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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
6
PASS
8
INFO
2

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

Mobile Desktop
71
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
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.

3.16 s

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

6.63 s

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

47 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.

3.16 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.

6.65 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
17
8 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.

C
Page Weight Budget
Action
1.8 MB transferred, 54 requests
REVIEW
1.8 MB transferred, 54 requests
Info::
Page weighs 2.7 MB (1.8 MB transferred)
Warning::
Images are 1.1 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.1 MB
Info::
Fonts are 371 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 371 KB
Info::
54 HTTP requests
Info::
Estimated 0.38 g CO2 per page load
1.8 MB / 2.4 MB budget
1.8 MB transferred
54 requests
0.38 g CO2 per page load
Images 1.1 MiB 63%
Fonts 371.1 KiB 20%
JavaScript 183.0 KiB 10%
HTML 60.0 KiB 3%
CSS 56.4 KiB 3%
Other 6.9 KiB 0%
Other 1.8 KiB 0%
Other 518 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

B
Image Optimization
27 images, 0 KB saveable
REVIEW
27 images, 0 KB saveable
Info::
All images are well-optimized
27 images 1.1 MB
0 oversized -0 KB
13 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1241ms total JS execution
REVIEW
1241ms total JS execution
Warning::
https://wordpress.com/: 506ms CPU time
Warning::
Unattributable: 293ms CPU time
Warning::
https://wordpress.com/_static/??-eJylkd0OgjAMhV/IW...: 269ms CPU time
Info::
https://wordpress.com/home.logged-out/page-2024-ju...: 96ms CPU time
Info::
https://s0.wp.com/wp-content/mu-plugins/a8c-analyt...: 78ms CPU time
Info::
Third-party scripts: 371ms (30% of total)

Main Thread Breakdown

Style & Layout 30% Script Evaluation 28% Other 28% Parse HTML & CSS 6% Script Parsing & Compilation 5% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://wordpress.com/506ms59ms16ms1st
Unattributable293ms43ms0ms3rd
https://wordpress.com/_static/??-eJylkd0OgjAMhV/IWRWC3BifZXQVCmWb29Dw9i7+JF6S7KptzjlfTlJ4eoXOJrIJ0kAzRRhq8LL0bCOMUVEILkQQ13/X/Rh38Jf6eUVb4zVO0C0sBlA4qxvNVj82On2+lQ+MtDHQicNJfdqoiIH9ezgRtn0BA1eUkg5p9WTUjUlMAeW+UEzsbAEif9apToeMuM6X47lpm6puT4fxBcjXyiA=269ms59ms4ms1st
https://wordpress.com/home.logged-out/page-2024-jul/js/bundle.js?v=175335021096ms73ms11ms1st
https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/9c4d3e3f28a09375bb45.a8c-analytics.js78ms30ms1ms3rd
B
JS Bundles
12 scripts, 94 KB unused
REVIEW
12 scripts, 94 KB unused
Warning::
https://accounts.google.com/gsi/client: 72 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://wordpress.com/home.logged-out/page-2024-ju...: 22 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 94 KB
94 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://accounts.google.com/gsi/client96 KB72 KB (75%)✓3rd
https://wordpress.com/home.logged-out/page-2024-jul/js/bundle.js?v=175335021037 KB22 KB (60%)✓1st
https://wordpress.com/_static/??-eJylkd0OgjAMhV/IWRWC3BifZXQVCmWb29Dw9i7+JF6S7KptzjlfTlJ4eoXOJrIJ0kAzRRhq8LL0bCOMUVEILkQQ13/X/Rh38Jf6eUVb4zVO0C0sBlA4qxvNVj82On2+lQ+MtDHQicNJfdqoiIH9ezgRtn0BA1eUkg5p9WTUjUlMAeW+UEzsbAEif9apToeMuM6X47lpm6puT4fxBcjXyiA=16 KB—✓1st
https://stats.wp.com/w.js?685 KB—✓3rd
https://wordpress.com/wp-content/js/bilmur.min.js?i=17&m=2026125 KB—✓1st
https://wordpress.com/wp-content/js/def-queue.js?v=15668423601 KB—✓1st
https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/a8c-analytics.js?v=17743735512 KB—✓3rd
https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/8de60a4730efd578190b.a8c-analytics.js7 KB—✓3rd
https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/18963dab99afed0916ef.a8c-analytics.js7 KB—✓3rd
https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/9c4d3e3f28a09375bb45.a8c-analytics.js4 KB—✓3rd

