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Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
87
GRADE
B
FIX
1
REVIEW
5
PASS
9
INFO
2

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

Mobile Desktop
37
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
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.

4.68 s

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

7.43 s

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

166 ms

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

0.729

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

5.49 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.

7.61 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
9 PASS 5 REVIEW 1 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (597.6 KiB of 597.7 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
C
Image Optimization
Action
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://www.bis.org/img/hl/ph_fsibriefs30.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/bis-logo-short.gif is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/homepage/bisihub.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/ymabii/fsi.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/ymabii/inno_hub.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/hl/ph_sp260825.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/homepage/bcbs.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.bis.org/img/ymabii/vacancies.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 284 KB
0 oversized -0 KB
11 legacy format
8 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

C
JS Execution Cost
Action
1603ms total JS execution
REVIEW
1603ms total JS execution
Warning::
https://www.bis.org/: 473ms CPU time
Warning::
https://www.bis.org/application-c64c47ced99e069e6a...: 427ms CPU time
Warning::
Unattributable: 426ms CPU time
Info::
https://www.bis.org/js/jquery3.js: 179ms CPU time
Info::
https://cdn.matomo.cloud/bis.matomo.cloud/matomo.j...: 97ms CPU time
Warning::
Third-party scripts: 1603ms (100% of total)

Main Thread Breakdown

Other 27% Script Evaluation 27% Style & Layout 21% Rendering 11% Script Parsing & Compilation 8% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.bis.org/473ms0ms0ms3rd
https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.js427ms252ms83ms3rd
Unattributable426ms27ms0ms3rd
https://www.bis.org/js/jquery3.js179ms86ms13ms3rd
https://cdn.matomo.cloud/bis.matomo.cloud/matomo.js97ms66ms27ms3rd
B
JS Bundles
6 scripts, 118 KB unused
REVIEW
6 scripts, 118 KB unused
Warning::
https://www.bis.org/application-c64c47ced99e069e6a...: 81 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.matomo.cloud/bis.matomo.cloud/matomo.j...: 37 KB unused (66%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 118 KB
118 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.js112 KB81 KB (72%)✓3rd
https://cdn.matomo.cloud/bis.matomo.cloud/matomo.js57 KB37 KB (66%)✓3rd
https://www.bis.org/js/jquery3.js30 KB—✓3rd
https://www.bis.org/js/modernizr.custom.js3 KB—✓3rd
https://www.bis.org/bis_original/bis/standard-pretty-4cdc8e5d8567b62371db0d5853b6fd2d2363f1126e880919f0d2fa3ff8b0acdb.js7 KB—✓3rd
https://bis.matomo.cloud/plugins/HeatmapSessionRecording/configs.php?idsite=1&trackerid=sxRn9d&url=https%3A%2F%2Fwww.bis.org%2F0 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
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
no-cache
REVIEW
no-cache
Info::
Cache-Control header is set
Got: no-cache
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-cache

DirectiveValueMeaning
no-cache—Cache but always revalidate first
A+
Page Weight Budget
598 KB transferred, 44 requests
PASS
598 KB transferred, 44 requests
Info::
Page weighs 1.4 MB (598 KB transferred)
Info::
44 HTTP requests
Info::
Estimated 0.12 g CO2 per page load
598 KB / 2.4 MB budget
598 KB transferred
44 requests
0.12 g CO2 per page load
Images 284.1 KiB 48%
JavaScript 209.2 KiB 35%
Fonts 57.4 KiB 10%
CSS 20.5 KiB 3%
Other 16.5 KiB 3%
HTML 5.3 KiB 1%
Other 4.6 KiB 1%
Other 142 B 0%
0 2.4 MB 4.9 MB
Under budget
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 (57 KB)
PASS
4 fonts (57 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

