pages.github.com
Ranks Overall #890 Developer Tooling #17 Web Hosts #1
Data from Oct 6, 2026, 11:15 PM UTC old Measured every 2 days · 25 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
Wayback Machine
https://docs.github.com/en/pages.
Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. The redirect is temporary (302/303/307), so it is treated as a detour rather than a move and history stays here.
Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).
Stack
Filmstrip LAB Throttled
How the page drew during the measured load, at 8 points across 6.83 s. Compare this filmstrip against another site.
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854 ms
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1.71 s
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2.56 s
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3.42 s
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3.73 s
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5.13 s
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5.98 s
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6.83 s
Lighthouse Scores LAB Simulated
Metrics LAB FIELD
Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-09-07 → 2026-10-04), url-level.
| Metric | Lab Simulated | Field | |||
|---|---|---|---|---|---|
| Value | Change / range | Trend | p75 | Distribution | |
| LCP CWV Largest Contentful Paint | 11.63 s poor | ↑ +1066 ms (+10.1%) significant 8.87 s – 11.87 s | 1.81 s good | 85.8% 8.1% 6.1% | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | 352 ms needs work | 7% 86.1% 7% | |
| CLS CWV Cumulative Layout Shift | 0.020 good | ↓ -0.151 (-88.3%) significant 0 – 0.171 | 0 good | 83.7% 15.5% 0.8% | |
| TBT Total Blocking Time | 162 ms good | ↓ -182 ms (-52.9%) significant 162 ms – 570 ms | n/a | — | |
| FCP First Contentful Paint | 3.76 s poor | ↑ +1122 ms (+42.5%) significant 2.40 s – 3.78 s | 1.56 s good | 80.5% 11.9% 7.6% | |
| Speed Index | 3.76 s needs work | ↑ +1065 ms (+39.5%) significant 2.40 s – 3.78 s | n/a | — | |
| TTFB Time to First Byte | 609 ms good | ↓ -12 ms (-1.9%) 602 ms – 621 ms | 764 ms good | 76.5% 16.1% 7.4% | |
LCP Subparts LAB Throttled
The subparts attribute LCP to your server, resource discovery, download, or rendering. They come from one throttled load, the same one as the filmstrip, so they add up to that load’s LCP rather than the simulated Lab LCP above.
LCP LAB Simulated vs LCP FIELD
The lab LCP is 6.41× the field p75 — real users likely have above-average hardware or network connectivity.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 3.73 MB | ↓ -2.4 kB (-0.1%) 3.45 MB – 3.89 MB | |
| Requests | 51 | → no change 50 – 57 | |
| Third-party Weight | 0 B | → no change 0 B – 0 B | |
| Third-party CPU | 0 ms | → no change 0 ms – 0 ms | |
| Unused JS | 164 kB | ↓ -12.6 kB (-7.3%) 112 kB – 210 kB | |
| Unused CSS | 135 kB | ↓ -8 B 97.0 kB – 135 kB |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| image | 73.7% | 2.75 MB | 17 | |
| script | 13.5% | 505 kB | 17 | |
| font | 7% | 260 kB | 3 | |
| stylesheet | 4.7% | 177 kB | 6 | |
| document | 0.6% | 20.8 kB | 2 | |
| other | 0.4% | 16.2 kB | 6 | |
| Total | 3.73 MB | 51 |
Without JavaScript
The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.
0% of pixels differ — they are identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 2.10 s | ↑ +25 ms (+1.2%) 1.63 s – 2.11 s | |
| Long Tasks | 6 | ↓ -1 (-14.3%) 6 – 9 | |
| DOM Elements | 235 | → no change 235 – 236 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 0 | |
| A11y Failures | 1 | → no change 0 – 1 | |
| A11y Failing Nodes | 1 | → no change 0 – 1 |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 579 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Accessibility failures 1 of 28 audits
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label-content-name-mismatch— Elements with visible text labels do not have matching accessible names. 1 node
Best Practices failures 2 of 18 audits
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errors-in-console— Browser errors were logged to the console 1 item -
valid-source-maps— Missing source maps for large first-party JavaScript 1 item
Hygiene
Measurement log
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-10-03 | 1.82 s | 353 ms | 0 | 1.56 s | 766 ms |
| 2026-09-26 | 1.84 s | 355 ms | 0 | 1.59 s | 781 ms |
| 2026-09-19 | 1.85 s | 355 ms | 0 | 1.60 s | 781 ms |
