speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time. Follow us on Mastodon or Bluesky.

Charts Compare Measurement runs Embed a score Open to Work

typescriptlang.org

https://www.typescriptlang.org/

100 100 100 100 ✓AXE ✓CWV

Ranks Overall #6 Developer Tooling #1

Data from Sep 14, 2026, 5:49 PM UTC old Measured every 2 days · 10 runs since Aug 27, 2026

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

Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).

Stack

Gatsby 5.16.1 Built with Gatsby 5.16.1
Uses ReactReact
GitHub Pages Hosted by GitHub Pages

Filmstrip LAB Throttled

How the page drew during the measured load, at 8 points across 3.00 s. Compare this filmstrip against another site.

  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

Lighthouse Scores LAB Simulated

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

Metrics LAB FIELD

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 (2026-08-16 → 2026-09-12), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 1.35 s good ↑ +106 ms (+8.5%) 1.25 s – 3.36 s 1.25 s good 92% 4.7% 3.3%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 95 ms good 94% 4.6% 1.4%
CLS CWV Cumulative Layout Shift 0.002 good ↓ -0.010 (-83.3%) 0.002 – 0.013 0.010 good 87.9% 3.4% 8.7%
TBT Total Blocking Time 46 ms good ↓ -1 ms (-2.1%) 21 ms – 51 ms n/a —
FCP First Contentful Paint 1.23 s good ↓ -5 ms (-0.4%) 1.23 s – 2.71 s 1.19 s good 86.7% 7.7% 5.6%
Speed Index 1.23 s good ↓ -5 ms (-0.4%) 1.23 s – 2.71 s n/a —
TTFB Time to First Byte 602 ms good → no change 602 ms – 609 ms 765 ms good 76.3% 15.7% 8%

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.

time to first byte 577 ms
element render delay 254 ms

LCP LAB Simulated vs LCP FIELD

Lab 1.35 s
Field p75 1.25 s

The lab LCP is 1.08× the field p75 — real users likely have similar hardware or network connectivity to the lab test.

Page weight

Metric Value Change / range Trend
Page Weight 589 kB ↓ -3.3 kB (-0.6%) 588 kB – 592 kB
Requests 23 → no change 23 – 23
Third-party Weight 184 kB ↓ -3.4 kB (-1.9%) 184 kB – 187 kB
Third-party CPU 2 ms ↓ -1 ms (-31%) significant 2 ms – 3 ms
Unused JS 128 kB ↓ -2.1 kB (-1.6%) 128 kB – 131 kB
Unused CSS 29.4 kB → no change 29.4 kB – 29.4 kB

By resource type

Type Transfer Share Size Requests
script 52.2% 308 kB 7
font 30.6% 180 kB 5
document 12% 70.9 kB 1
image 2.8% 16.8 kB 2
other 1.3% 7.4 kB 5
stylesheet 1% 6.1 kB 1
Total 589 kB 23

Third parties 2 entities

Entity Transfer Size Main thread Simulated
office.net font 130 kB 0 ms
azurefd.net script 53.5 kB 2 ms
Total 184 kB 2 ms

Without JavaScript

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

Scripts disabled
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 902 ms ↓ -41 ms (-4.4%) 627 ms – 943 ms
Long Tasks 4 → no change 4 – 4
DOM Elements 1,414 → no change 1,414 – 1,414
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 0
A11y Failures 0 → no change 0 – 0
A11y Failing Nodes 0 → no change 0 – 0

Main thread work

Task Time Share Duration Simulated
script evaluation 32% 290 ms
style layout 27% 246 ms
other 20% 183 ms
script parse compile 10% 94 ms
paint composite render 5% 46 ms
parse HTML 5% 42 ms
Total 902 ms

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 2024 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

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 1.23 s 94 ms 0.010 1.17 s 762 ms
2026-08-29 1.24 s 96 ms 0.010 1.18 s 746 ms
2026-08-22 1.26 s 96 ms 0.010 1.21 s 765 ms
2026-08-15 1.25 s 95 ms 0.010 1.19 s 775 ms
2026-08-08 1.30 s 95 ms 0.010 1.24 s 837 ms
2026-08-01 1.30 s 95 ms 0.010 1.24 s 861 ms
2026-07-25 1.30 s 96 ms 0.010 1.23 s 862 ms
2026-07-18 1.31 s 97 ms 0.010 1.25 s 859 ms
2026-07-11 1.30 s 99 ms 0.010 1.24 s 808 ms
2026-07-04 1.31 s 104 ms 0.010 1.26 s 796 ms
2026-06-27 1.31 s 106 ms 0.010 1.26 s 778 ms
2026-06-20 1.36 s 111 ms 0.010 1.31 s 801 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 14, 2026, 5:49 PM UTC 100 1.35 s 0.002 46 ms 589 kB 3/3 ±1 2,464 -1% 52.1s Wayback
Sep 12, 2026, 7:02 AM UTC 100 1.25 s 0.012 47 ms 592 kB 3/3 ±1 2,358 -5% 51s Wayback
Sep 9, 2026, 11:00 PM UTC 99 1.58 s 0.002 37 ms 588 kB 3/3 ±1 2,257 -9% 24.9s Wayback
Sep 7, 2026, 10:34 PM UTC 99 2.11 s 0.013 47 ms 589 kB 3/3 ±1 2,433 -2% 25.5s Wayback
Sep 5, 2026, 8:05 PM UTC 90 3.01 s 0.002 39 ms 588 kB 3/3 ±13 2,642 +6% 25.6s Wayback
Sep 4, 2026, 6:14 PM UTC 100 1.39 s 0.002 48 ms 589 kB 3/3 ±10 2,295 -8% 26.5s Wayback
Sep 3, 2026, 6:57 AM UTC 94 2.64 s 0.013 51 ms 592 kB 3/3 ±1 2,484 0% 26.1s Wayback
Sep 2, 2026, 3:08 AM UTC 95 2.40 s 0.002 40 ms 589 kB 3/3 ±6 2,498 +1% 25.9s Wayback
Aug 31, 2026, 10:31 PM UTC 93 2.70 s 0.002 45 ms 589 kB 3/3 ±7 2,369 -5% 25.1s Wayback
Aug 27, 2026, 7:02 PM UTC 88 3.36 s 0.002 21 ms 589 kB 3/3 ±12 2,990 +20% 23.2s Wayback