57 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 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 4.7 s LCP 7.4 shttps://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2open-sans-v15-latin-reg... https://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2 — 14.1 KiB — 213 ms — font-display: swaphttps://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962dbiswebfonts.ttf https://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962d — 13.8 KiB — 294 ms — font-display: swaphttps://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2open-sans-v15-latin-700... https://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2 — 14.8 KiB — 476 ms — font-display: swaphttps://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2open-sans-v15-latin-600... https://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2 — 14.6 KiB — 298 ms — font-display: swap
open-sans-v15-latin-reg... woff2 swap
Size 14 KB
Load time 213 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
biswebfonts.ttf ttf swap
Size 14 KB
Load time 294 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
open-sans-v15-latin-700... woff2 swap
Size 15 KB
Load time 476 ms
Start 1.9 s
Risk FOUT — text flashes from fallback to web font
open-sans-v15-latin-600... woff2 swap
Size 15 KB
Load time 298 ms
Start 1.9 s
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)

Fixing the unchecked items could save ~4 KB and ~8 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
44 resources · 598 KB · 118 KB savings available
PASS
44 resources · 598 KB · 118 KB savings available
Info::
Within 1MB page-weight target
Got: 598 KB
Info::
~118 KB of savings available
Warning::
43 third-party resources (100% of weight)
44 resources · 597.7 KiB · 43 third-party Within 1MB page-weight target
Image 48% · 289.1 KiB
JavaScript 35% · 209.2 KiB
Font 10% · 57.4 KiB
CSS 3% · 20.5 KiB
Other 3% · 16.2 KiB
Document 1% · 5.3 KiB

