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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
4
REVIEW
3
PASS
6
INFO
2

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

Mobile Desktop
74
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
78
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
73
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.

722 ms

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

1.76 s

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

2 ms

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

0.382

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

1.00 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.

2.52 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
15
6 PASS 3 REVIEW 4 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 102 requests
FIX
2.3 MB transferred, 102 requests
Info::
Page weighs 5.6 MB (2.3 MB transferred)
Warning::
Images are 1.3 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.3 MB
Warning::
JavaScript is 933 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 933 KB
Warning::
102 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 0.49 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
102 requests
0.49 g CO2 per page load
Images 1.3 MiB 54%
JavaScript 933.2 KiB 39%
Other 104.5 KiB 4%
CSS 17.0 KiB 1%
HTML 14.2 KiB 1%
Other 12.6 KiB 1%
Other 1.6 KiB 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

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

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

D
JS Bundles
Action
17 scripts, 424 KB unused
FIX
17 scripts, 424 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-QZS1...: 110 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5JF...: 70 KB unused (63%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202510.2...: 67 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-QZS1...: 67 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ajax.googleapis.com/ajax/libs/jqueryui/1.1...: 58 KB unused (87%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 424 KB
424 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-QZS14P6J6N&cx=c&gtm=4e64h1156 KB110 KB (71%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5JFXBDP111 KB70 KB (63%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202510.2.0/otBannerSdk.js124 KB67 KB (54%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-QZS14P6J6N156 KB67 KB (43%)✓3rd
https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js66 KB58 KB (87%)✓3rd
https://cl.qualaroo.com/ki.js/38969/7O6.js56 KB29 KB (52%)✓3rd
https://f389d50a-32e0-478b-9d4b-2d4592528bea.edge.permutive.app/f389d50a-32e0-478b-9d4b-2d4592528bea-web.js168 KB23 KB (14%)✓3rd
https://wikitravel.org/customHP/js/jquery.main.js10 KB—✓1st
https://wikitravel.org/customHP/js/hp.js2 KB—✓1st
https://geolocation.onetrust.com/cookieconsentpub/v1/geo/location/dnsfeed0 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

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

F
Page Weight Inventory
Action
102 resources · 2.3 MB · 424 KB savings available
FIX
102 resources · 2.3 MB · 424 KB savings available
Warning::
Page weight 1.3 MB over 1MB target
Got: 2.3 MB Expected: ≤ 1 MB
Info::
~424 KB of savings available
Warning::
36 third-party resources (44% of weight)
Info::
1 resources over 200KB
102 resources · 2.3 MiB · 36 third-party 1.3 MiB over 1MB target
Image 54% · 1.3 MiB
JavaScript 39% · 933.2 KiB
Other 5% · 112.2 KiB
CSS 1% · 21.6 KiB
Document 1% · 14.8 KiB

~424.2 KiB of savings available

Remove unused JavaScript: 424.2 KiB
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
max-age0Cache for 0 seconds
no-store—Never cache this response
no-cache—Cache but always revalidate first
must-revalidate—Must recheck with server after expiry
post-check0
pre-check0
B
Third-Party Impact
44% third-party, 0 ms blocking
REVIEW
44% third-party, 0 ms blocking
Info::
Third-party code accounts for 44% of page weight (1.0 MiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
56%
44%
First-party Third-party
C
Image Optimization
Action
58 images, 0 KB saveable
REVIEW
58 images, 0 KB saveable
Warning::
https://wikitravel.org/customHP/uploads/events.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/alerts.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/1.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/2.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://wikitravel.org/customHP/uploads/des_month/... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://icons.internetbrands.com/ccpa/privacyoptio... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
58 images 1.3 MB
0 oversized -0 KB
58 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
JS Execution Cost
731ms total JS execution
REVIEW
731ms total JS execution
Info::
https://f389d50a-32e0-478b-9d4b-2d4592528bea.edge....: 186ms CPU time
Info::
Unattributable: 152ms CPU time
Info::
https://wikitravel.org/en/Main_Page: 131ms CPU time
Info::
https://wikitravel.org/cdn-cgi/challenge-platform/...: 102ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-QZS1...: 86ms CPU time
Warning::
Third-party scripts: 498ms (68% of total)

