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Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
79
GRADE
C
FIX
3
REVIEW
6
PASS
9
INFO
4

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

Mobile Desktop
78
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
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.

770 ms

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

1.98 s

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

26 ms

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

0.241

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

880 ms

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

2.18 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
9 PASS 6 REVIEW 3 FIX
D
Third-Party Impact
Action
61% third-party, 0 ms blocking
FIX
61% third-party, 0 ms blocking
Warning::
Third-party code accounts for 61% of page weight (860.6 KiB of 1.4 MiB)
Info::
Third-party blocking time is low (0 ms)
39%
61%
First-party Third-party
D
JS Bundles
Action
24 scripts, 319 KB unused
FIX
24 scripts, 319 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-5HDJ...: 87 KB unused (51%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=AW-168...: 81 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NHR...: 69 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn-4.convertexperiments.com/js/1004924-10...: 57 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://beacon-v2.helpscout.net/static/js/vendor.4...: 25 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 319 KB
319 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-5HDJXYWBNB&cx=c&gtm=4e6570h2171 KB87 KB (51%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-16841659969&cx=c&gtm=4e6570h2145 KB81 KB (56%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NHRB36F184 KB69 KB (37%)✓3rd
https://cdn-4.convertexperiments.com/js/1004924-1004851.js105 KB57 KB (55%)✓3rd
https://beacon-v2.helpscout.net/static/js/vendor.4969c740.js25 KB25 KB (100%)✓3rd
https://widget.trustpilot.com/bootstrap/v5/tp.widget.bootstrap.min.js8 KB—✓3rd
https://yoast.com/wp/wp-includes/js/jquery/ui/core.min.js?ver=1.13.37 KB—✓1st
https://yoast.com/app/plugins/woocommerce/assets/js/frontend/country-select.min.js?ver=10.0.51 KB—✓1st
https://yoast.com/app/plugins/yith-woocommerce-affiliates-premium/assets/js/yith-wcaf-shortcodes.bundle.min.js?ver=7bbf26ef29213b54f93b8 KB—✓1st
https://yoast.com/app/themes/yoast-theme/js/yoast.min.js?ver=17702951215 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

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

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

D
Page Weight Inventory
Action
101 resources · 1.4 MB · 319 KB savings available
FIX
101 resources · 1.4 MB · 319 KB savings available
Warning::
Page weight 1.4 MB exceeds 1 MB target by 379 KB
Got: 1.4 MB Expected: ≤ 1 MB
Info::
~319 KB of savings available
Warning::
37 third-party resources (61% of weight)
101 resources · 1.4 MiB · 37 third-party 378.7 KiB over 1MB target
JavaScript 58% · 810.3 KiB
Font 17% · 234.6 KiB
Image 13% · 188.1 KiB
CSS 7% · 101.8 KiB
Document 4% · 55.9 KiB
Other 1% · 12.1 KiB

~318.7 KiB of savings available

Remove unused JavaScript: 318.7 KiB
B
Page Weight Budget
1.4 MB transferred, 101 requests
REVIEW
1.4 MB transferred, 101 requests
Info::
Page weighs 3.7 MB (1.4 MB transferred)
Warning::
JavaScript is 810 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 810 KB
Info::
Fonts are 235 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 235 KB
Warning::
101 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.29 g CO2 per page load
1.4 MB / 2.4 MB budget
1.4 MB transferred
101 requests
0.29 g CO2 per page load
JavaScript 810.3 KiB 58%
Fonts 234.6 KiB 17%
Images 180.2 KiB 13%
CSS 101.8 KiB 7%
HTML 55.9 KiB 4%
Other 8.8 KiB 1%
Other 8.3 KiB 1%
Other 1.4 KiB 0%
Other 1.0 KiB 0%
Other 475 B 0%
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

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

C
Image Optimization
Action
30 images, 0 KB saveable
REVIEW
30 images, 0 KB saveable
Warning::
https://yoast.com/app/uploads/2023/03/results_usp_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://yoast.com/app/uploads/2023/03/technical_us... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://yoast.com/app/uploads/2025/11/download_ico... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://yoast.com/app/uploads/2023/03/content_usp_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://yoast.com/app/uploads/2023/03/support_usp_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://yoast.com/app/uploads/2025/04/yoast_logo_2... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
30 images 180 KB
0 oversized -0 KB
10 legacy format
6 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

