Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
631 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.29 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
240 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.
1.08 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.
3.87 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 sFPage Weight BudgetAction5.0 MB transferred, 82 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
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.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
DJS BundlesAction18 scripts, 450 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.hrw.org/sites/default/files/js/js_QUgcdGzHvAgceeBVsQCKSEFghjGdgyLE1mwWIB_iCd4.js?scope=footer&delta=0&language=en&theme=hrw_design&include=eJyV0dFuwyAMBdAfIuWTEIGrYZXgyjbpsq9f2m6q9gR7NDq-2JBY4BNvN25oppci9_AulyVFyYF3SI2HS2PMXVGHsEA4NNx1KDdeqSIUxAyZ1Rta_48NJsBEQ47j1Z4qZNJUWbuMY9Vius4oG7_WThkcCgt9cbOJaV8N5_capVmuLsczOx4Qv6LEnVjU4dMqtavP0m-xXn5K9zfBVzIsB3frKxZsK_JTZCh9NP-43j02JT3n0d-s98k3JFUOxw | 181 KB | 91 KB (50%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7G2G6XTV4C&cx=c>m=4e64h1 | 178 KB | 69 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8G7WH8R2Z8&cx=c>m=4e64h1 | 159 KB | 64 KB (40%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-W5D7ZP | 163 KB | 63 KB (39%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-986013128&cx=c>m=4e64h1 | 137 KB | 56 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-953464708&cx=c>m=4e64h1 | 138 KB | 53 KB (39%) | ✓ | 3rd |
| https://connect.facebook.net/en_US/fbevents.js | 97 KB | 33 KB (34%) | ✓ | 3rd |
| https://open-analytics.hrw.org/js/container_MOFt5fSb.js | 63 KB | 21 KB (33%) | ✓ | 3rd |
| https://www.hrw.org/sites/default/files/google_tag/hrw_tag_manager/google_tag.script.js?tdu8ni | 1 KB | — | ✓ | 3rd |
| https://www.hrw.org/libraries/custom/simpleanalytics.js | 4 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction82 resources · 5.0 MB · 450 KB savings availableFIX
~449.6 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 82 resources | 5.0 MiB | ||||||
BImage Optimization37 images, 0 KB saveableREVIEW
CJS Execution CostAction1175ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.hrw.org/sites/default/files/js/js_QUgcdGzHvAgceeBVsQCKSEFghjGdgyLE1mwWIB_iCd4.js?scope=footer&delta=0&language=en&theme=hrw_design&include=eJyV0dFuwyAMBdAfIuWTEIGrYZXgyjbpsq9f2m6q9gR7NDq-2JBY4BNvN25oppci9_AulyVFyYF3SI2HS2PMXVGHsEA4NNx1KDdeqSIUxAyZ1Rta_48NJsBEQ47j1Z4qZNJUWbuMY9Vius4oG7_WThkcCgt9cbOJaV8N5_capVmuLsczOx4Qv6LEnVjU4dMqtavP0m-xXn5K9zfBVzIsB3frKxZsK_JTZCh9NP-43j02JT3n0d-s98k3JFUOxw | 250ms | 157ms | 13ms | 3rd |
| Unattributable | 202ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-W5D7ZP | 151ms | 133ms | 16ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-7G2G6XTV4C&cx=c>m=4e64h1 | 112ms | 90ms | 21ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-953464708&cx=c>m=4e64h1 | 108ms | 86ms | 9ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-8G7WH8R2Z8&cx=c>m=4e64h1 | 97ms | 83ms | 11ms | 3rd |
| https://www.hrw.org/ | 95ms | 15ms | 1ms | 3rd |
| https://www.hrw.org/libraries/custom/simpleanalytics.js | 83ms | 8ms | 0ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=AW-986013128&cx=c>m=4e64h1 | 77ms | 66ms | 10ms | 3rd |
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
No green hosting detected
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (203 KB)PASS
Web fonts
4
203 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
AHTTP Cachingmax-age=86400 (1 day)PASS
public, max-age=86400
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 86400 | Cache for 1 day |
Network Waterfall82 requests over 1771msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.hrw.org www.hrw.org | Other | 250ms | 181 KB | 50% | €3/mo | Costly |
Unattributable Unattributable | Other | 202ms | 0 KB | — | €2/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 151ms | 163 KB | 39% | €2/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 112ms | 178 KB | 39% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 108ms | 138 KB | 39% | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 97ms | 159 KB | 40% | €1/mo | Optional |
www.hrw.org www.hrw.org | Other | 95ms | 62 KB | — | €1/mo | Optional |
www.hrw.org www.hrw.org | Other | 83ms | 4 KB | — | €1/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 77ms | 137 KB | 41% | €1/mo | Optional |
These scripts may cost more than they're worth
- www.hrw.org adds 250ms and costs ~€3/month
- Unattributable adds 202ms and costs ~€2/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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.hrw.org takes 250ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
50% of www.hrw.org's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Unattributable takes 202ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev