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

meta.com

https://www.meta.com/

29PERF 99A11Y 50BEST 92SEO !AXE ✗CWV

Ranks Overall #1,752 Big Tech #14

Data from Oct 10, 2026, 11:39 PM UTC old Measured every 2 days · 21 runs since Aug 28, 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 ReactReact

Filmstrip LAB Unthrottled

How the page drew during the measured load, at 8 points across 6.32 s. Compare this filmstrip against another site.

  1. 790 ms
  2. 1.58 s
  3. 2.37 s
  4. 3.16 s
  5. 3.95 s
  6. 4.74 s
  7. 5.53 s
  8. 6.32 s

Lighthouse Scores LAB Simulated

29
Performance
↑ +1 (+3.6%)
99
Accessibility
no change
50
Best Practices
no change
92
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 (2026-09-11 → 2026-10-08), url-level.

Metric Lab Simulated Field
Value Change / range Trend p75 Distribution
LCP CWV Largest Contentful Paint 7.91 s poor ↑ +319 ms (+4.2%) 5.65 s – 11.13 s 3.38 s needs work 59.8% 21.8% 18.4%
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a — 733 ms poor 41% 26.4% 32.6%
CLS CWV Cumulative Layout Shift 0.068 good → no change 0.068 – 0.084 0.110 needs work 72.4% 14.7% 13%
TBT Total Blocking Time 2.77 s poor ↓ -1285 ms (-31.7%) significant 2.35 s – 6.17 s n/a —
FCP First Contentful Paint 4.15 s poor ↓ -140 ms (-3.3%) 4.15 s – 4.68 s 2.95 s needs work 47.9% 27.5% 24.6%
Speed Index 10.17 s poor ↑ +737 ms (+7.8%) 8.01 s – 12.39 s n/a —
TTFB Time to First Byte 636 ms good ↑ +47 ms (+8%) 566 ms – 1.63 s 1.33 s needs work 49.3% 35.1% 15.7%

LCP Subparts LAB Unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab LCP shown above is a simulated throttled estimate.

resource load delay 369 ms
time to first byte 238 ms
element render delay 235 ms
resource load duration 92 ms

LCP LAB Simulated vs LCP FIELD

Lab 7.91 s
Field p75 3.38 s

The lab LCP is 2.34× the field p75 — real users likely have above-average hardware or network connectivity.

Page weight

Metric Value Change / range Trend
Page Weight 7.18 MB ↑ +593.9 kB (+9.2%) significant 3.31 MB – 7.18 MB
Requests 146 ↑ +3 (+2.1%) 101 – 153
Third-party Weight 6.51 MB ↑ +588.0 kB (+10.2%) significant 3.14 MB – 6.51 MB
Third-party CPU 1.79 s ↓ -221 ms (-11%) significant 1.38 s – 2.01 s
Unused JS 1.33 MB ↑ +228.9 kB (+21.4%) significant 948 kB – 1.33 MB
Unused CSS 368 kB ↑ +5.4 kB (+1.5%) 335 kB – 368 kB

By resource type

Type Transfer Share Size Requests
script 40.1% 2.88 MB 66
media 36.8% 2.65 MB 1
image 12.3% 885 kB 23
stylesheet 5.4% 391 kB 6
font 2.6% 183 kB 1
document 1.9% 138 kB 8
other 0.8% 60.4 kB 34
Total 7.18 MB 146

Third parties 2 entities

Entity Transfer Size Main thread Simulated
Facebook mediascript 6.51 MB 1.79 s
conversionsapigateway.com 72 B 0 ms
Total 6.51 MB 1.79 s

Without JavaScript

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

Scripts disabled
As rendered

6% of pixels differ — they are nearly 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 13.91 s ↓ -2186 ms (-13.6%) significant 10.20 s – 16.09 s
Long Tasks 20 → no change 20 – 20
DOM Elements 1,768 → no change 1,710 – 1,976
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 4 → no change 3 – 4
A11y Failures 2 → no change 2 – 2
A11y Failing Nodes 2 → no change 2 – 2

Main thread work

Task Time Share Duration Simulated
script evaluation 51% 7.10 s
other 34% 4.76 s
script parse compile 7% 931 ms
style layout 3% 483 ms
garbage collection 2% 338 ms
parse HTML 1% 161 ms
paint composite render 1% 140 ms
Total 13.91 s

Axe violations axe-core 4.13.0, full rule set

4 violating nodes across 4 rules, 37 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

Accessibility failures 2 of 33 audits

  • heading-order — Heading elements are not in a sequentially-descending order 1 node
  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 1 node

Best Practices failures 5 of 17 audits

  • deprecations — Uses deprecated APIs 1 item
  • third-party-cookies — Uses third-party cookies 5 items
  • charset — Charset declaration is missing or occurs too late in the HTML
  • errors-in-console — Browser errors were logged to the console 1 item
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 1 of 10 audits