B
JS Execution Cost
816ms total JS execution
REVIEW
816ms total JS execution
Warning::
https://yoast.com/: 299ms CPU time
Info::
https://cdn-4.convertexperiments.com/js/1004924-10...: 136ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-NHR...: 128ms CPU time
Info::
Unattributable: 114ms CPU time
Info::
https://yoast.com/cdn-cgi/challenge-platform/scrip...: 74ms CPU time
Warning::
Third-party scripts: 443ms (54% of total)

Main Thread Breakdown

Script Evaluation 46% Other 25% Style & Layout 13% Script Parsing & Compilation 7% Parse HTML & CSS 4% Rendering 4%
ScriptTotalScriptingParse/CompileParty
https://yoast.com/299ms12ms3ms1st
https://cdn-4.convertexperiments.com/js/1004924-1004851.js136ms100ms8ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NHRB36F128ms101ms16ms3rd
Unattributable114ms2ms0ms3rd
https://yoast.com/cdn-cgi/challenge-platform/scripts/jsd/main.js74ms69ms0ms1st
https://www.googletagmanager.com/gtag/js?id=G-5HDJXYWBNB&cx=c&gtm=4e6570h266ms52ms13ms3rd
C
Compression Algorithm
Action
Main response served uncompressed
REVIEW
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
C
Main HTML Cache-Control
Action
Main HTML max-age=57793 (~963min) is aggressive
REVIEW
Main HTML max-age=57793 (~963min) is aggressive
Warning::
Main HTML cached for 963 minutes -- risks stale auth / SPA state
Long max-age on the main HTML document means users may see outdated auth state, SPA shells, or A/B variants until the cache expires. Consider Cache-Control: no-cache (or max-age=300) for HTML and let your hashed assets (JS/CSS/images) carry the long cache instead.
Got: public, max-age=57793, s-maxage=57793, stale-while-revalidate=120, stale-if-error=14400
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+
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
4 fonts (235 KB)
PASS
4 fonts (235 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

235 KB total

Render-blocking

0

of 4

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 FCP 770 ms LCP 2.0 shttps://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Regular.woff2OpenSans-Regular.woff2 https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Regular.woff2 — 58.2 KiB — 58 ms — font-display: swaphttps://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Italic.woff2OpenSans-Italic.woff2 https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Italic.woff2 — 61.1 KiB — 60 ms — font-display: swaphttps://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-SemiBold.woff2OpenSans-SemiBold.woff2 https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-SemiBold.woff2 — 58.9 KiB — 64 ms — font-display: swaphttps://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Bold.woff2OpenSans-Bold.woff2 https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Bold.woff2 — 56.3 KiB — 65 ms — font-display: swap
OpenSans-Regular.woff2 woff2 swap
Size 58 KB
Load time 58 ms
Start 87 ms
Risk FOUT — text flashes from fallback to web font
OpenSans-Italic.woff2 woff2 swap
Size 61 KB
Load time 60 ms
Start 87 ms
Risk FOUT — text flashes from fallback to web font
OpenSans-SemiBold.woff2 woff2 swap
Size 59 KB
Load time 64 ms
Start 87 ms
Risk FOUT — text flashes from fallback to web font
OpenSans-Bold.woff2 woff2 swap
Size 56 KB
Load time 65 ms
Start 88 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+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=57793 (16 hours)
PASS
max-age=57793 (16 hours)
Info::
Cache-Control header is set
Got: public, max-age=57793, s-maxage=57793, stale-while-revalidate=120, stale-if-error=14400
Info::
Effective TTL: 16 hours (max-age=57793)
Info::
CDN TTL: 16 hours (s-maxage=57793)
Info::
Last-Modified header present
Cache-Control

public, max-age=57793, s-maxage=57793, stale-while-revalidate=120, stale-if-error=14400

