speedlify2

Lighthouse lab metrics, Axe, and Chrome UX Report field data for a list of sites recorded and compared over time.

Charts Measurement runs Embed a score

rss-jamstack.netlify.app

https://rss-jamstack.netlify.app/

100 89 100 90 !AXE –CWV

Ranks Overall #867 Built Awesome #680

Data from Sep 6, 2026, 10:21 AM UTC old Measured once a week · 3 runs since Aug 21, 2026

Elsewhere: PageSpeed Insights · Calibre · Treo · CrUX Vis · Wayback Machine

Stack

Netlify Hosted by Netlify

Lighthouse Scores

100
Performance
no change
89
Accessibility
no change
100
Best Practices
no change
90
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 779 ms 805 ms ↓ -26 ms (-3.2%) 779 ms 805 ms
CLS Cumulative Layout Shift 0 0 → no change 0 0
TBT Total Blocking Time 0 ms 0 ms → no change 0 ms 0 ms
FCP First Contentful Paint 779 ms 805 ms ↓ -26 ms (-3.2%) 779 ms 805 ms
Speed Index 779 ms 805 ms ↓ -26 ms (-3.2%) 779 ms 805 ms
TTFB Time to First Byte 606 ms 632 ms ↓ -26 ms (-4.1%) 606 ms 632 ms

LCP Subparts lab observed, unthrottled

The subparts attribute LCP to your server, resource discovery, download, or rendering. Note that the Lab metrics LCP metric shown above is throttled.

element render delay 27 ms
time to first byte 8 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 2.1 kB 2.1 kB ↓ -1 B 2.1 kB 2.1 kB
Requests 1 1 → no change 1 1
Third-party Weight 0 B 0 B → no change 0 B 0 B
Third-party CPU 0 ms 0 ms → no change 0 ms 0 ms
Unused JS 0 B 0 B → no change 0 B 0 B
Unused CSS 0 B 0 B → no change 0 B 0 B

By resource type

  • document 100% 2.1 kB · 1 req

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 87 ms 92 ms ↓ -5 ms (-4.9%) 87 ms 92 ms
Long Tasks 0 0 → no change 0 0
DOM Elements 64 64 → no change 64 64
Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) 5 5 → no change 5 5
A11y Failures 2 2 → no change 2 2
A11y Failing Nodes 4 4 → no change 4 4

Main thread work

other 48 ms
style layout 22 ms
script evaluation 9 ms
paint composite render 5 ms
parse HTML 3 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

5 violating nodes across 3 rules, 175 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 3 nodes
  • moderate landmark-one-main — Document should have one main landmark 1 node
  • moderate region — All page content should be contained by landmarks 1 node

Accessibility failures 2 of 13 audits

  • color-contrast — Background and foreground colors do not have a sufficient contrast ratio. 3 nodes
  • landmark-one-main — Document does not have a main landmark. 1 node

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
Sep 6, 2026, 10:21 AM UTC 100 779 ms 0 0 ms 2.1 kB 3/3 ±0 2,329 -6% 19.5s Wayback
Aug 30, 2026, 7:56 AM UTC 100 805 ms 0 0 ms 2.1 kB 3/3 ±0 2,805 +13% 20.2s Wayback
Aug 21, 2026, 3:32 PM UTC 100 798 ms 0 0 ms 2.1 kB 3/3 ±0 2,363 -5% 23s Wayback

Embed this score

Use this web component to show rss-jamstack.netlify.app'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://rss-jamstack.netlify.app/"></speedlify2-score>