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https://drshubhra.world

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
1
REVIEW
8
PASS
15
INFO
2

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

Mobile Desktop
83
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
74
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.
92
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.

3.39 s

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

3.54 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.

0.000

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

3.39 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.

3.54 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
26
15 PASS 8 REVIEW 1 FIX
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
13 images, 0 KB saveable
REVIEW
13 images, 0 KB saveable
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/logo_vertical.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/1.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/sign.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
13 images 640 KB
0 oversized -0 KB
3 legacy format
4 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

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
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
Asset Compression
1 of 1 asset host serve text uncompressed
REVIEW
1 of 1 asset host serve text uncompressed
Warning::
fonts.googleapis.com serves text assets uncompressed (assets: 4)
The sampled response carries a text content type but no Content-Encoding, so the bytes go over the wire raw. Text compression typically removes 70-80% of a JS or CSS payload -- this is the single cheapest transfer win available on this host.
Got: fonts.googleapis.com (text/css)
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
2 JS blocking issue(s) detected
Warning::
1 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.
Warning::
Page uses document.write() -- disables Chrome's preload scanner
`document.write()` blocks all parallel resource discovery while it executes. Chrome explicitly disables the preload scanner on connections it judges slow when document.write is detected, serializing the entire subtree load. Almost always third-party ad / analytics legacy code; replacing with createElement + appendChild (or refusing to integrate the offending vendor) recovers significant load-time on mobile.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Page Weight Budget
756 KB transferred, 20 requests
PASS
756 KB transferred, 20 requests
Info::
Page weighs 885 KB (756 KB transferred)
Info::
20 HTTP requests
Info::
Estimated 0.15 g CO2 per page load
756 KB / 2.4 MB budget
756 KB transferred
20 requests
0.15 g CO2 per page load
Images 639.9 KiB 85%
Fonts 84.2 KiB 11%
HTML 28.7 KiB 4%
CSS 2.5 KiB 0%
JavaScript 668 B 0%
Other 189 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Third-Party Impact
11% third-party, 0 ms blocking
PASS
11% third-party, 0 ms blocking
Info::
Third-party code accounts for 11% of page weight (86.7 KiB of 756.2 KiB)
Info::
Third-party blocking time is low (0 ms)
89%
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+
JS Execution Cost
398ms total JS execution
PASS
398ms total JS execution
Warning::
https://drshubhra.world/: 263ms CPU time
Info::
Unattributable: 135ms CPU time

Main Thread Breakdown

Other 43% Style & Layout 35% Script Evaluation 10% Rendering 6% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://drshubhra.world/263ms28ms7ms1st
Unattributable135ms6ms0ms1st
A+
Font Loading
2 fonts (84 KB)
PASS
2 fonts (84 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

84 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 1.0 s 2.0 s 3.0 s FCP 3.4 s LCP 3.5 shttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 32 ms — font-display: swaphttps://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2co3bmX5slCNuHLi8bLeY9MK... https://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2 — 36.9 KiB — 23 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 32 ms
Start 2.4 s
Risk FOUT — text flashes from fallback to web font
co3bmX5slCNuHLi8bLeY9MK... woff2 swap
Size 37 KB
Load time 23 ms
Start 2.6 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)
A+
JS Bundles
1 scripts, 0 KB unused
PASS
1 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://drshubhra.world/watermark.js1 KB—✓1st
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
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
2 URL(s) appear in multiple hints
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://fonts.googleapis.com (preconnect+preconnect), https://fonts.gstatic.com (preconnect+preconnect).
Info::
Page uses 4 resource hint(s)

Current Resource Hints

preconnect
4
preload
—
dns-prefetch
—
prefetch
—

4 resource hints configured

The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: https://fonts.googleapis.com (preconnect+preconnect), https://fonts.gstatic.com (preconnect+preconnect).

Why this matters

Performance issues directly impact user engagement and conversion rates.