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

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

C
Page Weight Inventory
Action
54 resources · 1.8 MB · 94 KB savings available
REVIEW
54 resources · 1.8 MB · 94 KB savings available
Warning::
Page weight 823 KB over 1MB target
Got: 1.8 MB Expected: ≤ 1 MB
Info::
~94 KB of savings available
Info::
29 third-party resources (7% of weight)
Info::
4 resources over 200KB
54 resources · 1.8 MiB · 29 third-party 822.9 KiB over 1MB target
Image 64% · 1.1 MiB
Font 20% · 371.1 KiB
JavaScript 10% · 183.0 KiB
Document 3% · 60.9 KiB
CSS 3% · 56.4 KiB
Other 0% · 2.3 KiB

~94.0 KiB of savings available

Remove unused JavaScript: 94.0 KiB
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Third-Party Impact
7% third-party, 0 ms blocking
PASS
7% third-party, 0 ms blocking
Info::
Third-party code accounts for 7% of page weight (135.1 KiB of 1.8 MiB)
Info::
Third-party blocking time is low (0 ms)
93%
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
2 fonts (371 KB)
PASS
2 fonts (371 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

371 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 4.0 s 5.0 s 6.0 s FCP 3.2 s LCP 6.6 shttps://wordpress.com/i/fonts/recoleta/400.woff2400.woff2 https://wordpress.com/i/fonts/recoleta/400.woff2 — 33.3 KiB — 12 ms — font-display: swaphttps://wordpress.com/i/fonts/inter-4.0/InterVariable.woff2InterVariable.woff2 https://wordpress.com/i/fonts/inter-4.0/InterVariable.woff2 — 337.8 KiB — 25 ms — font-display: swap
400.woff2 woff2 swap
Size 33 KB
Load time 12 ms
Start 131 ms
Risk FOUT — text flashes from fallback to web font
InterVariable.woff2 woff2 swap
Size 338 KB
Load time 25 ms
Start 237 ms
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
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 ~169 KB and ~338 ms

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
6 hints, 0 missing preconnects
PASS
6 hints, 0 missing preconnects
Info::
Page uses 6 resource hint(s)

