speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

esbuild.github.io

https://esbuild.github.io/

100 95 100 70 !AXE ✓CWV

Ranks Overall #931 Developer Tooling #27

Data from Sep 10, 2026, 5:41 AM UTC old Measured every 2 days · 9 runs since Aug 27, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

Stack

GitHub Pages Hosted by GitHub Pages

Lighthouse Scores

100
Performance
no change
95
Accessibility
no change
100
Best Practices
no change
70
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.00 s.

  1. 375 ms
  2. 750 ms
  3. 1.13 s
  4. 1.50 s
  5. 1.88 s
  6. 2.25 s
  7. 2.63 s
  8. 3.00 s

Metrics Lighthouse, mobile Chrome UX Report

Core Web Vitals: passing 3 of 3 assessed from real Chrome users.

Field figures are the p75 across real Chrome users over a 28-day trailing window (2026-08-09 → 2026-09-05), url-level. From the backfilled CrUX history rather than this measurement, which predates the API key.

Metric Lab Lighthouse Field Chrome UX Report
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 794 ms good ↓ -7 ms (-0.9%) 791 ms – 806 ms 709 ms good 95.6% 2.5% 2%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 93 ms good site-wide 97.2% 2% 0.8%
CLS CWV Cumulative Layout Shift 0 good → no change 0 – 0 0 good 100% 0% 0%
TBT Total Blocking Time 0 ms good → no change 0 ms – 0 ms n/a —
FCP First Contentful Paint 794 ms good ↓ -7 ms (-0.9%) 791 ms – 806 ms — —
Speed Index 794 ms good ↓ -7 ms (-0.9%) 791 ms – 806 ms n/a —
TTFB Time to First Byte 603 ms good → no change 603 ms – 619 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.

element render delay 43 ms
time to first byte 5 ms

Page weight

Metric Value Change / range Trend
Page Weight 7.7 kB ↓ -1 B 7.6 kB – 7.7 kB
Requests 3 → no change 3 – 3
Third-party Weight 0 B → no change 0 B – 0 B
Third-party CPU 0 ms → no change 0 ms – 0 ms
Unused JS 0 B → no change 0 B – 0 B
Unused CSS 0 B → no change 0 B – 0 B

By resource type

  • document 94.6% 7.3 kB · 1 req
  • image 5.4% 414 B · 1 req

Without JavaScript

The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.

Scripts disabled
As rendered

18.6% of pixels differ — parts of the page change. 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 465 ms ↓ -134 ms (-22.3%) 357 ms – 632 ms
Long Tasks 0 → no change 0 – 0
DOM Elements 217 → no change 217 – 217
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 1 → no change 1 – 1
A11y Failures 1 → no change 1 – 1
A11y Failing Nodes 2 → no change 2 – 2

Main thread work

other 204 ms
style layout 128 ms
paint composite render 101 ms
script evaluation 23 ms
parse HTML 7 ms
script parse compile 2 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 471 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 1 node

Accessibility failures 1 of 18 audits

  • target-size — Touch targets do not have sufficient size or spacing. 2 nodes

SEO failures 3 of 7 audits

  • meta-description — Document does not have a meta description
  • link-text — Links do not have descriptive text 1 item
  • crawlable-anchors — Links are not crawlable 2 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-09-05 709 ms 93 ms 0 693 ms 537 ms
2026-08-29 786 ms 88 ms 0 769 ms 562 ms
2026-08-22 733 ms 80 ms 0 722 ms 551 ms
2026-08-15 801 ms 88 ms 0 784 ms 593 ms
2026-08-08 862 ms 97 ms 0 821 ms 605 ms
2026-08-01 862 ms 112 ms 0 846 ms 642 ms
2026-07-25 883 ms 114 ms 0 875 ms 638 ms
2026-07-18 783 ms 115 ms 0 777 ms 642 ms
2026-07-11 853 ms 105 ms 0 826 ms 642 ms
2026-07-04 761 ms 95 ms 0 762 ms 601 ms
2026-06-27 721 ms 93 ms 0 741 ms 601 ms
2026-06-20 758 ms 85 ms 0 760 ms 601 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 10, 2026, 5:41 AM UTC 100 794 ms 0 0 ms 7.7 kB 3/3 ±0 2,390 -4% 26.1s Wayback
Sep 8, 2026, 12:58 AM UTC 100 801 ms 0 0 ms 7.7 kB 3/3 ±0 2,490 0% 21.5s Wayback
Sep 6, 2026, 12:40 AM UTC 100 793 ms 0 0 ms 7.7 kB 3/3 ±0 3,100 +25% 20.8s Wayback
Sep 4, 2026, 6:15 PM UTC 100 791 ms 0 0 ms 7.7 kB 3/3 ±0 2,331 -6% 23.4s Wayback
Sep 3, 2026, 11:58 AM UTC 100 801 ms 0 0 ms 7.7 kB 3/3 ±0 3,245 +31% 20.4s Wayback
Sep 3, 2026, 1:09 AM UTC TRACING_ALREADY_STARTED: An internal Chrome error occurred. Please restart Chrome and try re-running Lighthouse. 23.4s
Sep 1, 2026, 11:05 PM UTC 100 799 ms 0 0 ms 7.6 kB 3/3 ±0 2,316 -7% 21.5s Wayback
Aug 31, 2026, 9:22 PM UTC 100 793 ms 0 0 ms 7.7 kB 3/3 ±0 2,471 0% 21.4s Wayback
Aug 27, 2026, 6:58 PM UTC 100 806 ms 0 0 ms 7.7 kB 3/3 ±3 2,452 -1% 22.5s Wayback