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.

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sleepasloth.com

https://sleepasloth.com/

40PERF 89A11Y 77BEST 85SEO ✗AXE –CWV

Ranks Overall #1,772 Built Awesome #1,111

Data from Oct 4, 2026, 7:20 PM UTC old Measured once a week · 7 runs since Aug 21, 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

Cloudflare Hosted by Cloudflare

Lighthouse Scores LAB Simulated

40
Performance
↓ -1 (-2.4%)
89
Accessibility
no change
77
Best Practices
↓ -19 (-19.8%)
85
SEO
no change

Metrics LAB

No field data: the Chrome UX Report is not being collected for this project, so every figure below is from the Lighthouse run.

Metric Lab Simulated
Value Change / range Trend
LCP CWV (estimate) Largest Contentful Paint 20.29 s poor ↓ -50 ms (-0.2%) 4.25 s – 20.34 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a —
CLS CWV (estimate) Cumulative Layout Shift 0 good → no change 0 – 0.009
TBT Total Blocking Time 673 ms poor ↑ +62 ms (+10.1%) 470 ms – 902 ms
FCP First Contentful Paint 7.70 s poor ↓ -1381 ms (-15.2%) 1.80 s – 9.21 s
Speed Index 8.39 s poor ↓ -692 ms (-7.6%) 2.39 s – 9.21 s
TTFB Time to First Byte 628 ms good ↑ +14 ms (+2.3%) 614 ms – 641 ms

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.

element render delay 2.06 s
resource load delay 511 ms
resource load duration 488 ms
time to first byte 145 ms

Page weight

Metric Value Change / range Trend
Page Weight 2.87 MB ↑ +6.0 kB (+0.2%) 2.56 MB – 2.87 MB
Requests 285 ↑ +1 (+0.4%) 224 – 293
Third-party Weight 1.36 MB ↑ +25.6 kB (+2%) 1.25 MB – 1.39 MB
Third-party CPU 427 ms ↓ -21 ms (-4.8%) 257 ms – 448 ms
Unused JS 570 kB ↑ +2.5 kB (+0.4%) 548 kB – 616 kB
Unused CSS 22.4 kB ↑ +428 B (+2%) 10.5 kB – 22.4 kB

By resource type

Type Transfer Share Size Requests
script 53% 1.52 MB 78
other 34.2% 981 kB 161
image 5.6% 162 kB 6
stylesheet 2.9% 82.1 kB 31
font 2.4% 69.5 kB 4
document 2% 56.1 kB 4
Total 2.87 MB 285

Third parties 12 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 490 kB 101 ms
Facebook script 210 kB 104 ms
pop-convert.com script 160 kB 69 ms
mailerlite.com font 139 kB 52 ms
nice-team.net script 117 kB 17 ms
All 12 1.36 MB 427 ms

Page health

Metric Value Change / range Trend
Main Thread Work 5.63 s ↓ -187 ms (-3.2%) 3.58 s – 5.98 s
Long Tasks 18 ↓ -2 (-10%) 9 – 20
DOM Elements 1,865 ↑ +1 (+0.1%) 1,862 – 1,865
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 45 → no change 45 – 54
A11y Failures 5 → no change 5 – 5
A11y Failing Nodes 49 → no change 49 – 49

Main thread work

Task Time Share Duration Simulated
script evaluation 49% 2.75 s
other 21% 1.19 s
style layout 14% 800 ms
script parse compile 10% 569 ms
parse HTML 3% 171 ms
paint composite render 1% 79 ms
garbage collection 1% 66 ms
Total 5.63 s

