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https://ttmb-coffee.surge.sh

Performance

· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
2
REVIEW
7
PASS
14
INFO
4

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

Mobile Desktop
43
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
79
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.
66
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.

4.41 s

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

12.89 s

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

845 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.

5.11 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.

12.89 s

Page Load Progression

585 ms
1.2 s
1.8 s
2.3 s
2.9 s
3.5 s
4.1 s
4.7 s
Checks
27
14 PASS 7 REVIEW 2 FIX
F
Page Weight Budget
Action
3.0 MB transferred, 17 requests
FIX
3.0 MB transferred, 17 requests
Warning::
Page weighs 3.7 MB (3.0 MB transferred)
Warning::
Images are 2.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.6 MB
Info::
17 HTTP requests
Info::
Estimated 0.63 g CO2 per page load
3.0 MB / 2.4 MB budget
3.0 MB transferred
17 requests
0.63 g CO2 per page load
Images 2.6 MiB 88%
JavaScript 244.2 KiB 8%
Fonts 90.5 KiB 3%
HTML 26.3 KiB 1%
CSS 2.0 KiB 0%
Other 785 B 0%
Other 782 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

D
JS Execution Cost
Action
2611ms total JS execution
FIX
2611ms total JS execution
Warning::
https://ttmb-coffee.surge.sh/: 2029ms CPU time
Warning::
Unattributable: 312ms CPU time
Info::
https://cdn.tailwindcss.com/: 165ms CPU time
Info::
https://unpkg.com/lucide@latest: 105ms CPU time
Info::
Third-party scripts: 270ms (10% of total)

Main Thread Breakdown

Script Evaluation 50% Style & Layout 23% Other 14% Script Parsing & Compilation 5%
ScriptTotalScriptingParse/CompileParty
https://ttmb-coffee.surge.sh/2029ms1158ms7ms1st
Unattributable312ms5ms0ms1st
https://cdn.tailwindcss.com/165ms125ms40ms3rd
https://unpkg.com/lucide@latest105ms32ms72ms3rd
B
Image Optimization
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Info::
All images are well-optimized
6 images 2.6 MB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
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
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
17 resources · 3.0 MB · 0 KB savings available
REVIEW
17 resources · 3.0 MB · 0 KB savings available
Warning::
Page weight 3.0 MB exceeds 1 MB target by 2.0 MB
Got: 3.0 MB Expected: ≤ 1 MB
Info::
8 third-party resources (11% of weight)
Info::
6 resources over 200KB
17 resources · 3.0 MiB · 8 third-party 2.0 MiB over 1MB target
Image 88% · 2.6 MiB
JavaScript 8% · 244.2 KiB
Font 3% · 90.5 KiB
Document 1% · 26.3 KiB
CSS 0% · 2.0 KiB
Other 0% · 1.5 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
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 (326.8 KiB of 3.0 MiB)
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+
Font Loading
3 fonts (91 KB)
PASS
3 fonts (91 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

91 KB total

Render-blocking

0

of 3

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 FCP 4.4 s LCP 12.9 shttps://fonts.gstatic.com/s/playfairdisplay/v40/nuFiD-vYSZviVYUb_rj3ij__anPXDTzYgEM86xQ.woff2nuFiD-vYSZviVYUb_rj3ij_... https://fonts.gstatic.com/s/playfairdisplay/v40/nuFiD-vYSZviVYUb_rj3ij__anPXDTzYgEM86xQ.woff2 — 37.6 KiB — 95 ms — font-display: swaphttps://fonts.gstatic.com/s/outfit/v15/QGYvz_MVcBeNP4NJtEtqUYLknw.woff2QGYvz_MVcBeNP4NJtEtqUYL... https://fonts.gstatic.com/s/outfit/v15/QGYvz_MVcBeNP4NJtEtqUYLknw.woff2 — 31.5 KiB — 90 ms — font-display: swaphttps://fonts.gstatic.com/s/playfairdisplay/v40/nuFRD-vYSZviVYUb_rj3ij__anPXDTnCjmHKM4nYO7KN_qiTXtHA-X-oE0o.woff2nuFRD-vYSZviVYUb_rj3ij_... https://fonts.gstatic.com/s/playfairdisplay/v40/nuFRD-vYSZviVYUb_rj3ij__anPXDTnCjmHKM4nYO7KN_qiTXtHA-X-oE0o.woff2 — 21.4 KiB — 97 ms — font-display: swap
nuFiD-vYSZviVYUb_rj3ij_... woff2 swap
Size 38 KB
Load time 95 ms
Start 947 ms
Risk FOUT — text flashes from fallback to web font
QGYvz_MVcBeNP4NJtEtqUYL... woff2 swap
Size 32 KB
Load time 90 ms
Start 949 ms
Risk FOUT — text flashes from fallback to web font
nuFRD-vYSZviVYUb_rj3ij_... woff2 swap
Size 21 KB
Load time 97 ms
Start 949 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
3 scripts, 0 KB unused
PASS
3 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cdn.tailwindcss.com/3.4.17124 KB—✓3rd
https://unpkg.com/lucide@1.66.0/dist/umd/lucide.min.js110 KB—✓3rd
https://ttmb-coffee.surge.sh/menuData.js11 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
7 hints, 0 missing preconnects
PASS
7 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 7 resource hint(s)

