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Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
89
GRADE
B
FIX
1
REVIEW
6
PASS
12
INFO
3

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

Mobile Desktop
88
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.
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.

1.34 s

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

1.79 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

1 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.041

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

1.34 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.

2.12 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
22
12 PASS 6 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
Page Weight Budget
1.1 MB transferred, 19 requests
REVIEW
1.1 MB transferred, 19 requests
Info::
Page weighs 1.3 MB (1.1 MB transferred)
Warning::
JavaScript is 550 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 550 KB
Info::
19 HTTP requests
Info::
Estimated 0.24 g CO2 per page load
1.1 MB / 2.4 MB budget
1.1 MB transferred
19 requests
0.24 g CO2 per page load
JavaScript 549.6 KiB 48%
Images 438.1 KiB 38%
CSS 84.1 KiB 7%
Other 40.7 KiB 4%
Fonts 28.1 KiB 2%
HTML 11.8 KiB 1%
0 2.4 MB 4.9 MB
Under budget

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

C
JS Bundles
Action
10 scripts, 190 KB unused
REVIEW
10 scripts, 190 KB unused
Warning::
https://blmc.com/assets/index-Bmlf_5wj.js: 190 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 190 KB
190 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://blmc.com/assets/index-Bmlf_5wj.js457 KB190 KB (42%)✓1st
https://blmc.com/assets/useStore-B9WcefOa.js27 KB—✓1st
https://blmc.com/assets/utils-CfMCI_j3.js49 KB—✓1st
https://blmc.com/assets/matchContext-qt4X6gfq.js1 KB—✓1st
https://blmc.com/assets/routes-DBtDf2hV.js9 KB—✓1st
https://blmc.com/assets/shield-check-DqymbLDm.js2 KB—✓1st
https://blmc.com/assets/arrow-right-CkI0jTX3.js0 KB—✓1st
https://blmc.com/assets/Layout-LrBuXw-z.js3 KB—✓1st
https://blmc.com/assets/FaqList-C5a-lmEb.js1 KB—✓1st
https://blmc.com/assets/chevron-down-DU0FWf8E.js0 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
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
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.
A+
Third-Party Impact
3% third-party, 0 ms blocking
PASS
3% third-party, 0 ms blocking
Info::
Third-party code accounts for 3% of page weight (29.4 KiB of 1.1 MiB)
Info::
Third-party blocking time is low (0 ms)
97%
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
Image Optimization
1 images, 0 KB saveable
PASS
1 images, 0 KB saveable
Warning::
https://blmc.com/og-image.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
1 images 438 KB
0 oversized -0 KB
1 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

A+
JS Execution Cost
464ms total JS execution
PASS
464ms total JS execution
Info::
https://blmc.com/: 225ms CPU time
Info::
Unattributable: 138ms CPU time
Info::
https://blmc.com/assets/index-Bmlf_5wj.js: 101ms CPU time

Main Thread Breakdown

Other 48% Style & Layout 25% Script Evaluation 22% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://blmc.com/225ms4ms2ms1st
Unattributable138ms2ms0ms1st
https://blmc.com/assets/index-Bmlf_5wj.js101ms96ms1ms1st
A+
Font Loading
1 fonts (28 KB)
PASS
1 fonts (28 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

28 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 1.5 s FCP 1.3 s LCP 1.8 shttps://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3w8aZejf5Hc.woff2nwpStKy2OAdR1K-IwhWudF-... https://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3w8aZejf5Hc.woff2 — 28.1 KiB — 9 ms — font-display: swap
nwpStKy2OAdR1K-IwhWudF-... woff2 swap
Size 28 KB
Load time 9 ms
Start 916 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+
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
Warning::
Compressed response missing `Vary` header
The page is served with `Content-Encoding: gzip` 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
19 resources · 1.1 MB · 190 KB savings available
PASS
19 resources · 1.1 MB · 190 KB savings available
Warning::
Page weight 1.1 MB exceeds 1 MB target by 128 KB
Got: 1.1 MB Expected: ≤ 1 MB
Info::
~190 KB of savings available
Info::
2 third-party resources (3% of weight)
Info::
2 resources over 200KB
19 resources · 1.1 MiB · 2 third-party 128.5 KiB over 1MB target
JavaScript 48% · 549.6 KiB
Image 42% · 478.8 KiB
CSS 7% · 84.1 KiB
Font 2% · 28.1 KiB
Document 1% · 11.8 KiB

~190.4 KiB of savings available

Remove unused JavaScript: 190.4 KiB
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