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::
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
20 resources · 756 KB · 0 KB savings available
PASS
20 resources · 756 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 756 KB
Info::
4 third-party resources (11% of weight)
Info::
2 resources over 200KB
20 resources · 756.2 KiB · 4 third-party Within 1MB page-weight target
Image 85% · 639.9 KiB
Font 11% · 84.2 KiB
Document 4% · 28.9 KiB
CSS 0% · 2.5 KiB
JavaScript 0% · 668 B
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+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Network Waterfall
20 requests over 3099ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 3.4 s LCP 3.5 shttps://drshubhra.world// https://drshubhra.world/ — 200 — 7.2 KiB — 742 ms — h2https://drshubhra.world/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3cedae52f?wsidchk=10132079&pdata=https%253A%252F%252Fdrshubhra.world&id=7fa3b767c460b54a2be4d49030b349c7&ts=1793264353&cttl=0/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3c... https://drshubhra.world/z0f76a1d14fd21a8fb5fd0d03e0fdc3d3cedae52f?wsidchk=10132079&pdata=https%253A%252F%252Fdrshubhra.world&id=7fa3b767c460b54a2be4d49030b349c7&ts=1793264353&cttl=0 — 302 — 189 B — 247 ms — h2https://drshubhra.world// https://drshubhra.world/ — 200 — 21.5 KiB — 300 ms — h2https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swapfonts.googleapis.com/css2?family=Co... https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@400;500;600;700&family=Inter:wght@300;400;500;600&display=swap — 200 — 1.4 KiB — 93 ms — h2https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600;700&family=Inter:wght@200;300;400;500&display=swapfonts.googleapis.com/css2?family=Co... https://fonts.googleapis.com/css2?family=Cormorant+Garamond:wght@300;400;500;600;700&family=Inter:wght@200;300;400;500&display=swap — 200 — 1.1 KiB — 91 ms — h2https://drshubhra.world/watermark.js/watermark.js https://drshubhra.world/watermark.js — 200 — 668 B — 263 ms — h2https://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 — 32 ms — h3https://drshubhra.world/div.png/div.png https://drshubhra.world/div.png — -1 — 0 B — 0 ms — https://drshubhra.world/shubhra.png/shubhra.png https://drshubhra.world/shubhra.png — -1 — 0 B — 0 ms — https://drshubhra.world/2.png/2.png https://drshubhra.world/2.png — -1 — 0 B — 0 ms — https://drshubhra.world/sign.png/sign.png https://drshubhra.world/sign.png — 200 — 79.8 KiB — 500 ms — h2https://drshubhra.world/3.png/3.png https://drshubhra.world/3.png — -1 — 0 B — 0 ms — https://drshubhra.world/azoth.png/azoth.png https://drshubhra.world/azoth.png — -1 — 0 B — 0 ms — https://drshubhra.world/in.png/in.png https://drshubhra.world/in.png — -1 — 0 B — 0 ms — https://drshubhra.world/yt.png/yt.png https://drshubhra.world/yt.png — -1 — 0 B — 0 ms — https://drshubhra.world/li.png/li.png https://drshubhra.world/li.png — -1 — 0 B — 0 ms — https://drshubhra.world/logo_vertical.png/logo_vertical.png https://drshubhra.world/logo_vertical.png — 200 — 288.1 KiB — 500 ms — h2https://drshubhra.world/1.png/1.png https://drshubhra.world/1.png — 200 — 272.1 KiB — 499 ms — h2https://drshubhra.world/banner2.png?q=80&w=1600&auto=format&fit=crop/banner2.png?q=80&w=1600&auto=forma... https://drshubhra.world/banner2.png?q=80&w=1600&auto=format&fit=crop — -1 — 0 B — 0 ms — https://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2fonts.gstatic.com/s/cormorantgaramo... https://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2 — 200 — 36.9 KiB — 23 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
17 images, 8038 KB total, 3863 KB wasted
INFO

Image Optimization Audit

Total Images

17

Total Size

8038 KB

Oversized

7

Wasted

3863 KB

13 missing alt text 17 missing dimensions 15 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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