Current Resource Hints

preconnect
5
preload
1
dns-prefetch
—
prefetch
—

6 resource hints configured

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
Network Waterfall
54 requests over 610ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s FCP 3.2 s LCP 6.6 shttps://wordpress.com// https://wordpress.com/ — 200 — 60.0 KiB — 126 ms — h2https://wordpress.com/i/fonts/recoleta/400.woff2/i/fonts/recoleta/400.woff2 https://wordpress.com/i/fonts/recoleta/400.woff2 — 200 — 33.3 KiB — 12 ms — h2https://wordpress.com/_static/??-eJyd0EEOAiEMQNELicxo4sSF8SxQEHFqi9Myhtur8QBG9v9tvn0WA0waSW3BmjKJRUehOJitrxmDFW0YtyCysb9jcqv5C3hkmL/E5HcrPVBbicFccsTQwwUWRsyUevCV17gYUNeDoUHfqkeNopmpxyInNt4tH3u+n8ZpGnaH4bgfby+lwcXT&cssminify=yes/_static/??-eJyd0EEOAiEMQNELicxo4sS... https://wordpress.com/_static/??-eJyd0EEOAiEMQNELicxo4sSF8SxQEHFqi9Myhtur8QBG9v9tvn0WA0waSW3BmjKJRUehOJitrxmDFW0YtyCysb9jcqv5C3hkmL/E5HcrPVBbicFccsTQwwUWRsyUevCV17gYUNeDoUHfqkeNopmpxyInNt4tH3u+n8ZpGnaH4bgfby+lwcXT&cssminify=yes — 200 — 37.5 KiB — 25 ms — h2https://wordpress.com/wp-content/plugins/gutenberg-core/v22.7.0/build/styles/block-library/style.min.css?m=1773412636i&cssminify=yes/wp-content/plugins/gutenberg-core/... https://wordpress.com/wp-content/plugins/gutenberg-core/v22.7.0/build/styles/block-library/style.min.css?m=1773412636i&cssminify=yes — 200 — 18.3 KiB — 23 ms — h2https://wordpress.com/wp-content/uploads/2025/07/wordpress-done-right-hero-2.webp/wp-content/uploads/2025/07/wordpre... https://wordpress.com/wp-content/uploads/2025/07/wordpress-done-right-hero-2.webp — 200 — 304.3 KiB — 26 ms — h2https://wordpress.com/home.logged-out/page-2024-jul/js/bundle.js?v=1753350210/home.logged-out/page-2024-jul/js/b... https://wordpress.com/home.logged-out/page-2024-jul/js/bundle.js?v=1753350210 — 200 — 37.4 KiB — 8 ms — h3https://wordpress.com/_static/??-eJylkd0OgjAMhV/IWRWC3BifZXQVCmWb29Dw9i7+JF6S7KptzjlfTlJ4eoXOJrIJ0kAzRRhq8LL0bCOMUVEILkQQ13/X/Rh38Jf6eUVb4zVO0C0sBlA4qxvNVj82On2+lQ+MtDHQicNJfdqoiIH9ezgRtn0BA1eUkg5p9WTUjUlMAeW+UEzsbAEif9apToeMuM6X47lpm6puT4fxBcjXyiA=/_static/??-eJylkd0OgjAMhV/IWRWC3Bi... https://wordpress.com/_static/??-eJylkd0OgjAMhV/IWRWC3BifZXQVCmWb29Dw9i7+JF6S7KptzjlfTlJ4eoXOJrIJ0kAzRRhq8LL0bCOMUVEILkQQ13/X/Rh38Jf6eUVb4zVO0C0sBlA4qxvNVj82On2+lQ+MtDHQicNJfdqoiIH9ezgRtn0BA1eUkg5p9WTUjUlMAeW+UEzsbAEif9apToeMuM6X47lpm6puT4fxBcjXyiA= — 200 — 16.2 KiB — 8 ms — h3https://stats.wp.com/w.js?68stats.wp.com/w.js?68 https://stats.wp.com/w.js?68 — 200 — 5.1 KiB — 11 ms — h2https://wordpress.com/wp-content/js/bilmur.min.js?i=17&m=202612/wp-content/js/bilmur.min.js?i=17&m... https://wordpress.com/wp-content/js/bilmur.min.js?i=17&m=202612 — 200 — 5.4 KiB — 7 ms — h3https://wordpress.com/wp-content/js/def-queue.js?v=1566842360/wp-content/js/def-queue.js?v=15668... https://wordpress.com/wp-content/js/def-queue.js?v=1566842360 — 200 — 550 B — 7 ms — h3https://wordpress.com/wp-content/uploads/2025/07/plus-pattern-white.webp/wp-content/uploads/2025/07/plus-pa... https://wordpress.com/wp-content/uploads/2025/07/plus-pattern-white.webp — 200 — 579 B — 3 ms — h3https://wordpress.com/wp-content/themes/h4/assets/hosting/globe-blue.svg/wp-content/themes/h4/assets/hostin... https://wordpress.com/wp-content/themes/h4/assets/hosting/globe-blue.svg — 200 — 10.0 KiB — 100 ms — h3https://wpcom.files.wordpress.com/2025/10/rating-icon402x.pngwpcom.files.wordpress.com/2025/10/r... https://wpcom.files.wordpress.com/2025/10/rating-icon402x.png — 302 — 216 B — 100 ms — h2https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-1-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-1-2x-optimized.webp — 200 — 13.9 KiB — 7 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-2-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-2-2x-optimized.webp — 200 — 22.9 KiB — 19 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-3-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-3-2x-optimized.webp — 200 — 5.6 KiB — 8 