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

azure.microsoft.com/en-us/products/app-service/static

https://azure.microsoft.com/en-us/products/app-service/static

31PERF 100A11Y 54BEST 85SEO ✓AXE !CWV

Ranks Overall #1,628 Developer Tooling #70 Web Hosts #9

Data from Oct 6, 2026, 11:00 PM UTC old Measured every 2 days · 26 runs since Aug 20, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Tame the Bots · 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

Uses ReactReactLit 3.3.3Lit 3.3.3

Filmstrip LAB Throttled

How the page drew during the measured load, at 9 points across 36.89 s. Compare this filmstrip against another site.

  1. 4.61 s
  2. 9.22 s
  3. 12.13 s
  4. 18.45 s
  5. 23.06 s
  6. 27.67 s
  7. 28.39 s
  8. 32.28 s
  9. 36.89 s

Lighthouse Scores LAB Simulated

31
Performance
no change
100
Accessibility
no change
54
Best Practices
no change
85
SEO
no change

Metrics LAB FIELD

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

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 40.26 s poor ↑ +635 ms (+1.6%) 22.40 s – 41.30 s 3.79 s needs work 53.1% 24.2% 22.7%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 421 ms needs work site-wide 57.4% 20.1% 22.5%
CLS CWV Cumulative Layout Shift 0.103 needs work → no change 0.048 – 0.150 0.150 needs work 52.1% 32.6% 15.3%
TBT Total Blocking Time 970 ms poor ↑ +29 ms (+3.1%) 878 ms – 3.88 s n/a —
FCP First Contentful Paint 20.92 s poor ↓ -97 ms (-0.5%) 12.27 s – 23.04 s 2.85 s needs work 54.3% 22.8% 22.8%
Speed Index 20.92 s poor ↓ -97 ms (-0.5%) 12.27 s – 23.04 s n/a —
TTFB Time to First Byte 622 ms good ↓ -11 ms (-1.7%) 613 ms – 1.02 s 954 ms needs work 63.5% 27.8% 8.7%

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.

resource load duration 16.20 s
resource load delay 11.25 s
time to first byte 878 ms
element render delay 67 ms

LCP LAB Simulated vs LCP FIELD

Lab 40.26 s
Field p75 3.79 s

The lab LCP is 10.63× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 7.57 MB ↑ +30.1 kB (+0.4%) 6.66 MB – 7.57 MB
Requests 161 ↑ +3 (+1.9%) 156 – 188
Third-party Weight 790 kB ↑ +28.1 kB (+3.8%) 566 kB – 835 kB
Third-party CPU 267 ms ↑ +47 ms (+21.1%) 219 ms – 655 ms
Unused JS 1.48 MB ↑ +3.3 kB (+0.2%) 1.38 MB – 1.48 MB
Unused CSS 523 kB → no change 175 kB – 523 kB

By resource type

Type Transfer Share Size Requests
script 51.6% 3.80 MB 84
image 27.2% 2.01 MB 29
font 12.5% 920 kB 4
stylesheet 8.1% 594 kB 21
document 0.5% 35.0 kB 2
other 0.1% 10.9 kB 20
Total 7.57 MB 161

Third parties 18 entities

Entity Transfer Size Main thread Simulated
Facebook script 196 kB 75 ms
Adobe Tag Manager script 182 kB 65 ms
TikTok script 164 kB 46 ms
s-microsoft.com font 63.9 kB 0 ms
mPulse script 58.2 kB 8 ms
All 18 790 kB 267 ms

Without JavaScript

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

Scripts disabled
As rendered

41.4% 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 5.82 s ↓ -126 ms (-2.1%) 5.38 s – 17.94 s
Long Tasks 20 → no change 18 – 20
DOM Elements 1,981 → no change 1,970 – 1,985
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 0 → no change 0 – 5
A11y Failures 0 → no change 0 – 1
A11y Failing Nodes 0 → no change 0 – 4

Main thread work

Task Time Share Duration Simulated
script evaluation 48% 2.80 s
other 21% 1.19 s
style layout 17% 984 ms
script parse compile 9% 521 ms
parse HTML 3% 158 ms
garbage collection 2% 95 ms
paint composite render 1% 66 ms
Total 5.82 s

Axe violations axe-core 4.13.0, full rule set

0 violating nodes across 0 rules, 1654 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Best Practices failures 5 of 20 audits

  • deprecations — Uses deprecated APIs 1 item
  • third-party-cookies — Uses third-party cookies 23 items
  • errors-in-console — Browser errors were logged to the console 5 items
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item
  • valid-source-maps — Missing source maps for large first-party JavaScript 5 items

SEO failures 2 of 10 audits

  • link-text — Links do not have descriptive text 12 items
  • crawlable-anchors — Links are not crawlable 3 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache http/1.1 5 console errors