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
19 requests over 1727ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.3 s LCP 1.8 shttps://blmc.com// https://blmc.com/ — 200 — 11.8 KiB — 468 ms — http/1.1https://blmc.com/og-image.png/og-image.png https://blmc.com/og-image.png — 200 — 438.1 KiB — 492 ms — http/1.1https://fonts.googleapis.com/css2?family=Source+Sans+3:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swapfonts.googleapis.com/css2?family=So... https://fonts.googleapis.com/css2?family=Source+Sans+3:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap — 200 — 1.3 KiB — 122 ms — h2https://blmc.com/assets/styles-NKuA_RRq.css/assets/styles-NKuA_RRq.css https://blmc.com/assets/styles-NKuA_RRq.css — 200 — 82.8 KiB — 353 ms — http/1.1https://blmc.com/assets/index-Bmlf_5wj.js/assets/index-Bmlf_5wj.js https://blmc.com/assets/index-Bmlf_5wj.js — 200 — 457.1 KiB — 917 ms — http/1.1https://blmc.com/assets/useStore-B9WcefOa.js/assets/useStore-B9WcefOa.js https://blmc.com/assets/useStore-B9WcefOa.js — 200 — 27.2 KiB — 485 ms — http/1.1https://blmc.com/assets/utils-CfMCI_j3.js/assets/utils-CfMCI_j3.js https://blmc.com/assets/utils-CfMCI_j3.js — 200 — 48.7 KiB — 580 ms — http/1.1https://blmc.com/assets/matchContext-qt4X6gfq.js/assets/matchContext-qt4X6gfq.js https://blmc.com/assets/matchContext-qt4X6gfq.js — 200 — 1.1 KiB — 351 ms — http/1.1https://blmc.com/assets/routes-DBtDf2hV.js/assets/routes-DBtDf2hV.js https://blmc.com/assets/routes-DBtDf2hV.js — 200 — 8.7 KiB — 484 ms — http/1.1https://blmc.com/assets/shield-check-DqymbLDm.js/assets/shield-check-DqymbLDm.js https://blmc.com/assets/shield-check-DqymbLDm.js — 200 — 1.9 KiB — 481 ms — http/1.1https://blmc.com/assets/arrow-right-CkI0jTX3.js/assets/arrow-right-CkI0jTX3.js https://blmc.com/assets/arrow-right-CkI0jTX3.js — 200 — 491 B — 608 ms — http/1.1https://blmc.com/assets/Layout-LrBuXw-z.js/assets/Layout-LrBuXw-z.js https://blmc.com/assets/Layout-LrBuXw-z.js — 200 — 2.5 KiB — 608 ms — http/1.1https://blmc.com/assets/FaqList-C5a-lmEb.js/assets/FaqList-C5a-lmEb.js https://blmc.com/assets/FaqList-C5a-lmEb.js — 200 — 1.4 KiB — 608 ms — http/1.1https://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3w8aZejf5Hc.woff2fonts.gstatic.com/s/sourcesans3/v19... https://fonts.gstatic.com/s/sourcesans3/v19/nwpStKy2OAdR1K-IwhWudF-R3w8aZejf5Hc.woff2 — 200 — 28.1 KiB — 9 ms — h3https://blmc.com/assets/chevron-down-DU0FWf8E.js/assets/chevron-down-DU0FWf8E.js https://blmc.com/assets/chevron-down-DU0FWf8E.js — 200 — 454 B — 117 ms — http/1.1https://blmc.com/assets/favicon-DhkdGFxq.png/assets/favicon-DhkdGFxq.png https://blmc.com/assets/favicon-DhkdGFxq.png — 200 — 40.7 KiB — 118 ms — http/1.1https://blmc.com/assets/favicon-DhkdGFxq.png/assets/favicon-DhkdGFxq.png https://blmc.com/assets/favicon-DhkdGFxq.png — 200 — 0 B — 2 ms — http/1.1https://blmc.com/assets/favicon-DhkdGFxq.png/assets/favicon-DhkdGFxq.png https://blmc.com/assets/favicon-DhkdGFxq.png — 200 — 0 B — 3 ms — http/1.1https://blmc.com/assets/favicon-DhkdGFxq.png/assets/favicon-DhkdGFxq.png https://blmc.com/assets/favicon-DhkdGFxq.png — 200 — 0 B — 2 ms — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
2 images, 876 KB total, 435 KB wasted
INFO

Image Optimization Audit

Total Images

2

Total Size

876 KB

Oversized

1

Wasted

435 KB

2 missing dimensions 1 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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