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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tailwind.buildawesome.one

https://tailwind.buildawesome.one/

88PERF 79A11Y 96BEST 82SEO AXE CWV

Ranks Overall #1,442 Built Awesome #1,076

Data from Sep 16, 2026, 3:31 AM UTC old Measured once a week · 3 runs since Sep 1, 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

Netlify Hosted by Netlify

Lighthouse Scores LAB Simulated

88
Performance
↓ -8 (-8.3%)
79
Accessibility
no change
96
Best Practices
↓ -4 (-4%)
82
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 2.90 s needs work ↑ +1208 ms (+71.6%) significant 1.69 s – 2.90 s
INP CWV Interaction to Next Paint — field only, no lab run can measure it n/a
CLS CWV (estimate) Cumulative Layout Shift 0.110 needs work ↑ +0.014 (+14.6%) 0.096 – 0.201
TBT Total Blocking Time 211 ms needs work ↑ +86 ms (+68.8%) 125 ms – 220 ms
FCP First Contentful Paint 1.03 s good ↑ +193 ms (+23%) significant 838 ms – 1.03 s
Speed Index 1.90 s good ↑ +1062 ms (+126.7%) significant 838 ms – 1.90 s
TTFB Time to First Byte 774 ms good ↑ +148 ms (+23.6%) significant 626 ms – 774 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.

time to first byte 471 ms
element render delay 309 ms

Page weight

Metric Value Change / range Trend
Page Weight 329 kB ↑ +2.7 kB (+0.9%) 326 kB – 330 kB
Requests 21 ↑ +1 (+5%) 20 – 33
Third-party Weight 316 kB ↑ +1.3 kB (+0.4%) 315 kB – 319 kB
Third-party CPU 118 ms ↑ +35 ms (+42.6%) 82 ms – 121 ms
Unused JS 144 kB ↑ +461 B (+0.3%) 143 kB – 144 kB
Unused CSS 0 B → no change 0 B – 0 B

By resource type

Type Transfer Share Size Requests
script 93.3% 305 kB 3
image 3.1% 10.2 kB 9
stylesheet 2% 6.4 kB 1
document 1.4% 4.7 kB 3
other 0.2% 573 B 4
Total 329 kB 21

Third parties 5 entities

Entity Transfer Size Main thread Simulated
Google Tag Manager script 301 kB 113 ms
shields.io 9.1 kB 0 ms
zgo.at 4.4 kB 4 ms
gstatic.com 1.1 kB 0 ms
goatcounter.com 382 B 0 ms
Total 316 kB 118 ms

Page health

Metric Value Change / range Trend
Main Thread Work 1.11 s ↑ +336 ms (+43.2%) 776 ms – 1.12 s
Long Tasks 5 ↑ +2 (+66.7%) 3 – 5
DOM Elements 119 → no change 119 – 144
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 11 → no change 11 – 16
A11y Failures 4 → no change 4 – 4
A11y Failing Nodes 7 → no change 7 – 12

Main thread work

Task Time Share Duration Simulated
script evaluation 42% 464 ms
other 23% 250 ms
style layout 19% 216 ms
script parse compile 9% 105 ms
paint composite render 4% 50 ms
garbage collection 1% 14 ms
parse HTML 1% 14 ms
Total 1.11 s

Axe violations axe-core 4.13.0, full rule set

11 violating nodes across 7 rules, 254 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.

  • critical image-alt — Images must have alternative text 3 nodes
  • serious object-alt — <object> elements must have alternative text 2 nodes
  • serious scrollable-region-focusable — Scrollable region must have keyboard access 2 nodes
  • minor empty-table-header — Table header text should not be empty 1 node
  • moderate heading-order — Heading levels should only increase by one 1 node
  • serious link-name — Links must have discernible text 1 node
  • moderate region — All page content should be contained by landmarks 1 node

Accessibility failures 4 of 20 audits

  • image-alt — Image elements do not have `[alt]` attributes 3 nodes
  • object-alt — `<object>` elements do not have alternate text 2 nodes
  • heading-order — Heading elements are not in a sequentially-descending order 1 node
  • link-name — Links do not have a discernible name 1 node

Best Practices failures 1 of 19 audits

  • errors-in-console — Browser errors were logged to the console 1 item

SEO failures 2 of 8 audits

  • meta-description — Document does not have a meta description
  • image-alt — Image elements do not have `[alt]` attributes 3 items

Hygiene

HTTPS HSTS CSP Clickjacking protection Origin isolation Trusted Types bfcache h2 1 console error

Measurement log

Every stored run for this URL, newest first.

When Scores PerfLCPCLSTBTWeight RunsSpreadBenchTook Archive
Sep 16, 2026, 3:31 AM UTC 88 2.90 s 0.110 211 ms 329 kB 3/3 ±7 2,460 -1% 37s Wayback
Sep 8, 2026, 11:52 PM UTC 96 1.69 s 0.096 125 ms 326 kB 3/3 ±6 3,108 +25% 24.9s Wayback
Sep 1, 2026, 10:41 PM UTC 86 1.70 s 0.201 220 ms 330 kB 3/3 ±16 2,665 +7% 34s Wayback

Embed this score

Use this web component to show tailwind.buildawesome.one'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://tailwind.buildawesome.one/"></speedlify2-score>