~118.1 KiB of savings available

Remove unused JavaScript: 118.1 KiB
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
44 requests over 4256ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 4.7 s LCP 7.4 shttps://bis.org// https://bis.org/ — 302 — 98 B — 466 ms — http/1.1https://www.bis.org/www.bis.org/ https://www.bis.org/ — 200 — 5.3 KiB — 467 ms — http/1.1https://www.bis.org/bis_original/bis/bis-262d81e317cbfa091209278241285c98d68fd0108063707e26ed5056b5a8a9c7.csswww.bis.org/bis_original/bis/bis-26... https://www.bis.org/bis_original/bis/bis-262d81e317cbfa091209278241285c98d68fd0108063707e26ed5056b5a8a9c7.css — 200 — 13.4 KiB — 166 ms — http/1.1https://www.bis.org/bis_original/datepicker-2b8b830d9c7f6d44e13429eb6f9765b328252be7861d72d47fff747eed394520.csswww.bis.org/bis_original/datepicker... https://www.bis.org/bis_original/datepicker-2b8b830d9c7f6d44e13429eb6f9765b328252be7861d72d47fff747eed394520.css — 200 — 1.1 KiB — 324 ms — http/1.1https://www.bis.org/bis_original/select2-9f92f610bb1b5969b636a4d9c11476007c07643dfa60decc107ec99c81529f51.csswww.bis.org/bis_original/select2-9f... https://www.bis.org/bis_original/select2-9f92f610bb1b5969b636a4d9c11476007c07643dfa60decc107ec99c81529f51.css — 200 — 2.2 KiB — 467 ms — http/1.1https://www.bis.org/application-7aad27a6997b61c1490ab5b33b9a9a23d7ae915d79bd20c9b87fb5f87797e242.csswww.bis.org/application-7aad27a6997... https://www.bis.org/application-7aad27a6997b61c1490ab5b33b9a9a23d7ae915d79bd20c9b87fb5f87797e242.css — 200 — 1.0 KiB — 462 ms — http/1.1https://www.bis.org/js/jquery3.jswww.bis.org/js/jquery3.js https://www.bis.org/js/jquery3.js — 200 — 30.1 KiB — 654 ms — http/1.1https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.jswww.bis.org/application-c64c47ced99... https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.js — 200 — 112.4 KiB — 823 ms — http/1.1https://www.bis.org/js/modernizr.custom.jswww.bis.org/js/modernizr.custom.js https://www.bis.org/js/modernizr.custom.js — 200 — 2.5 KiB — 494 ms — http/1.1https://www.bis.org/bis_original/bis/standard-pretty-4cdc8e5d8567b62371db0d5853b6fd2d2363f1126e880919f0d2fa3ff8b0acdb.jswww.bis.org/bis_original/bis/standa... https://www.bis.org/bis_original/bis/standard-pretty-4cdc8e5d8567b62371db0d5853b6fd2d2363f1126e880919f0d2fa3ff8b0acdb.js — 200 — 7.2 KiB — 627 ms — http/1.1https://www.bis.org/bis_original/bis/homepage-bdcd853a1404128470207f61eddcb76f726c63fcbe75233415617a3bea6493e7.csswww.bis.org/bis_original/bis/homepa... https://www.bis.org/bis_original/bis/homepage-bdcd853a1404128470207f61eddcb76f726c63fcbe75233415617a3bea6493e7.css — 200 — 1.8 KiB — 465 ms — http/1.1https://www.bis.org/img/icons/closeX.pngwww.bis.org/img/icons/closeX.png https://www.bis.org/img/icons/closeX.png — 200 — 3.5 KiB — 168 ms — http/1.1https://www.bis.org/img/bis-logo-short.gifwww.bis.org/img/bis-logo-short.gif https://www.bis.org/img/bis-logo-short.gif — 200 — 4.0 KiB — 159 ms — http/1.1https://www.bis.org/img/homepage/bcbs.jpgwww.bis.org/img/homepage/bcbs.jpg https://www.bis.org/img/homepage/bcbs.jpg — 200 — 56.1 KiB — 469 ms — http/1.1https://www.bis.org/img/homepage/bisihub.jpgwww.bis.org/img/homepage/bisihub.jp... https://www.bis.org/img/homepage/bisihub.jpg — 200 — 15.8 KiB — 315 ms — http/1.1https://www.bis.org/img/ymabii/vacancies.jpgwww.bis.org/img/ymabii/vacancies.jp... https://www.bis.org/img/ymabii/vacancies.jpg — 200 — 12.4 KiB — 170 ms — http/1.1https://www.bis.org/img/ymabii/fsi.jpgwww.bis.org/img/ymabii/fsi.jpg