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 ·

11ty.blades.ninja

https://11ty.blades.ninja/

Data from Aug 20, 2026, 4:10 PM UTC — 25h old.

Built Awesome · 1 measurement · since Aug 20, 2026 · last attempt 25h

This URL redirects to https://build.blades.ninja/.

Lighthouse follows the redirect, so the numbers below describe the destination page, not this one. Not yet confirmed as a move; it needs to lead to the same place on several consecutive runs first.

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.

Build Awesome Built with Build Awesome
Netlify Hosted by Netlify

Scores

78
Performance
no change
74
Accessibility
no change
100
Best Practices
no change
82
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 4.13 s — — 4.13 s 4.13 s
CLS Cumulative Layout Shift 0.001 — — 0.001 0.001
TBT Total Blocking Time 52 ms — — 52 ms 52 ms
FCP First Contentful Paint 3.67 s — — 3.67 s 3.67 s
Speed Index 3.67 s — — 3.67 s 3.67 s
TTFB Time to First Byte 632 ms — — 632 ms 632 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 90 ms
time to first byte 73 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 615.1 kB — — 615.1 kB 615.1 kB
Requests 26 — — 26 26
Third-party Weight 592.9 kB — — 592.9 kB 592.9 kB
Third-party CPU 62 ms — — 62 ms 62 ms
Unused JS 139.6 kB — — 139.6 kB 139.6 kB
Unused CSS 39.6 kB — — 39.6 kB 39.6 kB

By resource type

script 304.0 kB · 5 req
font 235.6 kB · 2 req
stylesheet 47.7 kB · 5 req
image 6.4 kB · 6 req
document 3.8 kB · 2 req
other 536 B · 5 req
third party 593.0 kB · 21 req

Third parties 6 entities

592.9 kB transferred, 62 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Google Tag Manager 293.3 kB · 58 ms CPU
JSDelivr CDN 288.5 kB · 2 ms CPU
zgo.at 4.4 kB · 2 ms CPU
shields.io 3.5 kB · 0 ms CPU
gstatic.com 2.9 kB · 0 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 662 ms — — 662 ms 662 ms
Long Tasks 3 — — 3 3
DOM Elements 271 — — 271 271
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 13 — — 13 13
A11y Failures 5 — — 5 5
A11y Failing Nodes 21 — — 21 21

Main thread work

script evaluation 247 ms
other 182 ms
style layout 129 ms
script parse compile 60 ms
parse HTML 23 ms
paint composite render 22 ms

Axe violations axe-core 4.13.0, full rule set

13 violating nodes across 5 rules, 429 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.

  • critical image-alt — Images must have alternative text 5 nodes
  • serious link-name — Links must have discernible text 4 nodes
  • serious color-contrast — Elements must meet minimum color contrast ratio thresholds 2 nodes
  • moderate landmark-unique — Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node
  • serious object-alt — <object> elements must have alternative text 1 node

Accessibility failures 5 of 25 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.

  • target-size — Touch targets do not have sufficient size or spacing. 9 nodes
  • image-alt — Image elements do not have `[alt]` attributes 5 nodes
  • link-name — Links do not have a discernible name 4 nodes
  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 2 nodes
  • object-alt — `<object>` elements do not have alternate text 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, 4:10 PM UTC 78 4.13 s 0.001 52 ms 615.1 kB 3/3 ±14 2,556 23.9s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show 11ty.blades.ninja'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://11ty.blades.ninja/"></speedlify-score>