Main Thread Breakdown

Script Evaluation 56% Other 20% Script Parsing & Compilation 11% Style & Layout 9%
ScriptTotalScriptingParse/CompileParty
https://f389d50a-32e0-478b-9d4b-2d4592528bea.edge.permutive.app/f389d50a-32e0-478b-9d4b-2d4592528bea-web.js186ms138ms21ms3rd
Unattributable152ms3ms0ms3rd
https://wikitravel.org/en/Main_Page131ms16ms2ms1st
https://wikitravel.org/cdn-cgi/challenge-platform/scripts/jsd/main.js102ms99ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-QZS14P6J6N86ms71ms14ms3rd
https://cdn.cookielaw.org/scripttemplates/202510.2.0/otBannerSdk.js73ms54ms16ms3rd
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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

Network Waterfall
102 requests over 1959ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 722 ms LCP 1.8 shttps://wikitravel.org// https://wikitravel.org/ — 302 — 621 B — 98 ms — h3https://wikitravel.org/en/Main_Page/en/Main_Page https://wikitravel.org/en/Main_Page — 200 — 13.5 KiB — 80 ms — h3https://wikitravel.org/tcf_consent_trigger.js/tcf_consent_trigger.js https://wikitravel.org/tcf_consent_trigger.js — 200 — 1.0 KiB — 22 ms — h3https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 49 ms — h2https://cdn.cookielaw.org/opt-out/otCCPAiab.jscdn.cookielaw.org/opt-out/otCCPAiab... https://cdn.cookielaw.org/opt-out/otCCPAiab.js — 200 — 6.1 KiB — 51 ms — h2https://wikitravel.org/customHP/css/all.css/customHP/css/all.css https://wikitravel.org/customHP/css/all.css — 200 — 6.6 KiB — 22 ms — h3https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.jsajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js — 200 — 32.9 KiB — 45 ms — h2https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.cssajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css — 200 — 8.8 KiB — 38 ms — h2https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.jsajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js — 200 — 66.5 KiB — 54 ms — h2https://wikitravel.org/customHP/js/jquery.main.js/customHP/js/jquery.main.js https://wikitravel.org/customHP/js/jquery.main.js — 200 — 10.4 KiB — 30 ms — h3https://wikitravel.org/customHP/js/hp.js/customHP/js/hp.js https://wikitravel.org/customHP/js/hp.js — 200 — 2.0 KiB — 30 ms — h3https://wikitravel.org/customHP/css/responsive.css/customHP/css/responsive.css https://wikitravel.org/customHP/css/responsive.css — 200 — 1.6 KiB — 22 ms — h3https://wikitravel.org/customHP/images/map.png/customHP/images/map.png https://wikitravel.org/customHP/images/map.png — 200 — 89.1 KiB — 32 ms — h3https://wikitravel.org/customHP/uploads/des_month/440_1776349177.jpg/customHP/uploads/des_month/440_177... https://wikitravel.org/customHP/uploads/des_month/440_1776349177.jpg — 200 — 38.8 KiB — 31 ms — h3https://wikitravel.org/customHP/uploads/des_month/437_1773573749.jpg/customHP/uploads/des_month/437_177... https://wikitravel.org/customHP/uploads/des_month/437_1773573749.jpg — 200 — 54.9 KiB — 23 ms — h3https://wikitravel.org/customHP/uploads/des_month/438_1773574681.jpg/customHP/uploads/des_month/438_177... https://wikitravel.org/customHP/uploads/des_month/438_1773574681.jpg — 200 — 85.3 KiB — 24 ms — h3https://cdn.cookielaw.org/consent/fe7a5604-d518-47e1-b6a0-3aeac6f157d5/fe7a5604-d518-47e1-b6a0-3aeac6f157d5.jsoncdn.cookielaw.org/consent/fe7a5604-... https://cdn.cookielaw.org/consent/fe7a5604-d518-47e1-b6a0-3aeac6f157d5/fe7a5604-d518-47e1-b6a0-3aeac6f157d5.json — 200 — 2.6 KiB — 32 ms — h2https://wikitravel.org/customHP/uploads/des_month/441_1776349536.jpg/customHP/uploads/des_month/441_177... https://wikitravel.org/customHP/uploads/des_month/441_1776349536.jpg — 200 — 30.4 KiB — 19 ms — h3https://wikitravel.org/customHP/uploads/des_month/436_1770462654.jpg/customHP/uploads/des_month/436_177... https://wikitravel.org/customHP/uploads/des_month/436_1770462654.jpg — 200 — 54.0 KiB — 16 ms — h3https://wikitravel.org/customHP/uploads/des_month/439_1773575057.jpg/customHP/uploads/des_month/439_177... https://wikitravel.org/customHP/uploads/des_month/439_1773575057.jpg — 200 — 35.0 KiB — 22 ms — h3https://wikitravel.org/customHP/uploads/des_top/26_1552331930.jpg/customHP/uploads/des_top/26_155233... https://wikitravel.org/customHP/uploads/des_top/26_1552331930.jpg — 200 — 19.4 KiB — 27 ms — h3https://wikitravel.org/customHP/uploads/des_top/28_1554237173.jpg/customHP/uploads/des_top/28_155423... https://wikitravel.org/customHP/uploads/des_top/28_1554237173.jpg — 200 — 32.6 KiB — 63 ms — h3https://wikitravel.org/customHP/uploads/des_top/27_1552332139.jpg/customHP/uploads/des_top/27_155233... https://wikitravel.org/customHP/uploads/des_top/27_1552332139.jpg — 200 — 46.8 KiB — 77 ms — h3https://wikitravel.org/customHP/uploads/des_top/25_1552331784.jpg/customHP/uploads/des_top/25_155233... https://wikitravel.org/customHP/uploads/des_top/25_1552331784.jpg — 200 — 21.3 KiB — 26 ms — h3https://wikitravel.org/customHP/uploads/des_top/24_1552331570.jpg/customHP/uploads/des_top/24_155233... https://wikitravel.org/customHP/uploads/des_top/24_1552331570.jpg — 200 — 22.1 KiB — 61 ms — h3https://wikitravel.org/customHP/uploads/des_top/19_1483157768.jpg/customHP/uploads/des_top/19_148315... https://wikitravel.org/customHP/uploads/des_top/19_1483157768.jpg — 200 — 42.3 KiB — 36 ms — h3https://wikitravel.org/customHP/uploads/alerts.jpg/customHP/uploads/alerts.jpg https://wikitravel.org/customHP/uploads/alerts.jpg — 200 — 30.1 KiB — 75 ms — h3https://wikitravel.org/customHP/uploads/events.png/customHP/uploads/events.png https://wikitravel.org/customHP/uploads/events.png — 200 — 353.6 KiB — 134 ms — h3https://wikitravel.org/customHP/uploads/1.jpg/customHP/uploads/1.jpg https://wikitravel.org/customHP/uploads/1.jpg — 200 — 160.4 KiB — 78 ms — h3https://wikitravel.org/customHP/uploads/2.jpg/customHP/uploads/2.jpg https://wikitravel.org/customHP/uploads/2.jpg — 200 — 53.7 KiB — 73 ms — h3
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 722 ms LCP 1.8 shttps://wikitravel.org// https://wikitravel.org/ — 302 — 621 B — 98 ms — h3https://wikitravel.org/en/Main_Page/en/Main_Page https://wikitravel.org/en/Main_Page — 200 — 13.5 KiB — 80 ms — h3https://wikitravel.org/tcf_consent_trigger.js/tcf_consent_trigger.js https://wikitravel.org/tcf_consent_trigger.js — 200 — 1.0 KiB — 22 ms — h3https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 49 ms — h2https://cdn.cookielaw.org/opt-out/otCCPAiab.jscdn.cookielaw.org/opt-out/otCCPAiab... https://cdn.cookielaw.org/opt-out/otCCPAiab.js — 200 — 6.1 KiB — 51 ms — h2https://wikitravel.org/customHP/css/all.css/customHP/css/all.css https://wikitravel.org/customHP/css/all.css — 200 — 6.6 KiB — 22 ms — h3https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.jsajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js — 200 — 32.9 KiB — 45 ms — h2https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.cssajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/themes/smoothness/jquery-ui.css — 200 — 8.8 KiB — 38 ms — h2https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.jsajax.googleapis.com/ajax/libs/jquer... https://ajax.googleapis.com/ajax/libs/jqueryui/1.12.1/jquery-ui.min.js — 200 — 66.5 KiB — 54 ms — h2https://wikitravel.org/customHP/js/jquery.main.js/customHP/js/jquery.main.js https://wikitravel.org/customHP/js/jquery.main.js — 200 — 10.4 KiB — 30 ms — h3https://wikitravel.org/customHP/js/hp.js/customHP/js/hp.js https://wikitravel.org/customHP/js/hp.js — 200 — 2.0 KiB — 30 ms — h3https://wikitravel.org/customHP/css/responsive.css/customHP/css/responsive.css https://wikitravel.org/customHP/css/responsive.css — 200 — 1.6 KiB — 22 ms — h3https://wikitravel.org/customHP/images/map.png/customHP/images/map.png https://wikitravel.org/customHP/images/map.png — 200 — 89.1 KiB — 32 ms — h3https://wikitravel.org/customHP/uploads/des_month/440_1776349177.jpg/customHP/uploads/des_month/440_177... https://wikitravel.org/customHP/uploads/des_month/440_1776349177.jpg — 200 — 38.8 KiB — 31 ms — h3https://wikitravel.org/customHP/uploads/des_month/437_1773573749.jpg/customHP/uploads/des_month/437_177... https://wikitravel.org/customHP/uploads/des_month/437_1773573749.jpg — 200 — 54.9 KiB — 23 ms — h3https://wikitravel.org/customHP/uploads/des_month/438_1773574681.jpg/customHP/uploads/des_month/438_177... https://wikitravel.org/customHP/uploads/des_month/438_1773574681.jpg — 200 — 85.3 KiB — 24 ms — h3https://cdn.cookielaw.org/consent/fe7a5604-d518-47e1-b6a0-3aeac6f157d5/fe7a5604-d518-47e1-b6a0-3aeac6f157d5.jsoncdn.cookielaw.org/consent/fe7a5604-... https://cdn.cookielaw.org/consent/fe7a5604-d518-47e1-b6a0-3aeac6f157d5/fe7a5604-d518-47e1-b6a0-3aeac6f157d5.json — 200 — 2.6 KiB — 32 ms — h2https://wikitravel.org/customHP/uploads/des_month/441_1776349536.jpg/customHP/uploads/des_month/441_177... https://wikitravel.org/customHP/uploads/des_month/441_1776349536.jpg — 200 — 30.4 KiB — 19 ms — h3https://wikitravel.org/customHP/uploads/des_month/436_1770462654.jpg/customHP/uploads/des_month/436_177... https://wikitravel.org/customHP/uploads/des_month/436_1770462654.jpg — 200 — 54.0 KiB — 16 ms — h3https://wikitravel.org/customHP/uploads/des_month/439_1773575057.jpg/customHP/uploads/des_month/439_177... https://wikitravel.org/customHP/uploads/des_month/439_1773575057.jpg — 200 — 35.0 KiB — 22 ms — h3https://wikitravel.org/customHP/uploads/des_top/26_1552331930.jpg/customHP/uploads/des_top/26_155233... https://wikitravel.org/customHP/uploads/des_top/26_1552331930.jpg — 200 — 19.4 KiB — 27 ms — 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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
68% of JavaScript execution is third-party
First-party Third-party 498ms · 448KB · $7/mo
f389d50a-32e0-478b-9d4b-2d4592528bea.edge.permutive.app
Other
Optional
Execution 186ms
Transfer 168 KB
Unused 14%
Monthly Cost $2/mo
Unattributable
Other
Optional
Execution 152ms
Transfer 0 KB
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 86ms
Transfer 156 KB
Unused 43%
Monthly Cost $1/mo
OneTrust
Consent
Essential
Execution 73ms
Transfer 124 KB
Unused 54%
Monthly Cost $1/mo

68% 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.

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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

54% of OneTrust'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

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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