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https://drshubhra.world

Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
92
GRADE
A
FIX
2
REVIEW
8
PASS
10
INFO
2

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

Mobile Desktop
73
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
68
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.

1.78 s

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

2.60 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.

0.005

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

2.80 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.

2.60 s

Page Load Progression

736 ms
1.5 s
2.2 s
2.9 s
3.7 s
4.4 s
5.2 s
5.9 s
Checks
22
10 PASS 8 REVIEW 2 FIX
F
Page Weight Budget
Action
8.1 MB transferred, 19 requests
FIX
8.1 MB transferred, 19 requests
Critical::
Page weighs 8.5 MB (8.1 MB transferred)
Warning::
Images are 8.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 8.0 MB
Info::
19 HTTP requests
Info::
Estimated 1.7 g CO2 per page load
8.1 MB / 2.4 MB budget
8.1 MB transferred
19 requests
1.7 g CO2 per page load
Images 8.0 MiB 99%
Fonts 84.2 KiB 1%
HTML 21.5 KiB 0%
CSS 2.5 KiB 0%
JavaScript 691 B 0%
Other 0 B 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

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.

C
Image Optimization
Action
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Warning::
https://drshubhra.world/in.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/yt.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.
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/div.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/shubhra.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/2.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/3.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/li.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://drshubhra.world/azoth.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 8.0 MB
0 oversized -0 KB
12 legacy format
11 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

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

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

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

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.
C
Page Weight Inventory
Action
19 resources · 8.1 MB · 0 KB savings available
REVIEW
19 resources · 8.1 MB · 0 KB savings available
Warning::
Page weight 8.1 MB exceeds 1 MB target by 7.1 MB
Got: 8.1 MB Expected: ≤ 1 MB
Info::
4 third-party resources (1% of weight)
Info::
7 resources over 200KB
19 resources · 8.1 MiB · 4 third-party 7.1 MiB over 1MB target
Image 99% · 8.0 MiB
Font 1% · 84.2 KiB
Document 0% · 21.5 KiB
CSS 0% · 2.5 KiB
JavaScript 0% · 691 B
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
1% third-party, 0 ms blocking
PASS
1% third-party, 0 ms blocking
Info::
Third-party code accounts for 1% of page weight (86.7 KiB of 8.1 MiB)
Info::
Third-party blocking time is low (0 ms)
99%
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
129ms total JS execution
PASS
129ms total JS execution
Info::
Unattributable: 66ms CPU time
Info::
https://drshubhra.world/: 63ms CPU time

Main Thread Breakdown

Other 59% Style & Layout 25% Rendering 7% Script Evaluation 5%
ScriptTotalScriptingParse/CompileParty
Unattributable66ms1ms0ms1st
https://drshubhra.world/63ms4ms1ms1st
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 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 1.8 s LCP 2.6 shttps://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2UcC73FwrK3iLTeHuS_nVMrM... https://fonts.gstatic.com/s/inter/v20/UcC73FwrK3iLTeHuS_nVMrMxCp50SjIa1ZL7W0Q5nw.woff2 — 47.3 KiB — 33 ms — font-display: swaphttps://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2co3bmX5slCNuHLi8bLeY9MK... https://fonts.gstatic.com/s/cormorantgaramond/v21/co3bmX5slCNuHLi8bLeY9MK7whWMhyjYqXtKky2F7g.woff2 — 36.9 KiB — 25 ms — font-display: swap
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 33 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
co3bmX5slCNuHLi8bLeY9MK... woff2 swap
Size 37 KB
Load time 25 ms
Start 1.3 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
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+
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.
Network Waterfall
19 requests over 3577ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.8 s LCP 2.6 shttps://drshubhra.world// https://drshubhra.world/ — 200 — 21.5 KiB — 1.1 s — 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 — 77 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 — 78 ms — h2https://drshubhra.world/watermark.js/watermark.js https://drshubhra.world/watermark.js — 200 — 691 B — 249 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 — 33 ms — h3https://drshubhra.world/sign.png/sign.png https://drshubhra.world/sign.png — 200 — 79.8 KiB — 979 ms — h2https://drshubhra.world/logo_vertical.png/logo_vertical.png https://drshubhra.world/logo_vertical.png — 200 — 560.0 KiB — 2.2 s — h2https://drshubhra.world/div.png/div.png https://drshubhra.world/div.png — 200 — 177.1 KiB — 1.2 s — h2https://drshubhra.world/shubhra.png/shubhra.png https://drshubhra.world/shubhra.png — 200 — 1.8 MiB — 1.7 s — h2https://drshubhra.world/1.png/1.png https://drshubhra.world/1.png — 200 — 1.2 MiB — 1.7 s — h2https://drshubhra.world/2.png/2.png https://drshubhra.world/2.png — 200 — 695.6 KiB — 2.2 s — h2https://drshubhra.world/3.png/3.png https://drshubhra.world/3.png — 200 — 911.7 KiB — 2.2 s — h2https://drshubhra.world/azoth.png/azoth.png https://drshubhra.world/azoth.png — 200 — 354.4 KiB — 2.2 s — h2https://drshubhra.world/in.png/in.png https://drshubhra.world/in.png — 200 — 2.7 KiB — 497 ms — h2https://drshubhra.world/yt.png/yt.png https://drshubhra.world/yt.png — 200 — 733 B — 1.7 s — h2https://drshubhra.world/li.png/li.png https://drshubhra.world/li.png — 200 — 581 B — 497 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 — 200 — 2.3 MiB — 2.3 s — h2https://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 — 25 ms — h3https://drshubhra.world/azoth.png/azoth.png https://drshubhra.world/azoth.png — 200 — 0 B — 1 ms — h2
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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