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-10-03 3.80 s 421 ms 0.150 2.87 s 943 ms
2026-09-26 3.79 s 430 ms 0.150 2.87 s 908 ms
2026-09-19 3.53 s 422 ms 0.150 2.79 s 860 ms
2026-09-12 3.66 s 371 ms 0.110 2.85 s 835 ms
2026-09-05 3.17 s 343 ms 0.110 2.74 s 908 ms
2026-08-29 3.89 s 326 ms 0.110 2.74 s 955 ms
2026-08-22 3.80 s 306 ms 0.110 2.35 s 955 ms
2026-08-15 3.80 s 295 ms 0.110 2.62 s 955 ms
2026-08-08 3.37 s 290 ms 0.110 2.41 s 911 ms
2026-08-01 3.27 s 283 ms 0.110 2.27 s 876 ms
2026-07-25 3.10 s 289 ms 0.110 2.23 s 867 ms
2026-07-18 3.10 s 290 ms 0.110 2.32 s 811 ms

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 6, 2026, 11:00 PM UTC 31 40.26 s 0.103 970 ms 7.57 MB 3/3 ±4 3,324 +34% 133.8s Wayback
Oct 3, 2026, 8:44 PM UTC 31 39.62 s 0.103 941 ms 7.53 MB 3/3 ±9 3,061 +23% 137s Wayback
Oct 1, 2026, 6:53 AM UTC 22 38.22 s 0.150 1.81 s 7.56 MB 3/3 ±3 2,349 -6% 151.9s Wayback
Sep 29, 2026, 4:55 AM UTC 26 41.10 s 0.103 1.61 s 7.36 MB 3/3 ±7 2,423 -3% 128.7s Wayback
Sep 25, 2026, 5:55 AM UTC 27 38.05 s 0.103 1.38 s 7.34 MB 3/3 ±7 2,424 -3% 123.7s Wayback
Sep 23, 2026, 5:45 AM UTC 27 38.12 s 0.103 1.40 s 7.31 MB 3/3 ±3 2,443 -2% 135.3s Wayback
Sep 21, 2026, 1:11 AM UTC 30 36.35 s 0.103 1.01 s 7.13 MB 3/3 ±7 2,432 -2% 126.1s Wayback
Sep 18, 2026, 1:33 PM UTC 28 37.16 s 0.103 1.26 s 7.28 MB 3/3 ±3 2,470 -1% 161.2s Wayback
Sep 16, 2026, 3:56 AM UTC 28 37.58 s 0.103 1.28 s 7.30 MB 3/3 ±3 2,500 +1% 127.1s Wayback
Sep 14, 2026, 1:01 AM UTC 27 27.20 s 0.091 1.53 s 6.78 MB 3/3 ±2 2,339 -6% 126.9s Wayback
Sep 11, 2026, 11:09 PM UTC 25 41.30 s 0.103 1.78 s 7.30 MB 3/3 ±5 2,474 -1% 130.4s Wayback
Sep 9, 2026, 8:36 PM UTC 29 23.49 s 0.099 1.20 s 6.78 MB 3/3 ±4 3,447 +39% 63.3s Wayback
Sep 7, 2026, 7:13 PM UTC 28 23.68 s 0.048 1.74 s 6.78 MB 3/3 ±4 2,484 0% 70.4s Wayback
Sep 5, 2026, 3:17 AM UTC 29 37.01 s 0.103 1.12 s 7.26 MB 3/3 ±4 2,362 -5% 123.3s Wayback
Sep 4, 2026, 12:56 AM UTC 27 24.84 s 0.099 1.46 s 6.78 MB 3/3 ±5 2,969 +19% 62.6s Wayback
Sep 2, 2026, 11:06 PM UTC 25 30.65 s 0.098 1.80 s 6.81 MB 3/3 ±3 2,302 -7% 75.6s Wayback
Sep 1, 2026, 8:46 PM UTC 33 26.91 s 0.052 963 ms 6.72 MB 3/3 ±3 2,671 +7% 299.1s Wayback
Aug 31, 2026, 6:04 PM UTC 28 37.73 s 0.103 1.22 s 7.28 MB 3/3 ±1 2,346 -6% 75s Wayback
Aug 26, 2026, 10:45 PM UTC 28 38.80 s 0.103 1.23 s 7.34 MB 3/3 ±6 2,441 -2% 66s Wayback
Aug 25, 2026, 9:04 PM UTC 25 23.80 s 0.060 3.88 s 6.86 MB 3/3 ±5 2,307 -7% 69.2s Wayback
Aug 25, 2026, 7:31 PM UTC 28 38.10 s 0.103 1.29 s 7.33 MB 3/3 ±2 2,467 -1% 65.7s Wayback
Aug 24, 2026, 6:38 PM UTC 26 39.81 s 0.103 1.48 s 7.17 MB 3/3 ±3 2,338 -6% 67.7s Wayback
Aug 23, 2026, 6:30 PM UTC 26 22.40 s 0.103 1.58 s 6.66 MB 3/3 ±1 2,439 -2% 66.7s Wayback
Aug 22, 2026, 5:22 PM UTC 32 36.82 s 0.103 878 ms 6.94 MB 3/3 ±10 3,359 +35% 76s Wayback
Aug 21, 2026, 4:38 PM UTC 28 38.20 s 0.103 1.29 s 7.17 MB 3/3 ±3 2,673 +8% 62.3s Wayback
Aug 20, 2026, 4:30 PM UTC 26 39.67 s 0.103 1.60 s 7.18 MB 3/3 ±2 2,485 0% 68.3s Wayback