 106 KB
Load time 36 ms
Start 1.4 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-regular-400.woff2 woff2 swap
Size 25 KB
Load time 33 ms
Start 1.4 s
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 ~127 KB and ~254 ms

A+
JS Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://unpkg.com/aos@2.3.1/dist/aos.js5 KB—✓3rd
https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js24 KB—✓3rd
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+
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 uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-store, no-cache, 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
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+
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::
2 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A
CSS Performance Depth
1 CSS depth issue(s) detected
PASS
1 CSS depth issue(s) detected
Warning::
5 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
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

Network Waterfall
18 requests over 4270ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s 32.0 s 34.0 s 36.0 s 38.0 s 40.0 s 42.0 s 44.0 s FCP 3.8 s LCP 42.3 shttps://www.shreekalyan.com/shreekalyan/index/shreekalyan/index https://www.shreekalyan.com/shreekalyan/index — 200 — 16.9 KiB — 921 ms — h2https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.csscdn.jsdelivr.net/npm/bootstrap@5.3.... https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css — 200 — 32.9 KiB — 25 ms — h2https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/css/all.min.css — 200 — 19.0 KiB — 38 ms — h3https://unpkg.com/aos@2.3.1/dist/aos.cssunpkg.com/aos@2.3.1/dist/aos.css https://unpkg.com/aos@2.3.1/dist/aos.css — 200 — 2.6 KiB — 30 ms — h3https://unpkg.com/aos@2.3.1/dist/aos.jsunpkg.com/aos@2.3.1/dist/aos.js https://unpkg.com/aos@2.3.1/dist/aos.js — 200 — 4.8 KiB — 34 ms — h3https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swapfonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap — 200 — 1.3 KiB — 68 ms — h2https://www.shreekalyan.com/shreekalyan/assets/css/style.css/shreekalyan/assets/css/style.css https://www.shreekalyan.com/shreekalyan/assets/css/style.css — 200 — 5.7 KiB — 237 ms — h2https://www.shreekalyan.com/shreekalyan/assets/images/logo.png/shreekalyan/assets/images/logo.png https://www.shreekalyan.com/shreekalyan/assets/images/logo.png — 200 — 187.5 KiB — 918 ms — h2https://www.shreekalyan.com/shreekalyan/assets/images/qr-code.png/shreekalyan/assets/images/qr-code.... https://www.shreekalyan.com/shreekalyan/assets/images/qr-code.png — 200 — 78.5 KiB — 918 ms — h2https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.jscdn.jsdelivr.net/npm/bootstrap@5.3.... https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js — 200 — 23.6 KiB — 13 ms — h2data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='…www.w3.org/2000/svg' viewBox='0 0 3... data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='… — 200 — 0 B — 0 ms — datahttps://www.shreekalyan.com/shreekalyan/assets/images/website-assets/01-homepage/hero-main-01.png/shreekalyan/assets/images/website-... https://www.shreekalyan.com/shreekalyan/assets/images/website-assets/01-homepage/hero-main-01.png — 200 — 7.0 MiB — 2.8 s — h2data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='no…www.w3.org/2000/svg' viewBox='0 0 1... data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='no… — 200 — 0 B — 0 ms — datahttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-solid-900.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-solid-900.woff2 — 200 — 147.3 KiB — 48 ms — h3https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2fonts.gstatic.com/s/inter/v20/UcC73... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 200 — 47.3 KiB — 13 ms — h3https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-brands-400.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-brands-400.woff2 — 200 — 106.2 KiB — 36 ms — h3https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-regular-400.woff2cdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.4.0/webfonts/fa-regular-400.woff2 — 200 — 25.0 KiB — 33 ms — h3https://www.shreekalyan.com/shreekalyan/assets/images/favlogo.png/shreekalyan/assets/images/favlogo.... https://www.shreekalyan.com/shreekalyan/assets/images/favlogo.png — 200 — 237.4 KiB — 245 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
2% of JavaScript execution is third-party
First-party Third-party 69ms · 24KB · €1/mo
jsDelivr
CDN
Optional
Execution 69ms
Transfer 24 KB
Monthly Cost €1/mo

How third-party costs are calculated

Image Optimization
4 images, 453 KB total, 254 KB wasted
INFO

Image Optimization Audit

Total Images

4

Total Size

453 KB

Oversized

2

Wasted

254 KB

4 missing dimensions 2 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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