Axe violations axe-core 4.13.0, full rule set

45 violating nodes across 5 rules, 2491 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 35 nodes
    Offending elements (5 of 35)
    1. .announcement-bar__message > span
      <span>** FREE TRACKED UK 48h SHIPPING **</span>
    2. h4 > strong
      <strong>"I'm so glad we chose him. He's been a godsend in our household. So cute, so well crafted, and cuddly, our daughter is obsessed as are we! Thank you SleepaSloth" Fiona, Mum of 2</strong>
    3. .product__text
      <p class="product__text inline-richtext caption-with-letter-spacing">Shop Now</p>
    4. .product__title
      <h2 class="product__title h2">Premium Baby Sound Machine </h2>
    5. .price__regular > .price-item--regular.price-item
      <span class="price-item price-item--regular"> £74.00 GBP </span>
  • serious link-name — Links must have discernible text 6 nodes
    Offending elements (5 of 6)
    1. #Slide-template--24225308574028__multicolumn_jMjnw3-1 > .multicolumn-card.content-container[target="_blank"]
      <a href="https://issuu.com/familiesonline/docs/familiessoutheastlondonjanuaryfebruary2024print/10?fr=sNjFiYjY5MzA1MTM" class="multicolumn-card content-container" target="_blank">
    2. #Slide-template--24225308574028__multicolumn_jMjnw3-2 > .multicolumn-card.content-container[target="_blank"]
      <a href="https://www.familyeducation.com/your-baby-sleep/this-new-gadget-will-help-newborns-sleep-better-and-parents-too" class="multicolumn-card content-container" target="_blank">
    3. #Slide-template--24225308574028__multicolumn_jMjnw3-3 > .multicolumn-card.content-container[target="_blank"]
      <a href="https://www.claphammums.com/2022/sleepasloth-the-smart-baby-sleep-aid-made-in-clapham" class="multicolumn-card content-container" target="_blank">
    4. #Slide-template--24225308574028__multicolumn_jMjnw3-4 > .multicolumn-card.content-container[target="_blank"]
      <a href="https://smallbusinesssaturdayuk.com/small-biz-100" class="multicolumn-card content-container" target="_blank">
    5. #Slide-template--24225308574028__multicolumn_jMjnw3-5 > .multicolumn-card.content-container[target="_blank"]
      <a href="https://www.enterprisenation.com/learn-something/laurene-mosely-sleepasloth-startupuk/" class="multicolumn-card content-container" target="_blank">
  • moderate region — All page content should be contained by landmarks 2 nodes
    Offending elements
    1. .ml-form-embedContent > p
      <p><span style="color: rgb(0, 0, 0); font-size: 16px;"><strong>Sign up for occasional news,&nbsp;baby sleep tips&nbsp;and special offers!</strong></span></p>
    2. .ml-form-formContent
      <div class="ml-form-formContent">
  • minor empty-heading — Headings should not be empty 1 node
    Offending element
    1. .section-template--24225308574028__rich_text_kJLKqD-padding > .rich-text__wrapper.rich-text__wrapper--center.page-width > .rich-text__blocks.center > .h1.rich-text__heading.rte
      <h2 class="rich-text__heading rte inline-richtext h1 scroll-trigger animate--slide-in scroll-trigger--offscreen" data-cascade="" style="--animation-order: 1;"> </h2>
  • moderate heading-order — Heading levels should only increase by one 1 node
    Offending element
    1. .rich-text__text.rte[data-cascade=""] > h4
      <h4><strong>"I'm so glad we chose him. He's been a godsend in our household. So cute, so well crafted, and cuddly, our daughter is obsessed as are we! Thank you SleepaSloth" Fiona, Mum of 2</strong><…

Accessibility failures 5 of 34 audits

  • 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

Best Practices failures 2 of 19 audits

  • third-party-cookies — Uses third-party cookies 2 items
  • inspector-issues — Issues were logged in the `Issues` panel in Chrome Devtools 1 item

SEO failures 2 of 10 audits

  • meta-description — Document does not have a meta description
  • link-text — Links do not have descriptive text 1 item

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Oct 4, 2026, 7:20 PM UTC 40 20.29 s 0 673 ms 2.87 MB 3/3 ±3 2,474 -1% 56.9s Wayback
Sep 27, 2026, 5:39 PM UTC 41 20.34 s 0 611 ms 2.87 MB 3/3 ±12 2,490 0% 50.5s Wayback
Sep 20, 2026, 2:38 PM UTC 68 4.25 s 0.009 551 ms 2.84 MB 3/3 ±29 2,974 +20% 49.1s Wayback
Sep 13, 2026, 1:53 PM UTC 39 19.91 s 0 702 ms 2.87 MB 3/3 ±23 2,491 0% 53.6s Wayback
Sep 6, 2026, 10:28 AM UTC 43 18.19 s 0 518 ms 2.73 MB 3/3 ±13 2,604 +5% 47.5s Wayback
Aug 30, 2026, 8:02 AM UTC 61 11.99 s 0.009 470 ms 2.56 MB 3/3 ±4 3,571 +44% 40.5s Wayback
Aug 21, 2026, 6:50 AM UTC 53 9.71 s 0.009 902 ms 2.76 MB 3/3 ±37 2,451 -1% 48.4s Wayback

Embed this score

Use this web component to show sleepasloth.com's scores on any website, updated whenever this instance re-measures. Don’t forget to bundle the speedlify2-score.js component code into your site!

<speedlify2-score speedlify-url="https://www.speedlify.dev/" url="https://sleepasloth.com/"></speedlify2-score>