Current Resource Hints

preconnect
6
preload
1
dns-prefetch
—
prefetch
—

7 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+
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
PASS
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, max-age=0, 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::
`ETag` present -- conditional GET supported
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
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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
17 requests over 1046ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 4.4 s LCP 12.9 shttps://ttmb-coffee.surge.sh// https://ttmb-coffee.surge.sh/ — 200 — 26.3 KiB — 166 ms — h2https://ttmb-coffee.surge.sh/images/01_hero_courtyard_exterior.jpg/images/01_hero_courtyard_exterior.... https://ttmb-coffee.surge.sh/images/01_hero_courtyard_exterior.jpg — 200 — 378.2 KiB — 143 ms — h2https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800&family=Outfit:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Tajawal:wght@400;500;700&display=swapfonts.googleapis.com/css2?family=Ca... https://fonts.googleapis.com/css2?family=Cairo:wght@400;500;600;700;800&family=Outfit:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=Tajawal:wght@400;500;700&display=swap — 200 — 2.0 KiB — 168 ms — h2https://cdn.tailwindcss.com/cdn.tailwindcss.com/ https://cdn.tailwindcss.com/ — 302 — 477 B — 94 ms — h2https://unpkg.com/lucide@latestunpkg.com/lucide@latest https://unpkg.com/lucide@latest — 302 — 305 B — 98 ms — h3https://ttmb-coffee.surge.sh/images/02_signature_coffee_bar.jpg/images/02_signature_coffee_bar.jpg https://ttmb-coffee.surge.sh/images/02_signature_coffee_bar.jpg — 200 — 467.7 KiB — 203 ms — h2https://ttmb-coffee.surge.sh/images/03_terracotta_courtyard_seating.jpg/images/03_terracotta_courtyard_sea... https://ttmb-coffee.surge.sh/images/03_terracotta_courtyard_seating.jpg — 200 — 503.1 KiB — 183 ms — h2https://cdn.tailwindcss.com/3.4.17cdn.tailwindcss.com/3.4.17 https://cdn.tailwindcss.com/3.4.17 — 200 — 123.9 KiB — 48 ms — h2https://unpkg.com/lucide@1.66.0/dist/umd/lucide.min.jsunpkg.com/lucide@1.66.0/dist/umd/lu... https://unpkg.com/lucide@1.66.0/dist/umd/lucide.min.js — 200 — 109.6 KiB — 159 ms — h3https://ttmb-coffee.surge.sh/images/04_grazia_editorial_feature.jpg/images/04_grazia_editorial_feature... https://ttmb-coffee.surge.sh/images/04_grazia_editorial_feature.jpg — 200 — 209.0 KiB — 43 ms — h2https://ttmb-coffee.surge.sh/menuData.js/menuData.js https://ttmb-coffee.surge.sh/menuData.js — 200 — 10.6 KiB — 40 ms — h2https://ttmb-coffee.surge.sh/manifest.json/manifest.json https://ttmb-coffee.surge.sh/manifest.json — 200 — 785 B — 114 ms — h2https://ttmb-coffee.surge.sh/images/05_menupages_verified_venue.jpg/images/05_menupages_verified_venue... https://ttmb-coffee.surge.sh/images/05_menupages_verified_venue.jpg — 200 — 664.6 KiB — 52 ms — h2https://ttmb-coffee.surge.sh/images/06_zomato_verified_brunch.jpg/images/06_zomato_verified_brunch.j... https://ttmb-coffee.surge.sh/images/06_zomato_verified_brunch.jpg — 200 — 484.9 KiB — 48 ms — h2https://fonts.gstatic.com/s/playfairdisplay/v40/nuFiD-vYSZviVYUb_rj3ij__anPXDTzYgEM86xQ.woff2fonts.gstatic.com/s/playfairdisplay... https://fonts.gstatic.com/s/playfairdisplay/v40/nuFiD-vYSZviVYUb_rj3ij__anPXDTzYgEM86xQ.woff2 — 200 — 37.6 KiB — 95 ms — h3https://fonts.gstatic.com/s/outfit/v15/QGYvz_MVcBeNP4NJtEtqUYLknw.woff2fonts.gstatic.com/s/outfit/v15/QGYv... https://fonts.gstatic.com/s/outfit/v15/QGYvz_MVcBeNP4NJtEtqUYLknw.woff2 — 200 — 31.5 KiB — 90 ms — h3https://fonts.gstatic.com/s/playfairdisplay/v40/nuFRD-vYSZviVYUb_rj3ij__anPXDTnCjmHKM4nYO7KN_qiTXtHA-X-oE0o.woff2fonts.gstatic.com/s/playfairdisplay... https://fonts.gstatic.com/s/playfairdisplay/v40/nuFRD-vYSZviVYUb_rj3ij__anPXDTnCjmHKM4nYO7KN_qiTXtHA-X-oE0o.woff2 — 200 — 21.4 KiB — 97 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
10% of JavaScript execution is third-party
First-party Third-party 270ms · 1KB · $4/mo
cdn.tailwindcss.com
Other
Optional
Execution 165ms
Transfer 0 KB
Monthly Cost $2/mo
unpkg
CDN
Optional
Execution 105ms
Transfer 0 KB
Monthly Cost $1/mo

How third-party costs are calculated

Image Optimization
65 images, 3549 KB total, 2521 KB wasted
INFO

Image Optimization Audit

Total Images

65

Total Size

3549 KB

Oversized

6

Wasted

2521 KB

65 missing dimensions 9 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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