https://www.bis.org/img/ymabii/fsi.jpg — 200 — 7.7 KiB — 171 ms — http/1.1https://www.bis.org/img/ymabii/inno_hub.jpgwww.bis.org/img/ymabii/inno_hub.jpg https://www.bis.org/img/ymabii/inno_hub.jpg — 200 — 6.0 KiB — 163 ms — http/1.1https://www.bis.org/bis_original/shared/print-5dd6ea242dd39ae99601c816cf6ba8e800e519f71ffa3f5a06a8ef0ddf95f597.csswww.bis.org/bis_original/shared/pri... https://www.bis.org/bis_original/shared/print-5dd6ea242dd39ae99601c816cf6ba8e800e519f71ffa3f5a06a8ef0ddf95f597.css — 200 — 983 B — 169 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2 — 200 — 14.1 KiB — 213 ms — http/1.1https://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962dwww.bis.org/fonts/biswebfonts/biswe... https://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962d — 200 — 13.8 KiB — 294 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2 — 200 — 14.8 KiB — 476 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2 — 200 — 14.6 KiB — 298 ms — http/1.1https://www.bis.org/api/menus.jsonwww.bis.org/api/menus.json https://www.bis.org/api/menus.json — 200 — 7.5 KiB — 306 ms — http/1.1https://www.bis.org/api/tables/homepage_highlightboxes_redesign.jsonwww.bis.org/api/tables/homepage_hig... https://www.bis.org/api/tables/homepage_highlightboxes_redesign.json — 200 — 1.0 KiB — 327 ms — http/1.1https://www.bis.org/api/tables/homepage_speeches_bisspeeches.jsonwww.bis.org/api/tables/homepage_spe... https://www.bis.org/api/tables/homepage_speeches_bisspeeches.json — 200 — 952 B — 343 ms — http/1.1https://www.bis.org/api/tables/homepage_speeches_cbspeeches.jsonwww.bis.org/api/tables/homepage_spe... https://www.bis.org/api/tables/homepage_speeches_cbspeeches.json — 200 — 725 B — 422 ms — http/1.1https://www.bis.org/api/tables/homepage_research_bispubls.jsonwww.bis.org/api/tables/homepage_res... https://www.bis.org/api/tables/homepage_research_bispubls.json — 200 — 955 B — 432 ms — http/1.1https://www.bis.org/api/tables/homepage_statistics_statspubls.jsonwww.bis.org/api/tables/homepage_sta... https://www.bis.org/api/tables/homepage_statistics_statspubls.json — 200 — 661 B — 457 ms — http/1.1https://www.bis.org/api/tables/homepage_bcbs_bcbspubls.jsonwww.bis.org/api/tables/homepage_bcb... https://www.bis.org/api/tables/homepage_bcbs_bcbspubls.json — 200 — 809 B — 482 ms — http/1.1
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s FCP 4.7 s LCP 7.4 shttps://bis.org// https://bis.org/ — 302 — 98 B — 466 ms — http/1.1https://www.bis.org/www.bis.org/ https://www.bis.org/ — 200 — 5.3 KiB — 467 ms — http/1.1https://www.bis.org/bis_original/bis/bis-262d81e317cbfa091209278241285c98d68fd0108063707e26ed5056b5a8a9c7.csswww.bis.org/bis_original/bis/bis-26... https://www.bis.org/bis_original/bis/bis-262d81e317cbfa091209278241285c98d68fd0108063707e26ed5056b5a8a9c7.css — 200 — 13.4 KiB — 166 ms — http/1.1https://www.bis.org/bis_original/datepicker-2b8b830d9c7f6d44e13429eb6f9765b328252be7861d72d47fff747eed394520.csswww.bis.org/bis_original/datepicker... https://www.bis.org/bis_original/datepicker-2b8b830d9c7f6d44e13429eb6f9765b328252be7861d72d47fff747eed394520.css — 200 — 1.1 KiB — 324 ms — http/1.1https://www.bis.org/bis_original/select2-9f92f610bb1b5969b636a4d9c11476007c07643dfa60decc107ec99c81529f51.csswww.bis.org/bis_original/select2-9f... https://www.bis.org/bis_original/select2-9f92f610bb1b5969b636a4d9c11476007c07643dfa60decc107ec99c81529f51.css — 200 — 2.2 KiB — 467 ms — http/1.1https://www.bis.org/application-7aad27a6997b61c1490ab5b33b9a9a23d7ae915d79bd20c9b87fb5f87797e242.csswww.bis.org/application-7aad27a6997... https://www.bis.org/application-7aad27a6997b61c1490ab5b33b9a9a23d7ae915d79bd20c9b87fb5f87797e242.css — 200 — 1.0 KiB — 462 ms — http/1.1https://www.bis.org/js/jquery3.jswww.bis.org/js/jquery3.js https://www.bis.org/js/jquery3.js — 200 — 30.1 KiB — 654 ms — http/1.1https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.jswww.bis.org/application-c64c47ced99... https://www.bis.org/application-c64c47ced99e069e6a585aba40bd1b96a5b219eb84c2154d66dfec4092423576.js — 200 — 112.4 KiB — 823 ms — http/1.1https://www.bis.org/js/modernizr.custom.jswww.bis.org/js/modernizr.custom.js https://www.bis.org/js/modernizr.custom.js — 200 — 2.5 KiB — 494 ms — http/1.1https://www.bis.org/bis_original/bis/standard-pretty-4cdc8e5d8567b62371db0d5853b6fd2d2363f1126e880919f0d2fa3ff8b0acdb.jswww.bis.org/bis_original/bis/standa... https://www.bis.org/bis_original/bis/standard-pretty-4cdc8e5d8567b62371db0d5853b6fd2d2363f1126e880919f0d2fa3ff8b0acdb.js — 200 — 7.2 KiB — 627 ms — http/1.1https://www.bis.org/bis_original/bis/homepage-bdcd853a1404128470207f61eddcb76f726c63fcbe75233415617a3bea6493e7.csswww.bis.org/bis_original/bis/homepa... https://www.bis.org/bis_original/bis/homepage-bdcd853a1404128470207f61eddcb76f726c63fcbe75233415617a3bea6493e7.css — 200 — 1.8 KiB — 465 ms — http/1.1https://www.bis.org/img/icons/closeX.pngwww.bis.org/img/icons/closeX.png https://www.bis.org/img/icons/closeX.png — 200 — 3.5 KiB — 168 ms — http/1.1https://www.bis.org/img/bis-logo-short.gifwww.bis.org/img/bis-logo-short.gif https://www.bis.org/img/bis-logo-short.gif — 200 — 4.0 KiB — 159 ms — http/1.1https://www.bis.org/img/homepage/bcbs.jpgwww.bis.org/img/homepage/bcbs.jpg https://www.bis.org/img/homepage/bcbs.jpg — 200 — 56.1 KiB — 469 ms — http/1.1https://www.bis.org/img/homepage/bisihub.jpgwww.bis.org/img/homepage/bisihub.jp... https://www.bis.org/img/homepage/bisihub.jpg — 200 — 15.8 KiB — 315 ms — http/1.1https://www.bis.org/img/ymabii/vacancies.jpgwww.bis.org/img/ymabii/vacancies.jp... https://www.bis.org/img/ymabii/vacancies.jpg — 200 — 12.4 KiB — 170 ms — http/1.1https://www.bis.org/img/ymabii/fsi.jpgwww.bis.org/img/ymabii/fsi.jpg https://www.bis.org/img/ymabii/fsi.jpg — 200 — 7.7 KiB — 171 ms — http/1.1https://www.bis.org/img/ymabii/inno_hub.jpgwww.bis.org/img/ymabii/inno_hub.jpg https://www.bis.org/img/ymabii/inno_hub.jpg — 200 — 6.0 KiB — 163 ms — http/1.1https://www.bis.org/bis_original/shared/print-5dd6ea242dd39ae99601c816cf6ba8e800e519f71ffa3f5a06a8ef0ddf95f597.csswww.bis.org/bis_original/shared/pri... https://www.bis.org/bis_original/shared/print-5dd6ea242dd39ae99601c816cf6ba8e800e519f71ffa3f5a06a8ef0ddf95f597.css — 200 — 983 B — 169 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-regular.woff2 — 200 — 14.1 KiB — 213 ms — http/1.1https://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962dwww.bis.org/fonts/biswebfonts/biswe... https://www.bis.org/fonts/biswebfonts/biswebfonts.ttf?m0962d — 200 — 13.8 KiB — 294 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-700.woff2 — 200 — 14.8 KiB — 476 ms — http/1.1https://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2www.bis.org/fonts/opensans/open-san... https://www.bis.org/fonts/opensans/open-sans-v15-latin-600.woff2 — 200 — 14.6 KiB — 298 ms — http/1.1https://www.bis.org/api/menus.jsonwww.bis.org/api/menus.json https://www.bis.org/api/menus.json — 200 — 7.5 KiB — 306 ms — http/1.1https://www.bis.org/api/tables/homepage_highlightboxes_redesign.jsonwww.bis.org/api/tables/homepage_hig... https://www.bis.org/api/tables/homepage_highlightboxes_redesign.json — 200 — 1.0 KiB — 327 ms — http/1.1https://www.bis.org/api/tables/homepage_speeches_bisspeeches.jsonwww.bis.org/api/tables/homepage_spe... https://www.bis.org/api/tables/homepage_speeches_bisspeeches.json — 200 — 952 B — 343 ms — http/1.1https://www.bis.org/api/tables/homepage_speeches_cbspeeches.jsonwww.bis.org/api/tables/homepage_spe... https://www.bis.org/api/tables/homepage_speeches_cbspeeches.json — 200 — 725 B — 422 ms — http/1.1https://www.bis.org/api/tables/homepage_research_bispubls.jsonwww.bis.org/api/tables/homepage_res... https://www.bis.org/api/tables/homepage_research_bispubls.json — 200 — 955 B — 432 ms — http/1.1https://www.bis.org/api/tables/homepage_statistics_statspubls.jsonwww.bis.org/api/tables/homepage_sta... https://www.bis.org/api/tables/homepage_statistics_statspubls.json — 200 — 661 B — 457 ms — http/1.1https://www.bis.org/api/tables/homepage_bcbs_bcbspubls.jsonwww.bis.org/api/tables/homepage_bcb... https://www.bis.org/api/tables/homepage_bcbs_bcbspubls.json — 200 — 809 B — 482 ms — http/1.1https://www.bis.org/api/tables/homepage_othercommitees_publs.jsonwww.bis.org/api/tables/homepage_oth... https://www.bis.org/api/tables/homepage_othercommitees_publs.json — 200 — 863 B — 503 ms — http/1.1https://www.bis.org/api/tables/homepage_ihub_projects.jsonwww.bis.org/api/tables/homepage_ihu... https://www.bis.org/api/tables/homepage_ihub_projects.json — 200 — 728 B — 581 ms — http/1.1https://www.bis.org/api/tables/homepage_ihub_publs.jsonwww.bis.org/api/tables/homepage_ihu... https://www.bis.org/api/tables/homepage_ihub_publs.json — 200 — 779 B — 588 ms — http/1.1https://www.bis.org/api/tables/homepage_announcements.jsonwww.bis.org/api/tables/homepage_ann... https://www.bis.org/api/tables/homepage_announcements.json — 200 — 625 B — 611 ms — http/1.1https://www.bis.org/api/documents/index.jsonwww.bis.org/api/documents/index.jso... https://www.bis.org/api/documents/index.json — 200 — 585 B — 619 ms — http/1.1https://www.bis.org/img/hl/ph_sp260825.jpgwww.bis.org/img/hl/ph_sp260825.jpg https://www.bis.org/img/hl/ph_sp260825.jpg — 200 — 12.5 KiB — 318 ms — http/1.1https://www.bis.org/img/hl/ph_fsibriefs30.jpgwww.bis.org/img/hl/ph_fsibriefs30.j... https://www.bis.org/img/hl/ph_fsibriefs30.jpg — 200 — 36.7 KiB — 481 ms — http/1.1https://www.bis.org/img/hl/sh_p260316.jpgwww.bis.org/img/hl/sh_p260316.jpg https://www.bis.org/img/hl/sh_p260316.jpg — 200 — 26.9 KiB — 313 ms — http/1.1https://www.bis.org/img/hl/sh_qt2603b.jpgwww.bis.org/img/hl/sh_qt2603b.jpg https://www.bis.org/img/hl/sh_qt2603b.jpg — 200 — 102.4 KiB — 181 ms — http/1.1https://cdn.matomo.cloud/bis.matomo.cloud/matomo.jscdn.matomo.cloud/bis.matomo.cloud/m... https://cdn.matomo.cloud/bis.matomo.cloud/matomo.js — 200 — 56.8 KiB — 19 ms — h2https://www.bis.org/metrics/web.gif?uri=https%3A%2F%2Fwww.bis.org%2F&ref=&data=eyJkUmVsRGF0ZSI6MTUyMjc1NDU4MCwiZFRpdGxlIjoiQmFuayBmb3IgSW50ZW5hdGlvbmFsIFNldHRsZW1lbnRzIiwibWVudXMiOnt9LCJwUXJ5U3RyIjoiIiwicFJlZiI6IiIsInBVcmkiOiJodHRwczovL3d3dy5iaXMub3JnLyIsImRTZXJpZXNOdW0iOm51bGwsInRpbWUiOjE3NzY4MTM3MzYsImRGb3JtYXQiOiJXZWJwYWdlIiwiZExhbmciOiJlbiIsImNhdGVnb3JpZXMiOnsiY2F0MSI6WyJCSVMiXSwiY2F0MiI6Ik90aGVyIiwiY2F0MyI6IkRlc2NyaXB0aXZlIn0sImRBdXRob3JzIjpbXSwiZEpFTGNvZGVzIjpbXSwiZExpc3RUYWdzIjpbXSwiZFRvcGljcyI6W10sImREYXlzRnJvbVJlbCI6Mjk0MH0=www.bis.org/metrics/web.gif?uri=htt... 