pages.github.com

https://pages.github.com/

Data from Aug 21, 2026, 5:44 AM UTC — 12h old.

Web Hosts · 1 measurement · since Aug 21, 2026 · last attempt 12h

This URL redirects to https://docs.github.com/en/pages.

Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. Not yet confirmed as a move; it needs to lead to the same place on several consecutive runs first.

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

Built with Next.js

Hosted by GitHub Pages

Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-23 → 2026-08-19). This is what Google measures you on.

LCP 1.87 s good

INP 360 ms needs-improvement

CLS 0 good

Scores

Performance

no change

100

Accessibility

no change

Best Practices

no change

100

SEO

no change

Lab metrics Lighthouse, mobile

Metric	Current	Previous	Change	Best	Worst
LCP Largest Contentful Paint	10.66 s	—	—	10.66 s	10.66 s
CLS Cumulative Layout Shift	0.016	—	—	0.016	0.016
TBT Total Blocking Time	439 ms	—	—	439 ms	439 ms
FCP First Contentful Paint	2.40 s	—	—	2.40 s	2.40 s
Speed Index	2.40 s	—	—	2.40 s	2.40 s
TTFB Time to First Byte	602 ms	—	—	602 ms	602 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

element render delay 80 ms

resource load delay 9 ms

resource load duration 9 ms

time to first byte 4 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-07-23 → 2026-08-19). This is what Google measures you on.

Metric	p75	Rating	Distribution (good / needs work / poor)
LCP CWV	1.87 s	good	84.5% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run	360 ms	needs-improvement	6.5% good
CLS CWV	0	good	82.3% good
FCP	1.62 s	good	79% good
TTFB	782 ms	good	75.6% good

Metric

p75

Rating

Distribution (good / needs work / poor)

LCP CWV

1.87 s

good

84.5% good

INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run

360 ms

needs-improvement

6.5% good

CLS CWV

good

82.3% good

FCP

1.62 s

good

79% good

TTFB

782 ms

good

75.6% good

Lab vs field

Lab LCP 10.66 s · field p75 1.87 s · real users are 0.18× faster than the lab.

Field history 25 weeks

Weekly p75 from the CrUX History API, backfilled in a single request.

Week ending	LCP	INP	FCP	TTFB
2026-08-15	1.87 s	360 ms	1.62 s	776 ms
2026-08-08	1.88 s	363 ms	1.62 s	773 ms
2026-08-01	1.89 s	363 ms	1.63 s	783 ms
2026-07-25	1.89 s	362 ms	1.63 s	783 ms
2026-07-18	1.90 s	362 ms	1.63 s	783 ms
2026-07-11	1.92 s	363 ms	1.65 s	788 ms
2026-07-04	1.94 s	362 ms	1.67 s	792 ms
2026-06-27	1.95 s	361 ms	1.68 s	791 ms
2026-06-20	1.95 s	361 ms	1.68 s	786 ms
2026-06-13	1.93 s	361 ms	1.66 s	777 ms
2026-06-06	1.90 s	361 ms	1.65 s	764 ms
2026-05-30	1.89 s	365 ms	1.63 s	756 ms

Week ending

LCP

INP

CLS

FCP

TTFB

2026-08-15

1.87 s

360 ms

1.62 s

776 ms

2026-08-08

1.88 s

363 ms

1.62 s

773 ms

2026-08-01

1.89 s

363 ms

1.63 s

783 ms

2026-07-25

1.89 s

362 ms

1.63 s

783 ms

2026-07-18

1.90 s

362 ms

1.63 s

783 ms

2026-07-11

1.92 s

363 ms

1.65 s

788 ms

2026-07-04

1.94 s

362 ms

1.67 s

792 ms

2026-06-27

1.95 s

361 ms

1.68 s

791 ms

2026-06-20

1.95 s

361 ms

1.68 s

786 ms

2026-06-13

1.93 s

361 ms

1.66 s

777 ms

2026-06-06

1.90 s

361 ms

1.65 s

764 ms

2026-05-30

1.89 s

365 ms

1.63 s

756 ms

Page weight

Metric	Current	Previous	Change	Best	Worst
Page Weight	3.60 MB	—	—	3.60 MB	3.60 MB
Requests	57	—	—	57	57
Third-party Weight	0 B	—	—	0 B	0 B
Third-party CPU	0 ms	—	—	0 ms	0 ms
Unused JS	173.4 kB	—	—	173.4 kB	173.4 kB
Unused CSS	118.6 kB	—	—	118.6 kB	118.6 kB

By resource type

image 2.87 MB · 17 req

script 531.5 kB · 20 req

stylesheet 157.7 kB · 6 req

document 23.4 kB · 2 req

other 17.7 kB · 11 req

font 3.7 kB · 1 req

third party 3.60 MB · 57 req

Page health

Metric	Current	Previous	Change	Best	Worst
DOM Elements	235	—	—	235	235
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset	0	—	—	0	0
A11y Failures	0	—	—	0	0
A11y Failing Nodes	0	—	—	0	0

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 614 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When	Perf	LCP	CLS	TBT	Weight	Runs	Spread	Bench	Took
Aug 21, 2026, 5:44 AM UTC	61	10.66 s	0.016	439 ms	3.60 MB	3/3	±18	2,494	120.7s

When

Perf

LCP

CLS

TBT

Weight

Runs

Spread

Bench

Took

Aug 21, 2026, 5:44 AM UTC

10.66 s

0.016

439 ms

3.60 MB

3/3

±18

2,494

120.7s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show pages.github.com's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://pages.github.com/"></speedlify-score>