developers.thegreenwebfoundation.org
https://developers.thegreenwebfoundation.org/
Ranks Overall #1,071 Built Awesome #828
Data from Sep 4, 2026, 11:50 PM UTC old Measured once a week · 3 runs since Aug 20, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Wayback Machine
Stack
Lighthouse Scores
Metrics Lighthouse, mobile
No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.
| Metric | Lab Lighthouse | ||
|---|---|---|---|
| Value | Change / range | Trend | |
| LCP CWV (estimate) Largest Contentful Paint | 1.73 s good | ↑ +24 ms (+1.4%) 1.70 s – 1.83 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0.028 good | → no change 0.028 – 0.028 | |
| TBT Total Blocking Time | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 1.73 s good | ↑ +738 ms (+74.6%) 989 ms – 1.73 s | |
| Speed Index | 1.73 s good | ↑ +738 ms (+74.6%) 989 ms – 1.73 s | |
| TTFB Time to First Byte | 509 ms good | ↓ -126 ms (-19.8%) significant 509 ms – 635 ms | |
LCP Subparts lab observed, unthrottled
The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is throttled.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 46.7 kB | ↑ +1.0 kB (+2.3%) 45.6 kB – 47.4 kB | |
| Requests | 11 | → no change 11 – 11 | |
| Third-party Weight | 19.3 kB | ↑ +588 B (+3.1%) 18.7 kB – 20.5 kB | |
| Third-party CPU | 8 ms | ↑ +2 ms (+26.7%) 6 ms – 8 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 11.5 kB | ↓ -14 B (-0.1%) 11.5 kB – 11.5 kB |
By resource type
- document 42.9% 20.0 kB · 1 req
- script 40.9% 19.1 kB · 3 req
- image 10.8% 5.0 kB · 2 req
- other 5.4% 2.5 kB · 5 req
Third parties 3 entities
19.3 kB transferred, 8 ms on the main thread.
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 327 ms | ↑ +71 ms (+27.8%) 256 ms – 327 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 314 | → no change 314 – 314 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 33 | → no change 33 – 33 | |
| A11y Failures | 2 | → no change 2 – 2 | |
| A11y Failing Nodes | 4 | → no change 4 – 4 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
33 violating nodes across 3 rules, 511 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
-
moderate
region— All page content should be contained by landmarks 29 nodes -
serious
link-name— Links must have discernible text 3 nodes -
moderate
landmark-one-main— Document should have one main landmark 1 node
Accessibility failures 2 of 23 audits
-
link-name— Links do not have a discernible name 3 nodes -
landmark-one-main— Document does not have a main landmark. 1 node
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 4, 2026, 11:50 PM UTC | 99 | 1.73 s | 0.028 | 0 ms | 46.7 kB | 3/3 | ±1 | 2,696 +9% | 21.5s |
|
|
| Aug 28, 2026, 11:29 PM UTC | 100 | 1.70 s | 0.028 | 0 ms | 45.6 kB | 3/3 | ±0 | 2,981 +20% | 20.8s |
|
|
| Aug 20, 2026, 9:29 PM UTC | 99 | 1.83 s | 0.028 | 0 ms | 47.4 kB | 3/3 | ±2 | 2,380 -4% | 23.8s |
|
Embed this score
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