DirectiveValueMeaning
public—Any cache may store this response
max-age57793Cache for 16 hours
s-maxage57793CDN caches for 16 hours
stale-while-revalidate120Serve stale for 2 minutes while fetching fresh
stale-if-error14400
Effective TTL: 57793 seconds
Network Waterfall
101 requests over 1030ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 770 ms LCP 2.0 shttps://yoast.com// https://yoast.com/ — 200 — 46.7 KiB — 80 ms — h2https://yoast.com/app/themes/yoast-theme/css/style.min.css?ver=1777465021/app/themes/yoast-theme/css/style.m... https://yoast.com/app/themes/yoast-theme/css/style.min.css?ver=1777465021 — 200 — 61.5 KiB — 36 ms — h2https://yoast.com/app/themes/yoast-theme/css/templates/menu.min.css?ver=1773650775/app/themes/yoast-theme/css/templat... https://yoast.com/app/themes/yoast-theme/css/templates/menu.min.css?ver=1773650775 — 200 — 3.0 KiB — 35 ms — h2https://cdn-4.convertexperiments.com/js/1004924-1004851.jscdn-4.convertexperiments.com/js/100... https://cdn-4.convertexperiments.com/js/1004924-1004851.js — 200 — 104.6 KiB — 20 ms — http/1.1https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Regular.woff2/app/themes/yoast-com/assets/fonts/... https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Regular.woff2 — 200 — 58.2 KiB — 58 ms — h2https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Italic.woff2/app/themes/yoast-com/assets/fonts/... https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Italic.woff2 — 200 — 61.1 KiB — 60 ms — h2https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-SemiBold.woff2/app/themes/yoast-com/assets/fonts/... https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-SemiBold.woff2 — 200 — 58.9 KiB — 64 ms — h2https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Bold.woff2/app/themes/yoast-com/assets/fonts/... https://yoast.com/app/themes/yoast-com/assets/fonts/OpenSansStatic/OpenSans-Bold.woff2 — 200 — 56.3 KiB — 65 ms — h2https://yoast.com/app/plugins/address-autocomplete/build/style-address-autocomplete-billing-block.css?ver=1.1.2/app/plugins/address-autocomplete/b... https://yoast.com/app/plugins/address-autocomplete/build/style-address-autocomplete-billing-block.css?ver=1.1.2 — 200 — 90 B — 54 ms — h2https://fonts.googleapis.com/css2?family=Inter%3Awght%40400%3B500%3B600&ver=1.14fonts.googleapis.com/css2?family=In... https://fonts.googleapis.com/css2?family=Inter%3Awght%40400%3B500%3B600&ver=1.14 — 200 — 1.2 KiB — 98 ms — h2https://yoast.com/app/plugins/helpful-pro/public/assets/css/general.css?ver=1.14/app/plugins/helpful-pro/public/ass... https://yoast.com/app/plugins/helpful-pro/public/assets/css/general.css?ver=1.14 — 200 — 1.0 KiB — 56 ms — h2https://yoast.com/app/uploads/daexthefup_uploads/custom-1.css?ver=1.14/app/uploads/daexthefup_uploads/cus... https://yoast.com/app/uploads/daexthefup_uploads/custom-1.css?ver=1.14 — 200 — 850 B — 38 ms — h2https://yoast.com/app/plugins/woocommerce/assets/css/select2.css?ver=10.0.5/app/plugins/woocommerce/assets/css... https://yoast.com/app/plugins/woocommerce/assets/css/select2.css?ver=10.0.5 — 200 — 2.0 KiB — 36 ms — h2https://yoast.com/app/plugins/yith-woocommerce-affiliates-premium/assets/css/yith-wcaf.min.css?ver=3.12.0/app/plugins/yith-woocommerce-affil... https://yoast.com/app/plugins/yith-woocommerce-affiliates-premium/assets/css/yith-wcaf.min.css?ver=3.12.0 — 200 — 5.6 KiB — 39 ms — h2https://yoast.com/app/plugins/woocommerce/assets/css/brands.css?ver=10.0.5/app/plugins/woocommerce/assets/css... https://yoast.com/app/plugins/woocommerce/assets/css/brands.css?ver=10.0.5 — 200 — 791 B — 37 ms — h2https://yoast.com/app/plugins/yith-multi-currency-switcher-for-woocommerce/plugin-fw/assets/css/yith-icon.css?ver=4.6.5/app/plugins/yith-multi-currency-sw... https://yoast.com/app/plugins/yith-multi-currency-switcher-for-woocommerce/plugin-fw/assets/css/yith-icon.css?ver=4.6.5 — 200 — 11.8 KiB — 40 ms — h2https://yoast.com/app/plugins/yith-multi-currency-switcher-for-woocommerce/assets/css/shortcodes.css?ver=1.36.1-beta-1/app/plugins/yith-multi-currency-sw... https://yoast.com/app/plugins/yith-multi-currency-switcher-for-woocommerce/assets/css/shortcodes.css?ver=1.36.1-beta-1 — 200 — 3.4 KiB — 41 ms — h2https://yoast.com/app/themes/yoast-com/assets/css/siteheader.min.css?ver=1774858901/app/themes/yoast-com/assets/css/si... https://yoast.com/app/themes/yoast-com/assets/css/siteheader.min.css?ver=1774858901 — 200 — 639 B — 51 ms — h2https://yoast.com/app/themes/yoast-com/assets/css/pages/page-wide.min.css?ver=1773742574/app/themes/yoast-com/assets/css/pa... https://yoast.com/app/themes/yoast-com/assets/css/pages/page-wide.min.css?ver=1773742574 — 200 — 2.2 KiB — 53 ms — h2https://yoast.com/app/themes/yoast-theme/css/patterns/Layout/Webinar_Page/webinar-page.min.css?ver=1774858904/app/themes/yoast-theme/css/pattern... https://yoast.com/app/themes/yoast-theme/css/patterns/Layout/Webinar_Page/webinar-page.min.css?ver=1774858904 — 200 — 899 B — 38 ms — h2https://yoast.com/app/themes/yoast-theme/js/includes/jquery-3.5.1.min.js?ver=3.5.1/app/themes/yoast-theme/js/includes... https://yoast.com/app/themes/yoast-theme/js/includes/jquery-3.5.1.min.js?ver=3.5.1 — 200 — 30.6 KiB — 54 ms — h2https://yoast.com/app/uploads/2025/11/download_icon.svg/app/uploads/2025/11/download_icon.... https://yoast.com/app/uploads/2025/11/download_icon.svg — 200 — 932 B — 54 ms — h2https://yoast.com/app/uploads/2025/04/yoast_logo_2025_homepage.svg/app/uploads/2025/04/yoast_logo_202... https://yoast.com/app/uploads/2025/04/yoast_logo_2025_homepage.svg — 200 — 3.1 KiB — 54 ms — h2https://logs.convertexperiments.com/loglogs.convertexperiments.com/log https://logs.convertexperiments.com/log — 200 — 237 B — 109 ms — h2https://1004851.metrics.convertexperiments.com/log-rep/1004851.metrics.convertexperiments.... https://1004851.metrics.convertexperiments.com/log-rep/ — 200 — 238 B — 107 ms — 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h3https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2025/05/woo_1344x480.png/cdn-cgi/image/width=672%2Cheight=2... https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2025/05/woo_1344x480.png — 200 — 3.8 KiB — 42 ms — h3https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2025/08/ai_insights_1344x480.png/cdn-cgi/image/width=672%2Cheight=2... https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2025/08/ai_insights_1344x480.png — 200 — 3.7 KiB — 38 ms — h3https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2021/07/shopify_1344x480.png/cdn-cgi/image/width=672%2Cheight=2... https://yoast.com/cdn-cgi/image/width=672%2Cheight=240%2Cfit=crop%2Cf=auto%2Conerror=redirect/app/uploads/2021/07/shopify_1344x480.png — 200 — 4.3 KiB — 42 ms — h3https://fonts.bunny.net/css?family=ibm-plex-sans:400,600fonts.bunny.net/css?family=ibm-plex... https://fonts.bunny.net/css?family=ibm-plex-sans:400,600 — 200 — 1.3 KiB — 95 ms — h2https://widget.trustpilot.com/trustboxes/5406e65db0d04a09e042d5fc/index.html?templateId=5406e65db0d04a09e042d5fc&businessunitId=5deec8a369466f000109fd42widget.trustpilot.com/trustboxes/54... https://widget.trustpilot.com/trustboxes/5406e65db0d04a09e042d5fc/index.html?templateId=5406e65db0d04a09e042d5fc&businessunitId=5deec8a369466f000109fd42 — 200 — 3.6 KiB — 54 ms — h2https://widget.trustpilot.com/trustboxes/54ad5defc6454f065c28af8b/index.html?templateId=54ad5defc6454f065c28af8b&businessunitId=5deec8a369466f000109fd42widget.trustpilot.com/trustboxes/54... https://widget.trustpilot.com/trustboxes/54ad5defc6454f065c28af8b/index.html?templateId=54ad5defc6454f065c28af8b&businessunitId=5deec8a369466f000109fd42 — 200 — 5.6 KiB — 51 ms — h2https://yoast.com/cdn-cgi/challenge-platform/scripts/jsd/main.js/cdn-cgi/challenge-platform/scripts... https://yoast.com/cdn-cgi/challenge-platform/scripts/jsd/main.js — 302 — 447 B — 40 ms — h3https://fast.wistia.com/oembed/?url=https%3A%2F%2Fhome.wistia.com%2Fmedias%2Ffehi88zy99&format=json&callback=?fast.wistia.com/oembed/?url=https%3... https://fast.wistia.com/oembed/?url=https%3A%2F%2Fhome.wistia.com%2Fmedias%2Ffehi88zy99&format=json&callback=? — 200 — 1.4 KiB — 8 ms — h2https://yoast.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js?/cdn-cgi/challenge-platform/h/g/scr... https://yoast.com/cdn-cgi/challenge-platform/h/g/scripts/jsd/fe6331af5207/main.js? — 200 — 10.1 KiB — 25 ms — h3https://embed-ssl.wistia.com/deliveries/b2e1b3e866eb2e9e5a8bd7cff6c44d86.jpg?image_crop_resized=1280x720embed-ssl.wistia.com/deliveries/b2e... https://embed-ssl.wistia.com/deliveries/b2e1b3e866eb2e9e5a8bd7cff6c44d86.jpg?image_crop_resized=1280x720 — 200 — 133.6 KiB — 96 ms — h2https://widget.trustpilot.com/trustboxes/5406e65db0d04a09e042d5fc/main.jswidget.trustpilot.com/trustboxes/54... https://widget.trustpilot.com/trustboxes/5406e65db0d04a09e042d5fc/main.js — 200 — 26.1 KiB — 25 ms — h2https://widget.trustpilot.com/trustboxes/54ad5defc6454f065c28af8b/main.jswidget.trustpilot.com/trustboxes/54... https://widget.trustpilot.com/trustboxes/54ad5defc6454f065c28af8b/main.js — 200 — 18.5 KiB — 21 ms — h2https://yoast.com/app/themes/yoast-theme/images/play-button.png/app/themes/yoast-theme/images/play... https://yoast.com/app/themes/yoast-theme/images/play-button.png — 200 — 2.4 KiB — 33 ms — h3https://yoast.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.33067712203744704:1778314912:lncDBpxprEm2zNr52PLwllRsB8VIH8eDCendgQu35RM/9f8f6dcede566f06/cdn-cgi/challenge-platform/h/g/jsd... https://yoast.com/cdn-cgi/challenge-platform/h/g/jsd/oneshot/fe6331af5207/0.33067712203744704:1778314912:lncDBpxprEm2zNr52PLwllRsB8VIH8eDCendgQu35RM/9f8f6dcede566f06 — 200 — 1.0 KiB — 25 ms — h3https://widget.trustpilot.com/trustbox-data/5406e65db0d04a09e042d5fc?businessUnitId=5deec8a369466f000109fd42&locale=en-USwidget.trustpilot.com/trustbox-data... https://widget.trustpilot.com/trustbox-data/5406e65db0d04a09e042d5fc?businessUnitId=5deec8a369466f000109fd42&locale=en-US — 200 — 977 B — 19 ms — h2https://widget.trustpilot.com/stats/TrustboxImpression?locale=en-US&styleHeight=28px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=5406e65db0d04a09e042d5fcwidget.trustpilot.com/stats/Trustbo... https://widget.trustpilot.com/stats/TrustboxImpression?locale=en-US&styleHeight=28px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=5406e65db0d04a09e042d5fc — 204 — 309 B — 36 ms — h2https://widget.trustpilot.com/stats/TrustboxView?locale=en-US&styleHeight=28px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=5406e65db0d04a09e042d5fcwidget.trustpilot.com/stats/Trustbo... https://widget.trustpilot.com/stats/TrustboxView?locale=en-US&styleHeight=28px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=5406e65db0d04a09e042d5fc — 204 — 310 B — 39 ms — h2https://widget.trustpilot.com/trustbox-data/54ad5defc6454f065c28af8b?businessUnitId=5deec8a369466f000109fd42&locale=en-US&reviewStars=4%2C5&reviewsPerPage=15widget.trustpilot.com/trustbox-data... https://widget.trustpilot.com/trustbox-data/54ad5defc6454f065c28af8b?businessUnitId=5deec8a369466f000109fd42&locale=en-US&reviewStars=4%2C5&reviewsPerPage=15 — 200 — 5.9 KiB — 19 ms — h2https://widget.trustpilot.com/stats/TrustboxImpression?locale=en-US&styleHeight=240px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=54ad5defc6454f065c28af8bwidget.trustpilot.com/stats/Trustbo... https://widget.trustpilot.com/stats/TrustboxImpression?locale=en-US&styleHeight=240px&styleWidth=100%25&theme=light&stars=4%2C5&url=https%3A%2F%2Fyoast.com%2F&referrer=&userAgent=Mozilla%2F5.0%20(Macintosh%3B%20Intel%20Mac%20OS%20X%2010_15_7)%20AppleWebKit%2F537.36%20(KHTML%2C%20like%20Gecko)%20Chrome%2F148.0.0.0%20Safari%2F537.36&language=en-US&platform=Linux%20x86_64&nosettings=1&businessUnitId=5deec8a369466f000109fd42&widgetId=54ad5defc6454f065c28af8b — 204 — 310 B — 37 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=4d430231-5dc8-4d47-aeaa-fd86ec442317cdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=4d430231-5dc8-4d47-aeaa-fd86ec442317 — -1 — 0 B — 77 ms — https://www.googletagmanager.com/gtag/js?id=G-5HDJXYWBNB&cx=c&gtm=4e6570h2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-5HDJXYWBNB&cx=c&gtm=4e6570h2 — 200 — 171.4 KiB — 67 ms — h2https://www.googletagmanager.com/gtag/js?id=AW-16841659969&cx=c&gtm=4e6570h2www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=AW-16841659969&cx=c&gtm=4e6570h2 — 200 — 144.5 KiB — 105 ms — h2https://beacon-v2.helpscout.net/beacon-v2.helpscout.net/ https://beacon-v2.helpscout.net/ — 200 — 869 B — 57 ms — h2https://yoast.com/images/yoast_icon.svg/images/yoast_icon.svg https://yoast.com/images/yoast_icon.svg — 200 — 1.0 KiB — 50 ms — h3https://yoast.com/images/yoast_icon_180x180.png/images/yoast_icon_180x180.png https://yoast.com/images/yoast_icon_180x180.png — 200 — 5.2 KiB — 35 ms — h3https://yoast.com/images/yoast_icon_32x32.ico/images/yoast_icon_32x32.ico https://yoast.com/images/yoast_icon_32x32.ico — 200 — 1.6 KiB — 35 ms — h3https://beacon-v2.helpscout.net/static/js/vendor.4969c740.jsbeacon-v2.helpscout.net/static/js/v... https://beacon-v2.helpscout.net/static/js/vendor.4969c740.js — 200 — 25.3 KiB — 23 ms — h2https://beacon-v2.helpscout.net/static/js/main.a6cfe222.jsbeacon-v2.helpscout.net/static/js/m... https://beacon-v2.helpscout.net/static/js/main.a6cfe222.js — 200 — 12.9 KiB — 25 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
54% of JavaScript execution is third-party
First-party Third-party 443ms · 460KB · €2/mo
cdn-4.convertexperiments.com
Other
Optional
Execution 136ms
Transfer 105 KB
Unused 55%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 128ms
Transfer 184 KB
Unused 37%
Monthly Cost €1/mo
Unattributable
Other
Optional
Execution 114ms
Transfer 0 KB
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 66ms
Transfer 171 KB
Unused 51%
Monthly Cost €0/mo

54% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

55% of cdn-4.convertexperiments.com's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

51% of Google Tag Manager's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

How third-party costs are calculated

Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-04-10 — 2026-05-07)

LCP (p75)

2579 ms

74% good

INP (p75)

78 ms

92% good

CLS (p75)

0.200

42% good

FCP (p75)

1767 ms

TTFB (p75)

414 ms

Image Optimization
53 images, 9 KB total, 2 KB wasted
INFO

Image Optimization Audit

Total Images

53

Total Size

9 KB

Oversized

2

Wasted

2 KB

46 missing alt text 7 missing dimensions 5 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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