| 2026-09-12 | 1.86 s | 355 ms | 0 | 1.60 s | 783 ms |
| 2026-09-05 | 1.86 s | 355 ms | 0 | 1.60 s | 784 ms |
| 2026-08-29 | 1.85 s | 356 ms | 0 | 1.60 s | 774 ms |
| 2026-08-22 | 1.86 s | 360 ms | 0 | 1.61 s | 779 ms |
| 2026-08-15 | 1.87 s | 360 ms | 0 | 1.62 s | 776 ms |
| 2026-08-08 | 1.88 s | 363 ms | 0 | 1.62 s | 773 ms |
| 2026-08-01 | 1.89 s | 363 ms | 0 | 1.63 s | 783 ms |
| 2026-07-25 | 1.89 s | 362 ms | 0 | 1.63 s | 783 ms |
| 2026-07-18 | 1.90 s | 362 ms | 0 | 1.63 s | 783 ms |
Runs
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 6, 2026, 11:15 PM UTC | 64 | 11.63 s | 0.020 | 162 ms | 3.73 MB | 3/3 | ±11 | 3,289 +32% | 202.3s |
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| Oct 3, 2026, 9:04 PM UTC | 56 | 10.56 s | 0.171 | 344 ms | 3.73 MB | 3/3 | ±8 | 2,395 -4% | 71s |
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| Oct 1, 2026, 2:22 PM UTC | 58 | 11.77 s | 0 | 381 ms | 3.73 MB | 3/3 | ±2 | 2,466 -1% | 69s |
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| Sep 29, 2026, 11:18 AM UTC | 57 | 11.87 s | 0 | 385 ms | 3.73 MB | 3/3 | ±10 | 2,513 +1% | 69.4s |
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| Sep 25, 2026, 5:58 AM UTC | 57 | 10.88 s | 0.020 | 373 ms | 3.73 MB | 3/3 | ±11 | 2,487 0% | 69.1s |
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| Sep 23, 2026, 12:25 AM UTC | 61 | 11.29 s | 0.020 | 260 ms | 3.89 MB | 3/3 | ±6 | 2,985 +20% | 206.6s |
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| Sep 20, 2026, 11:28 PM UTC | 59 | 11.21 s | 0.020 | 313 ms | 3.89 MB | 3/3 | ±7 | 2,467 -1% | 71.5s |
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| Sep 18, 2026, 1:55 PM UTC | 54 | 11.11 s | 0.171 | 262 ms | 3.89 MB | 3/3 | ±24 | 2,946 +18% | 113.2s |
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| Sep 16, 2026, 9:35 AM UTC | 59 | 10.06 s | 0.171 | 246 ms | 3.87 MB | 3/3 | ±16 | 4,121 +66% | 65.4s |
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| Sep 14, 2026, 6:21 AM UTC | 66 | 10.20 s | 0 | 291 ms | 3.45 MB | 3/3 | ±0 | 2,908 +17% | 65s |
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| Sep 11, 2026, 11:33 PM UTC | 62 | 9.45 s | 0 | 399 ms | 3.46 MB | 3/3 | ±4 | 2,248 -10% | 69.5s |
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| Sep 9, 2026, 10:58 PM UTC | 68 | 9.94 s | 0.016 | 211 ms | 3.61 MB | 3/3 | ±2 | 3,486 +40% | 24.6s |
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| Sep 7, 2026, 10:32 PM UTC | 65 | 9.46 s | 0 | 316 ms | 3.45 MB | 3/3 | ±8 | 2,909 +17% | 71.2s |
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| Sep 5, 2026, 12:31 PM UTC | 66 | 9.45 s | 0 | 294 ms | 3.45 MB | 3/3 | ±15 | 2,917 +17% | 71.4s |
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| Sep 4, 2026, 1:05 AM UTC | 59 | 10.38 s | 0 | 505 ms | 3.45 MB | 3/3 | ±13 | 2,344 -6% | 206.9s |
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| Sep 2, 2026, 11:17 PM UTC | 59 | 9.49 s | 0 | 497 ms | 3.45 MB | 3/3 | ±11 | 2,333 -6% | 28.2s |
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| Sep 1, 2026, 10:47 PM UTC | 57 | 9.41 s | 0.171 | 308 ms | 3.45 MB | 3/3 | ±15 | 2,496 0% | 28.1s |
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| Aug 31, 2026, 9:04 PM UTC | 62 | 9.51 s | 0 | 393 ms | 3.45 MB | 3/3 | ±7 | 2,328 -6% | 207.1s |
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| Aug 27, 2026, 4:06 PM UTC | 62 | 9.48 s | 0 | 400 ms | 3.45 MB | 3/3 | ±33 | 2,239 -10% | 34.6s |
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| Aug 26, 2026, 7:45 AM UTC | 58 | 8.87 s | 0 | 570 ms | 3.45 MB | 3/3 | ±4 | 2,221 -11% | 209.9s |
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| Aug 25, 2026, 7:43 AM UTC | 60 | 9.92 s | 0 | 458 ms | 3.60 MB | 3/3 | ±1 | 2,199 -12% | 74.2s |
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| Aug 24, 2026, 6:56 AM UTC | 59 | 10.41 s | 0 | 506 ms | 3.45 MB | 3/3 | ±11 | 2,402 -3% | 27.1s |
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| Aug 23, 2026, 6:39 AM UTC | 63 | 9.46 s | 0 | 378 ms | 3.45 MB | 3/3 | ±13 | 3,233 +30% | 71.9s |
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| Aug 22, 2026, 6:38 AM UTC | 62 | 10.41 s | 0 | 417 ms | 3.45 MB | 3/3 | ±8 | 2,497 0% | 167.2s |
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| Aug 21, 2026, 5:44 AM UTC | 61 | 10.66 s | 0.016 | 439 ms | 3.60 MB | 3/3 | ±18 | 2,494 0% | 120.7s |
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