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 ·

rs-rss.com

https://www.rs-rss.com/

Data from Aug 21, 2026, 2:35 PM UTC — 3h old.

Built Awesome · 1 measurement · since Aug 21, 2026 · last attempt 3h

This URL redirects to https://rs-rss.com/.

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.

Cloudflare Hosted by Cloudflare

Scores

93
Performance
no change
100
Accessibility
no change
96
Best Practices
no change
100
SEO
no change

Lab metrics Lighthouse, mobile

Metric Current Previous Change Best Worst Trend
LCP Largest Contentful Paint 2.55 s — — 2.55 s 2.55 s
CLS Cumulative Layout Shift 0 — — 0 0
TBT Total Blocking Time 0 ms — — 0 ms 0 ms
FCP First Contentful Paint 2.55 s — — 2.55 s 2.55 s
Speed Index 2.55 s — — 2.55 s 2.55 s
TTFB Time to First Byte 510 ms — — 510 ms 510 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.

time to first byte 155 ms
element render delay 104 ms

Page weight

Metric Current Previous Change Best Worst Trend
Page Weight 329.2 kB — — 329.2 kB 329.2 kB
Requests 25 — — 25 25
Third-party Weight 11.5 kB — — 11.5 kB 11.5 kB
Third-party CPU 3 ms — — 3 ms 3 ms
Unused JS 0 B — — 0 B 0 B
Unused CSS 0 B — — 0 B 0 B

By resource type

image 277.9 kB · 15 req
other 15.1 kB · 5 req
script 12.7 kB · 2 req
document 11.0 kB · 1 req
stylesheet 7.0 kB · 1 req
third party 11.5 kB · 1 req

Third parties 1 entities

11.5 kB transferred, 3 ms of main thread time. This is the number most likely to regress without anyone on your team shipping anything.

Cloudflare 11.5 kB · 3 ms CPU

Page health

Metric Current Previous Change Best Worst Trend
Main Thread Work 357 ms — — 357 ms 357 ms
Long Tasks 0 — — 0 0
DOM Elements 656 — — 656 656
Axe Violations Violating nodes from a full axe run — stricter than Lighthouse's subset 1 — — 1 1
A11y Failures 0 — — 0 0
A11y Failing Nodes 0 — — 0 0

Main thread work

other 206 ms
style layout 56 ms
script evaluation 45 ms
paint composite render 30 ms
parse HTML 19 ms
script parse compile 1 ms

Axe violations axe-core 4.13.0, full rule set

1 violating node across 1 rule, 73 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 meta-refresh — Delayed refresh under 20 hours must not be used 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 21, 2026, 2:35 PM UTC 93 2.55 s 0 0 ms 329.2 kB 3/3 ±3 2,313 30.2s

Embed this score

Live below, then the markup that produces it. Drop that on any page to show rs-rss.com'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://www.rs-rss.com/"></speedlify-score>