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-4-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-4-2x-optimized.webp — 200 — 10.4 KiB — 38 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-5-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-5-2x-optimized.webp — 200 — 35.7 KiB — 27 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-6-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-6-2x-optimized.webp — 200 — 7.1 KiB — 39 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-7-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-7-2x-optimized.webp — 200 — 16.9 KiB — 40 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-8-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-8-2x-optimized.webp — 200 — 11.1 KiB — 38 ms — h3https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-9-2x-optimized.webp/wp-content/uploads/2023/10/theme-m... https://wordpress.com/wp-content/uploads/2023/10/theme-mobile-9-2x-optimized.webp — 200 — 10.9 KiB — 39 ms — h3https://wpcom.files.wordpress.com/2025/11/newsletters-1-1.webpwpcom.files.wordpress.com/2025/11/n... https://wpcom.files.wordpress.com/2025/11/newsletters-1-1.webp — 302 — 216 B — 98 ms — h2https://wpcom.files.wordpress.com/2025/11/blogging.webpwpcom.files.wordpress.com/2025/11/b... https://wpcom.files.wordpress.com/2025/11/blogging.webp — 302 — 211 B — 98 ms — h2https://wpcom.files.wordpress.com/2025/11/discover-1.webpwpcom.files.wordpress.com/2025/11/d... https://wpcom.files.wordpress.com/2025/11/discover-1.webp — 302 — 212 B — 98 ms — h2https://wordpress.com/i/fonts/inter-4.0/InterVariable.woff2/i/fonts/inter-4.0/InterVariable.wo... https://wordpress.com/i/fonts/inter-4.0/InterVariable.woff2 — 200 — 337.8 KiB — 25 ms — h3https://pixel.wp.com/g.gif?x_stats-initial-visibility=visible&v=wpcom-no-pv&rand=0.4006853530965665pixel.wp.com/g.gif?x_stats-initial-... https://pixel.wp.com/g.gif?x_stats-initial-visibility=visible&v=wpcom-no-pv&rand=0.4006853530965665 — 200 — 177 B — 14 ms — h2https://pixel.wp.com/g.gif?blog=1&v=wpcom&tz=0&user_id=0&post=23477399&subd=wordpress.com&host=wordpress.com&ref=&rand=0.00486162418853886pixel.wp.com/g.gif?blog=1&v=wpcom&t... https://pixel.wp.com/g.gif?blog=1&v=wpcom&tz=0&user_id=0&post=23477399&subd=wordpress.com&host=wordpress.com&ref=&rand=0.00486162418853886 — 200 — 177 B — 11 ms — h2https://pixel.wp.com/g.gif?crypt=UE5VRnhUZ2VGQSYvTVglSnBOaVR1Jk9bYn5tNmJ%2BTXolcGJkWWJrYkdyVCxjdDZjOC4yOVZHM0xKLzJlV0R8WzFGaF1xfGh4bj1wRXVPLGl0NU1ncEgldktKfn41clV3Q3VWMVdTRz84N2VbJS5ITUFMc2NqY2JXaVBUWUkxUVoyfDBRRS9faGtEWnZ%2BVVZ%2BMS5Bb0ZxNl15XXN%2Bd01MWFUraS1dNnQvSm50bGk3W3pULEtlN0M5NTVaMGssLS5hd0wlTkh4ZlNSUTdJMGhdMytLaWwrY3ZMTTA%3D&v=wpcom-no-pv&rand=0.14067226399494404pixel.wp.com/g.gif?crypt=UE5VRnhUZ2... https://pixel.wp.com/g.gif?crypt=UE5VRnhUZ2VGQSYvTVglSnBOaVR1Jk9bYn5tNmJ%2BTXolcGJkWWJrYkdyVCxjdDZjOC4yOVZHM0xKLzJlV0R8WzFGaF1xfGh4bj1wRXVPLGl0NU1ncEgldktKfn41clV3Q3VWMVdTRz84N2VbJS5ITUFMc2NqY2JXaVBUWUkxUVoyfDBRRS9faGtEWnZ%2BVVZ%2BMS5Bb0ZxNl15XXN%2Bd01MWFUraS1dNnQvSm50bGk3W3pULEtlN0M5NTVaMGssLS5hd0wlTkh4ZlNSUTdJMGhdMytLaWwrY3ZMTTA%3D&v=wpcom-no-pv&rand=0.14067226399494404 — 200 — 177 B — 12 ms — h2https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/a8c-analytics.js?v=1774373551s0.wp.com/wp-content/mu-plugins/a8c... https://s0.wp.com/wp-content/mu-plugins/a8c-analytics/a8c-analytics.js?v=1774373551 — 200 — 2.1 KiB — 18 ms — h2
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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
30% of JavaScript execution is third-party
First-party Third-party 371ms · 4KB · $5/mo
Unattributable
Other
Costly
Execution 293ms
Transfer 0 KB
Monthly Cost $4/mo
s0.wp.com
Other
Optional
Execution 78ms
Transfer 4 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 293ms and costs ~$4/month

Unattributable takes 293ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

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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