rs-rss.com
Ranks Overall #334 Built Awesome #270
Data from Sep 21, 2026, 7:52 PM UTC old Measured once a week · 6 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
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CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
Wayback Machine
https://www.rs-rss.com/.
History from the previous URL is included below, with the move on Sep 7, 2026. A step-change around that point is likely the change of address rather than a regression.
Lab data is measured using Lighthouse, Mobile mode unless otherwise specified. Field data is reported from Chrome UX Report (using p75 measurements).
Stack
Lighthouse Scores LAB Simulated
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 | 1.63 s good | ↑ +17 ms (+1.1%) 1.55 s – 2.55 s | |
| INP CWV Interaction to Next Paint — field only, no lab run can measure it | n/a | — | |
| CLS CWV (estimate) Cumulative Layout Shift | 0 good | → no change 0 – 0 | |
| TBT Total Blocking Time | 0 ms good | → no change 0 ms – 0 ms | |
| FCP First Contentful Paint | 1.63 s good | ↑ +17 ms (+1.1%) 1.55 s – 2.55 s | |
| Speed Index | 1.63 s good | ↑ +17 ms (+1.1%) 1.55 s – 2.55 s | |
| TTFB Time to First Byte | 545 ms good | ↓ -146 ms (-21.1%) significant 491 ms – 691 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.
Page weight
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Page Weight | 316 kB | ↑ +17.9 kB (+6.2%) 252 kB – 329 kB | |
| Requests | 22 | ↓ -3 (-12%) 20 – 27 | |
| Third-party Weight | 10.2 kB | → no change 9.6 kB – 11.5 kB | |
| Third-party CPU | 5 ms | ↓ -1 ms (-10%) 3 ms – 5 ms | |
| Unused JS | 0 B | → no change 0 B – 0 B | |
| Unused CSS | 0 B | → no change 0 B – 0 B |
By resource type
| Type | Transfer | Share | Size | Requests |
|---|---|---|---|---|
| image | 85.9% | 266 kB | 13 | |
| other | 4.8% | 14.8 kB | 4 | |
| script | 3.7% | 11.4 kB | 2 | |
| document | 3.4% | 10.5 kB | 1 | |
| stylesheet | 2.3% | 7.0 kB | 1 | |
| Total | 316 kB | 22 |
Third parties 1 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Cloudflare | 10.2 kB | 5 ms | |
| Total | 10.2 kB | 5 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 323 ms | ↓ -32 ms (-9.1%) 299 ms – 357 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 656 | → no change 656 – 656 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 1 | |
| A11y Failures | 0 | → no change 0 – 0 | |
| A11y Failing Nodes | 0 | → no change 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 50% | 160 ms | |
| script evaluation | 18% | 58 ms | |
| style layout | 17% | 55 ms | |
| paint composite render | 9% | 29 ms | |
| parse HTML | 6% | 20 ms | |
| script parse compile | 0% | 1 ms | |
| Total | 323 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 1285 passing. This is a standalone Axe CLI run and is stricter than the subset Lighthouse already includes.
Best Practices failures 1 of 19 audits
-
image-aspect-ratio— Displays images with incorrect aspect ratio 2 items
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 21, 2026, 7:52 PM UTC | 99 | 1.63 s | 0 | 0 ms | 316 kB | 3/3 | ±3 | 2,498 +1% | 29.9s |
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| Sep 14, 2026, 5:46 PM UTC | 99 | 1.61 s | 0 | 0 ms | 297 kB | 3/3 | ±10 | 2,490 0% | 32.4s |
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| Sep 7, 2026, 2:54 PM UTC | 99 | 1.55 s | 0 | 0 ms | 252 kB | 3/3 | ±3 | 2,092 -16% | 29.9s |
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| Sep 7, 2026, 9:05 AM UTC old URL | 95 | 2.35 s | 0 | 0 ms | 266 kB | 3/3 | ±8 | 2,362 -5% | 28s |
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| Aug 31, 2026, 4:00 AM UTC old URL | 94 | 2.52 s | 0 | 0 ms | 303 kB | 3/3 | ±16 | 2,476 0% | 27.9s |
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| Aug 21, 2026, 2:35 PM UTC old URL | 93 | 2.55 s | 0 | 0 ms | 329 kB | 3/3 | ±3 | 2,313 -7% | 30.2s |
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Embed this score
Use this web component to show rs-rss.com'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://rs-rss.com/"></speedlify2-score>