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

mistral.ai

https://mistral.ai/

60 94 92 100 ✗AXE !CWV

Data from Aug 31, 2026, 9:06 PM UTC old

Overall #1,401 AI #6 Developer Tooling #67 · 1 measurement · since Aug 31, 2026

Stack

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Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-08-02 → 2026-08-29).

LCP 3.98 s needs-improvement
INP 155 ms good
CLS 0.240 needs-improvement

Lighthouse Scores

60
Performance
no change
94
Accessibility
no change
92
Best Practices
no change
100
SEO
no change

Filmstrip Lighthouse, mobile

How the page drew during the measured load, at 8 points across 3.60 s.

  1. 450 ms
  2. 900 ms
  3. 1.35 s
  4. 1.80 s
  5. 2.25 s
  6. 2.70 s
  7. 3.15 s
  8. 3.60 s

Without JavaScript

This page is client rendered.

Nothing was painted until the scripts ran. This is a web performance and robustness issue!

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

Scripts disabled
As rendered

35.3% 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.

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 17.52 s — — 17.52 s 17.52 s
CLS Cumulative Layout Shift 0.007 — — 0.007 0.007
TBT Total Blocking Time 405 ms — — 405 ms 405 ms
FCP First Contentful Paint 1.72 s — — 1.72 s 1.72 s
Speed Index 5.15 s — — 5.15 s 5.15 s
TTFB Time to First Byte 487 ms — — 487 ms 487 ms

LCP Subparts lab observed, unthrottled

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

element render delay 2.48 s
time to first byte 71 ms

Field data Chrome UX Report, url-level

Real Chrome users, 28-day trailing window (2026-08-02 → 2026-08-29).

Metric p75 Rating Distribution (good / needs work / poor)
LCP CWV 3.98 s needs-improvement 44.8% good
INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run 155 ms good 82.3% good
CLS CWV 0.240 needs-improvement 67% good
FCP 987 ms good 90.3% good
TTFB 529 ms good 85.8% good

Lab LCP vs Field LCP

Lab 17.52 s
Field p75 3.98 s

The lab LCP is 4.41× the field p75 — real users likely have above-average hardware or network connectivity.

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-08-29 3.98 s 155 ms 0.240 987 ms 529 ms
2026-08-22 3.74 s 145 ms 0.160 950 ms 513 ms
2026-08-15 3.60 s 136 ms 0.050 919 ms 493 ms
2026-08-08 3.60 s 133 ms 0.020 932 ms 486 ms
2026-08-01 3.52 s 130 ms 0.010 913 ms 469 ms
2026-07-25 3.39 s 126 ms 0.010 884 ms 458 ms
2026-07-18 3.30 s 125 ms 0.010 875 ms 464 ms
2026-07-11 3.18 s 117 ms 0.010 826 ms 461 ms
2026-07-04 3.17 s 115 ms 0.010 817 ms 457 ms
2026-06-27 3.20 s 116 ms 0.010 824 ms 460 ms
2026-06-20 3.13 s 115 ms 0.010 889 ms 506 ms
2026-06-13 2.97 s 121 ms 0.010 1.11 s 655 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 3.29 MB — — 3.29 MB 3.29 MB
Requests 83 — — 83 83
Third-party Weight 595 kB — — 595 kB 595 kB
Third-party CPU 235 ms — — 235 ms 235 ms
Unused JS 447 kB — — 447 kB 447 kB
Unused CSS 0 B — — 0 B 0 B

By resource type

  • image 30.8% 1.01 MB · 49 req
  • script 26.4% 867 kB · 8 req
  • other 20.8% 684 kB · 4 req
  • font 18.4% 606 kB · 5 req
  • document 2.6% 85.2 kB · 1 req
  • stylesheet 1% 33.5 kB · 3 req

Third parties 2 entities

595 kB transferred, 235 ms on the main thread.

Google Tag Manager script 329 kB · 115 ms CPU
axept.io scriptfont 266 kB · 120 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 6.96 s — — 6.96 s 6.96 s
Long Tasks 12 — — 12 12
DOM Elements 3,616 — — 3,616 3,616
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 8 — — 8 8
A11y Failures 3 — — 3 3
A11y Failing Nodes 7 — — 7 7

Main thread work

script evaluation 3.16 s
other 2.26 s
style layout 713 ms
paint composite render 544 ms
script parse compile 169 ms
parse HTML 82 ms
garbage collection 35 ms

Axe violations axe-core 4.13.0, full rule set

8 violating nodes across 4 rules, 2765 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • critical button-name — Buttons must have discernible text 4 nodes
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 2 nodes
  • moderate landmark-contentinfo-is-top-level — Contentinfo landmark should not be contained in another landmark 1 node
  • moderate landmark-no-duplicate-contentinfo — Document should not have more than one contentinfo landmark 1 node

Accessibility failures 3 of 32 audits

  • button-name — Buttons do not have an accessible name 4 nodes
  • label-content-name-mismatch — Elements with visible text labels do not have matching accessible names. 2 nodes
  • heading-order — Heading elements are not in a sequentially-descending order 1 node

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h3

Measurement log

Every stored run for this URL, newest first.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 31, 2026, 9:06 PM UTC 60 17.52 s 0.007 405 ms 3.29 MB 3/3 ±3 2,492 +1% 60.5s