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 ·

sleepasloth.com

https://sleepasloth.com/

53 89 96 85 –CWV 54AXE

Data from Aug 21, 2026, 6:50 AM UTC — 12h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 12h

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.

Cloudflare Hosted by Cloudflare

Scores

53
Performance
no change
89
Accessibility
no change
96
Best Practices
no change
85
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 9.71 s — — 9.71 s 9.71 s
CLS Cumulative Layout Shift 0.009 — — 0.009 0.009
TBT Total Blocking Time 902 ms — — 902 ms 902 ms
FCP First Contentful Paint 1.80 s — — 1.80 s 1.80 s
Speed Index 2.89 s — — 2.89 s 2.89 s
TTFB Time to First Byte 615 ms — — 615 ms 615 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.

element render delay 826 ms
resource load delay 481 ms
resource load duration 50 ms
time to first byte 8 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 2.76 MB — — 2.76 MB 2.76 MB
Requests 262 — — 262 262
Third-party Weight 1.29 MB — — 1.29 MB 1.29 MB
Third-party CPU 412 ms — — 412 ms 412 ms
Unused JS 603.7 kB — — 603.7 kB 603.7 kB
Unused CSS 10.5 kB — — 10.5 kB 10.5 kB

By resource type

script 1.44 MB · 77 req
other 962.0 kB · 140 req
image 164.6 kB · 6 req
stylesheet 75.0 kB · 31 req
font 69.5 kB · 4 req
document 53.0 kB · 3 req
third party 1.25 MB · 57 req

Third parties 10 entities

1.29 MB transferred, 412 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 491.0 kB · 128 ms CPU
Facebook 178.0 kB · 88 ms CPU
pop-convert.com 153.3 kB · 72 ms CPU
mailerlite.com 138.8 kB · 50 ms CPU
nice-team.net 116.4 kB · 19 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 5.58 s — — 5.58 s 5.58 s
Long Tasks 20 — — 20 20
DOM Elements 1,862 — — 1,862 1,862
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 54 — — 54 54
A11y Failures 5 — — 5 5
A11y Failing Nodes 49 — — 49 49

Main thread work

script evaluation 2.52 s
other 1.36 s
style layout 774 ms
script parse compile 574 ms
parse HTML 183 ms
paint composite render 125 ms
garbage collection 51 ms

Axe violations axe-core 4.13.0, full rule set

54 violating nodes across 5 rules, 2591 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.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 44 nodes
  • serious link-name — Links must have discernible text 6 nodes
  • moderate region — All page content should be contained by landmarks 2 nodes
  • minor empty-heading — Headings should not be empty 1 node
  • moderate heading-order — Heading levels should only increase by one 1 node

Accessibility failures 5 of 34 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.

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 35 nodes
  • link-name — Links do not have a discernible name 6 nodes
  • target-size — Touch targets do not have sufficient size or spacing. 6 nodes
  • 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

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 21, 2026, 6:50 AM UTC 53 9.71 s 0.009 902 ms 2.76 MB 3/3 ±37 2,451 48.4s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show sleepasloth.com'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://sleepasloth.com/"></speedlify-score>