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 ·

fylgja.dev

https://fylgja.dev/

95 97 100 100 –CWV 1AXE

Data from Aug 20, 2026, 11:25 PM UTC — 19h old.

11ty Emeritus · 1 measurement · since Aug 20, 2026 · last attempt 19h

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.

Astro 7.1.6 Built with Astro 7.1.6
Self-hosted · Apache Hosted by Self-hosted

Scores

95
Performance
no change
97
Accessibility
no change
100
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 2.68 s — — 2.68 s 2.68 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 1.00 s — — 1.00 s 1.00 s
Speed Index 4.01 s — — 4.01 s 4.01 s
TTFB Time to First Byte 608 ms — — 608 ms 608 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 2.17 s
time to first byte 358 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 710.7 kB — — 710.7 kB 710.7 kB
Requests 11 — — 11 11
Third-party Weight 0 B — — 0 B 0 B
Third-party CPU 0 ms — — 0 ms 0 ms
Unused JS 0 B — — 0 B 0 B
Unused CSS 0 B — — 0 B 0 B

By resource type

image 669.8 kB · 3 req
document 17.9 kB · 1 req
stylesheet 13.6 kB · 2 req
other 6.7 kB · 4 req
script 2.8 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 348 ms — — 348 ms 348 ms
Long Tasks 0 — — 0 0
DOM Elements 423 — — 423 423
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 1 — — 1 1
A11y Failing Nodes 1 — — 1 1

Main thread work

other 165 ms
style layout 123 ms
parse HTML 26 ms
script evaluation 20 ms
paint composite render 12 ms
script parse compile 2 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 625 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 1 node

Accessibility failures 1 of 26 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. 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, 11:25 PM UTC 95 2.68 s 0 0 ms 710.7 kB 3/3 ±12 2,482 29.3s

Embed this score

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