  • link-text — Links do not have descriptive text 9 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3 1 console error

Measurement log

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-10-03 3.40 s 766 ms 0.100 2.99 s 1.35 s
2026-09-26 3.43 s 786 ms 0.100 2.98 s 1.36 s
2026-09-19 3.56 s 785 ms 0.100 3.11 s 1.46 s
2026-09-12 3.48 s 721 ms 0.100 3.08 s 1.46 s
2026-09-05 3.42 s 658 ms 0.100 3.08 s 1.45 s
2026-08-29 3.42 s 625 ms 0.100 3.11 s 1.47 s
2026-08-22 3.37 s 633 ms 0.100 3.05 s 1.38 s
2026-08-15 3.37 s 623 ms 0.120 3.05 s 1.34 s
2026-08-08 3.37 s 616 ms 0.140 3.03 s 1.30 s
2026-08-01 3.34 s 627 ms 0.150 3.00 s 1.24 s
2026-07-25 3.37 s 638 ms 0.150 3.00 s 1.22 s
2026-07-18 3.45 s 639 ms 0.150 3.04 s 1.22 s

Runs

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 10, 2026, 11:39 PM UTC 29 7.91 s 0.068 2.77 s 7.18 MB 2/3 ±1 1,769 -29% 155.6s Wayback
Oct 8, 2026, 5:53 PM UTC 28 7.59 s 0.068 4.06 s 6.58 MB 2/3 ±0 2,401 -3% 267.5s Wayback
Oct 6, 2026, 1:03 PM UTC 31 5.80 s 0.068 2.74 s 5.95 MB 1/3 — 2,470 -1% 261.4s Wayback
Oct 1, 2026, 8:32 PM UTC 32 5.65 s 0.068 2.71 s 4.67 MB 3/3 ±7 2,490 0% 203.9s Wayback
Sep 29, 2026, 6:10 PM UTC 33 5.67 s 0.068 2.35 s 4.94 MB 1/3 — 2,472 -1% 339.5s Wayback
Sep 26, 2026, 6:47 PM UTC 31 5.99 s 0.068 2.97 s 4.55 MB 3/3 ±7 2,493 0% 276.8s Wayback
Sep 24, 2026, 7:39 AM UTC 32 5.92 s 0.068 3.32 s 4.40 MB 3/3 ±7 2,498 0% 205.3s Wayback
Sep 22, 2026, 3:59 AM UTC 30 5.87 s 0.068 3.11 s 5.83 MB 2/3 ±0 3,178 +28% 133.5s Wayback
Sep 19, 2026, 4:31 PM UTC 27 9.78 s 0.068 4.56 s 5.82 MB 3/3 ±8 2,287 -8% 204.1s Wayback
Sep 17, 2026, 11:01 AM UTC 27 10.26 s 0.068 4.90 s 5.82 MB 3/3 ±3 2,319 -7% 200.9s Wayback
Sep 15, 2026, 5:53 AM UTC 27 9.32 s 0.068 6.17 s 5.81 MB 2/3 ±1 2,637 +6% 137.5s Wayback
Sep 14, 2026, 9:46 PM UTC lighthouse timed out after 120000ms 393s
Sep 12, 2026, 7:02 AM UTC 28 8.63 s 0.068 3.68 s 5.81 MB 3/3 ±1 2,435 -2% 202.1s Wayback
Sep 10, 2026, 5:42 AM UTC 29 9.88 s 0.068 2.44 s 5.79 MB 3/3 ±1 3,321 +34% 120.2s Wayback
Sep 8, 2026, 1:00 AM UTC 26 10.20 s 0.068 3.15 s 4.27 MB 3/3 ±9 2,486 0% 147.4s Wayback
Sep 6, 2026, 12:42 AM UTC 26 10.57 s 0.084 3.44 s 4.26 MB 3/3 ±2 2,444 -2% 142.6s Wayback
Sep 4, 2026, 10:48 AM UTC 27 11.13 s 0.068 4.38 s 4.86 MB 3/3 ±0 2,505 +1% 164.8s Wayback
Sep 3, 2026, 6:53 AM UTC 27 9.73 s 0.068 4.64 s 4.88 MB 3/3 ±2 2,464 -1% 187.3s Wayback
Sep 1, 2026, 11:29 PM UTC 30 6.41 s 0.068 3.25 s 4.87 MB 1/3 — 3,090 +24% 170.6s Wayback
Aug 31, 2026, 10:35 PM UTC 31 6.21 s 0.068 3.40 s 3.31 MB 3/3 ±2 2,479 0% 155s Wayback
Aug 28, 2026, 5:30 PM UTC 26 10.12 s 0.068 3.78 s 4.24 MB 3/3 ±8 2,499 0% 163.9s Wayback