manifesteren.nl
Ranks Overall #352 Built Awesome #274
Data from Oct 4, 2026, 10:56 AM UTC old Measured once a week · 7 runs since Aug 21, 2026
Elsewhere:
PageSpeed Insights ·
Calibre ·
Treo ·
CrUX Vis ·
Tame the Bots ·
Scoring Calculator ·
Wayback Machine
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 | 1.74 s good | ↑ +46 ms (+2.7%) 1.68 s – 1.94 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 | 1.74 s good | ↑ +46 ms (+2.7%) 1.68 s – 1.77 s | |
| Speed Index | 1.74 s good | ↑ +46 ms (+2.7%) 1.68 s – 2.59 s | |
| TTFB Time to First Byte | 718 ms good | ↑ +6 ms (+0.8%) 700 ms – 762 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 | 275 kB | ↓ -289 B (-0.1%) 275 kB – 276 kB | |
| Requests | 16 | → no change 16 – 16 | |
| Third-party Weight | 3.8 kB | ↑ +3 B (+0.1%) 3.8 kB – 3.8 kB | |
| Third-party CPU | 1 ms | ↓ -0 ms (-28.6%) 1 ms – 1 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 | 85.4% | 233 kB | 8 | |
| script | 9.6% | 26.3 kB | 2 | |
| document | 2.1% | 5.8 kB | 1 | |
| stylesheet | 2% | 5.6 kB | 1 | |
| other | 0.8% | 2.1 kB | 3 | |
| Total | 275 kB | 16 |
Third parties 1 entities
| Entity | Transfer | Size | Main thread Simulated |
|---|---|---|---|
| Plausible | 3.8 kB | 1 ms | |
| Total | 3.8 kB | 1 ms |
Page health
| Metric | Value | Change / range | Trend |
|---|---|---|---|
| Main Thread Work | 182 ms | ↓ -63 ms (-25.6%) 182 ms – 261 ms | |
| Long Tasks | 0 | → no change 0 – 0 | |
| DOM Elements | 140 | → no change 140 – 140 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 0 | → no change 0 – 0 | |
| A11y Failures | 0 | → no change 0 – 0 | |
| A11y Failing Nodes | 0 | → no change 0 – 0 |
Main thread work
| Task | Time | Share | Duration Simulated |
|---|---|---|---|
| other | 56% | 101 ms | |
| style layout | 14% | 25 ms | |
| script evaluation | 13% | 24 ms | |
| paint composite render | 9% | 16 ms | |
| parse HTML | 4% | 8 ms | |
| script parse compile | 4% | 8 ms | |
| Total | 182 ms |
Axe violations axe-core 4.13.0, full rule set
0 violating nodes across 0 rules, 217 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-size-responsive— Serves images with low resolution 1 item
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Scores | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took | Archive |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oct 4, 2026, 10:56 AM UTC | 99 | 1.74 s | 0 | 0 ms | 275 kB | 3/3 | ±0 | 3,306 +33% | 24.5s |
|
|
| Sep 27, 2026, 6:16 AM UTC | 99 | 1.69 s | 0 | 0 ms | 276 kB | 3/3 | ±1 | 2,482 0% | 27.2s |
|
|
| Sep 20, 2026, 12:41 AM UTC | 99 | 1.68 s | 0 | 0 ms | 275 kB | 3/3 | ±1 | 2,493 0% | 25.7s |
|
|
| Sep 12, 2026, 11:46 PM UTC | 99 | 1.75 s | 0 | 0 ms | 275 kB | 3/3 | ±2 | 2,897 +17% | 26.8s |
|
|
| Sep 5, 2026, 8:05 PM UTC | 98 | 1.93 s | 0 | 0 ms | 275 kB | 3/3 | ±1 | 2,488 0% | 28.5s |
|
|
| Aug 29, 2026, 7:43 PM UTC | 99 | 1.85 s | 0 | 0 ms | 275 kB | 3/3 | ±0 | 3,036 +22% | 25.8s |
|
|
| Aug 21, 2026, 3:12 AM UTC | 98 | 1.94 s | 0 | 0 ms | 275 kB | 3/3 | ±2 | 2,483 0% | 28.5s |
|
Embed this score
Use this web component to show manifesteren.nl'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://manifesteren.nl/"></speedlify2-score>