speedlify2

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

Measurement runs · Embed a score · Field data from the Chrome UX Report ·

every-layout.dev

https://every-layout.dev/

77 92 77 82 CWV 20AXE

Data from Aug 20, 2026, 10:28 PM UTC — 20h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 20h

Stack

Detected on the same page load as the accessibility pass — the generator from <meta name="generator"> or the shape of the page, the host from response headers.

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Core Web Vitals field data, url-level

Real Chrome users, 28-day window (2026-07-19 → 2026-08-15). From the backfilled CrUX history rather than this measurement, which predates the API key. This is what Google measures you on.

LCP no data
INP no data
CLS no data

Scores

77
Performance
no change
92
Accessibility
no change
77
Best Practices
no change
82
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 1.22 s 1.22 s 1.22 s
CLS Cumulative Layout Shift 0.581 0.581 0.581
TBT Total Blocking Time 84 ms 84 ms 84 ms
FCP First Contentful Paint 976 ms 976 ms 976 ms
Speed Index 1.09 s 1.09 s 1.09 s
TTFB Time to First Byte 621 ms 621 ms 621 ms

What LCP is made of

A flat LCP number tells you something regressed. The subparts tell you whether it was the server, resource discovery, the download, or rendering.

resource load delay 62 ms
resource load duration 47 ms
time to first byte 21 ms
element render delay 16 ms

Field history 25 weeks

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

Week ending LCPINPCLSFCPTTFB
2026-08-15
2026-08-08
2026-08-01
2026-07-25
2026-07-18
2026-07-11
2026-07-04
2026-06-27
2026-06-20
2026-06-13
2026-06-06
2026-05-30

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 1.09 MB 1.09 MB 1.09 MB
Requests 56 56 56
Third-party Weight 243.7 kB 243.7 kB 243.7 kB
Third-party CPU 52 ms 52 ms 52 ms
Unused JS 164.7 kB 164.7 kB 164.7 kB
Unused CSS 0 B 0 B 0 B

By resource type

script 808.8 kB · 12 req
image 221.9 kB · 28 req
document 22.6 kB · 4 req
other 16.4 kB · 9 req
font 15.2 kB · 1 req
stylesheet 5.0 kB · 2 req
third party 809.3 kB · 15 req

Third parties 1 entities

243.7 kB transferred, 52 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Stripe 243.7 kB · 52 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 878 ms 878 ms 878 ms
Long Tasks 2 2 2
DOM Elements 335 335 335
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 20 20 20
A11y Failures 2 2 2
A11y Failing Nodes 3 3 3

Main thread work

other 367 ms
script evaluation 196 ms
style layout 145 ms
script parse compile 90 ms
paint composite render 64 ms
parse HTML 16 ms

Axe violations axe-core 4.13.0, full rule set

20 violating nodes across 4 rules, 784 passing. This is a standalone axe run, stricter than the subset Lighthouse folds into its score above — and it is the second tiebreaker in the ranking.

  • moderate region — All page content should be contained by landmarks 16 nodes
  • critical image-alt — Images must have alternative text 2 nodes
  • serious scrollable-region-focusable — Scrollable region must have keyboard access 1 node
  • moderate skip-link — The skip-link target should exist and be focusable 1 node

Accessibility failures 2 of 24 audits

Tracked as a count, not just the score — the weighted score is coarse enough that you can ship a broken component and barely move it.

  • image-alt — Image elements do not have `[alt]` attributes 2 nodes
  • skip-link — Skip links are not focusable. 1 node

Hygiene

Changes rarely — which is exactly why a change is worth noticing.

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first. Failures are kept as records — "this site was down on Tuesday" is data too.

When PerfLCPCLSTBTWeight RunsSpreadBenchTook
Aug 20, 2026, 10:28 PM UTC 77 1.22 s 0.581 84 ms 1.09 MB 3/3 ±51 3,287 42.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show every-layout.dev's scores, updated whenever this instance re-measures — more about the component. Don’t forget to bundle the speedlify-score.js component code into your site!

<speedlify-score speedlify-url="https://zachleat.github.io/speedlify2/" url="https://every-layout.dev/"></speedlify-score>