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http/1.1https://bis.matomo.cloud/matomo.php?action_name=Bank%20for%20International%20Settlements&idsite=1&rec=1&r=903437&h=23&m=22&s=15&url=https%3A%2F%2Fwww.bis.org%2F&_id=1576d0eaf6f7d382&_idn=1&send_image=0&_refts=0&dimension1=Other&dimension2=BIS&dimension3=Descriptive&dimension4=null&dimension5=null&dimension6=null&dimension7=en&dimension8=1522754580&dimension9=null&dimension10=2940&pv_id=4QM6Oj&fa_pv=1&fa_fp[0][fa_vid]=k9iA1T&fa_fp[0][fa_fv]=1&fa_fp[1][fa_vid]=58JR6v&fa_fp[1][fa_fv]=1&pf_net=309&pf_srv=157&pf_tfr=2&pf_dm1=915&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823bis.matomo.cloud/matomo.php?action_... https://bis.matomo.cloud/matomo.php?action_name=Bank%20for%20International%20Settlements&idsite=1&rec=1&r=903437&h=23&m=22&s=15&url=https%3A%2F%2Fwww.bis.org%2F&_id=1576d0eaf6f7d382&_idn=1&send_image=0&_refts=0&dimension1=Other&dimension2=BIS&dimension3=Descriptive&dimension4=null&dimension5=null&dimension6=null&dimension7=en&dimension8=1522754580&dimension9=null&dimension10=2940&pv_id=4QM6Oj&fa_pv=1&fa_fp[0][fa_vid]=k9iA1T&fa_fp[0][fa_fv]=1&fa_fp[1][fa_vid]=58JR6v&fa_fp[1][fa_fv]=1&pf_net=309&pf_srv=157&pf_tfr=2&pf_dm1=915&uadata=%7B%22formFactors%22%3A%5B%22Desktop%22%5D%2C%22fullVersionList%22%3A%5B%7B%22brand%22%3A%22Not-A.Brand%22%2C%22version%22%3A%2224.0.0.0%22%7D%2C%7B%22brand%22%3A%22Chromium%22%2C%22version%22%3A%22146.0.7680.164%22%7D%5D%2C%22mobile%22%3Atrue%2C%22model%22%3A%22moto%20g%20power%20(2022)%22%2C%22platform%22%3A%22Android%22%2C%22platformVersion%22%3A%2211.0%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=412x823 — 204 — 142 B — 624 ms — h2https://bis.matomo.cloud/plugins/HeatmapSessionRecording/configs.php?idsite=1&trackerid=sxRn9d&url=https%3A%2F%2Fwww.bis.org%2Fbis.matomo.cloud/plugins/HeatmapSes... https://bis.matomo.cloud/plugins/HeatmapSessionRecording/configs.php?idsite=1&trackerid=sxRn9d&url=https%3A%2F%2Fwww.bis.org%2F — 200 — 269 B — 499 ms — h2https://www.bis.org/favicon-570124710617266452aaee59dc8fe89474345158607e5dd372d3f5389925fe99.icowww.bis.org/favicon-570124710617266... https://www.bis.org/favicon-570124710617266452aaee59dc8fe89474345158607e5dd372d3f5389925fe99.ico — 200 — 4.5 KiB — 1.2 s — http/1.1
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 1603ms · 205KB · CHF25/mo
www.bis.org
Other
Costly
Execution 473ms
Transfer 5 KB
Monthly Cost CHF7/mo
www.bis.org
Other
Costly
Execution 427ms
Transfer 112 KB
Unused 72%
Monthly Cost CHF7/mo
Unattributable
Other
Costly
Execution 426ms
Transfer 0 KB
Monthly Cost CHF7/mo
www.bis.org
Other
Optional
Execution 179ms
Transfer 30 KB
Monthly Cost CHF3/mo
Matomo
Analytics
Optional
Execution 97ms
Transfer 57 KB
Unused 66%
Monthly Cost CHF1/mo

These scripts may cost more than they're worth

  • www.bis.org adds 473ms and costs ~CHF7/month
  • www.bis.org adds 427ms and costs ~CHF7/month
  • Unattributable adds 426ms and costs ~CHF7/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.bis.org takes 473ms 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

www.bis.org takes 427ms 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

72% of www.bis.org'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

Unattributable takes 426ms 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

66% of Matomo'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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