cursor.com
Data from Aug 31, 2026, 9:03 PM UTC old
Overall #1,503 AI #11 Developer Tooling #89 · 1 measurement · since Aug 31, 2026
Stack
Core Web Vitals field data, url-level
Real Chrome users, 28-day window (2026-08-02 → 2026-08-29).
Lighthouse Scores
Filmstrip Lighthouse, mobile
How the page drew during the measured load, at 8 points across 4.67 s.
-
583 ms
-
1.17 s
-
1.75 s
-
2.33 s
-
2.92 s
-
3.50 s
-
4.08 s
-
4.67 s
Without JavaScript
The same load, photographed twice at 412×823: once with scripts disabled, once as rendered.
4.6% of pixels differ — they are nearly identical. A shifted layout counts as difference, so a <noscript> banner alone can account for a large figure.
Lab metrics Lighthouse, mobile
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| LCP Largest Contentful Paint | 13.18 s | — | — | 13.18 s | 13.18 s | |
| CLS Cumulative Layout Shift | 0.006 | — | — | 0.006 | 0.006 | |
| TBT Total Blocking Time | 2.63 s | — | — | 2.63 s | 2.63 s | |
| FCP First Contentful Paint | 1.98 s | — | — | 1.98 s | 1.98 s | |
| Speed Index | 6.85 s | — | — | 6.85 s | 6.85 s | |
| TTFB Time to First Byte | 638 ms | — | — | 638 ms | 638 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.
Field data Chrome UX Report, url-level
Real Chrome users, 28-day trailing window (2026-08-02 → 2026-08-29).
| Metric | p75 | Rating | Distribution (good / needs work / poor) |
|---|---|---|---|
| LCP CWV | 2.74 s | needs-improvement | 71.7% good |
| INP CWV Interaction to Next Paint — field only, Lighthouse cannot measure this in a lab run | 438 ms | needs-improvement | 48.9% good |
| CLS CWV | 0 | good | 97.4% good |
| FCP | 2.33 s | needs-improvement | 61.5% good |
| TTFB | 688 ms | good | 79.1% good |
Lab LCP vs Field LCP
The lab LCP is 4.8× the field p75 — real users likely have above-average hardware or network connectivity.
Field history 25 weeks
Weekly p75 from the CrUX History API, backfilled in a single request.
| Week ending | LCP | INP | CLS | FCP | TTFB |
|---|---|---|---|---|---|
| 2026-08-29 | 2.74 s | 438 ms | 0 | 2.33 s | 688 ms |
| 2026-08-22 | 2.75 s | 441 ms | 0 | 2.33 s | 687 ms |
| 2026-08-15 | 2.76 s | 445 ms | 0 | 2.34 s | 691 ms |
| 2026-08-08 | 2.76 s | 451 ms | 0 | 2.35 s | 691 ms |
| 2026-08-01 | 2.74 s | 423 ms | 0.010 | 2.34 s | 695 ms |
| 2026-07-25 | 2.75 s | 403 ms | 0.010 | 2.35 s | 715 ms |
| 2026-07-18 | 2.78 s | 408 ms | 0.010 | 2.36 s | 728 ms |
| 2026-07-11 | 2.69 s | 379 ms | 0.010 | 2.29 s | 707 ms |
| 2026-07-04 | 2.70 s | 389 ms | 0.010 | 2.30 s | 705 ms |
| 2026-06-27 | 2.69 s | 398 ms | 0.010 | 2.29 s | 691 ms |
| 2026-06-20 | 2.70 s | 390 ms | 0.010 | 2.30 s | 679 ms |
| 2026-06-13 | 2.74 s | 389 ms | 0.010 | 2.32 s | 657 ms |
Page weight
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Page Weight | 5.97 MB | — | — | 5.97 MB | 5.97 MB | |
| Requests | 181 | — | — | 181 | 181 | |
| Third-party Weight | 474 kB | — | — | 474 kB | 474 kB | |
| Third-party CPU | 345 ms | — | — | 345 ms | 345 ms | |
| Unused JS | 1.58 MB | — | — | 1.58 MB | 1.58 MB | |
| Unused CSS | 16.5 kB | — | — | 16.5 kB | 16.5 kB |
By resource type
- script 53.9% 3.22 MB · 92 req
- image 24.9% 1.49 MB · 14 req
- font 13.2% 790 kB · 22 req
- other 4.4% 263 kB · 40 req
- document 1.3% 76.1 kB · 4 req
- stylesheet 1.2% 71.8 kB · 4 req
- media 1% 62.4 kB · 1 req
Third parties 11 entities
474 kB transferred, 345 ms on the main thread.
Page health
| Metric | Current | Previous | Change | Best | Worst | Trend |
|---|---|---|---|---|---|---|
| Main Thread Work | 17.08 s | — | — | 17.08 s | 17.08 s | |
| Long Tasks | 20 | — | — | 20 | 20 | |
| DOM Elements | 3,439 | — | — | 3,439 | 3,439 | |
| Axe Violations Violating nodes from a full Axe CLI run (more than Lighthouse reports) | 69 | — | — | 69 | 69 | |
| A11y Failures | 3 | — | — | 3 | 3 | |
| A11y Failing Nodes | 68 | — | — | 68 | 68 |
Main thread work
Axe violations axe-core 4.13.0, full rule set
69 violating nodes across 4 rules, 1527 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 62 nodes -
serious
aria-hidden-focus— ARIA hidden element must not be focusable or contain focusable elements 5 nodes -
moderate
landmark-unique— Landmarks should have a unique role or role/label/title (i.e. accessible name) combination 1 node -
serious
scrollable-region-focusable— Scrollable region must have keyboard access 1 node
Accessibility failures 3 of 32 audits
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color-contrast— Background and foreground colors do not have a sufficient contrast ratio. 62 nodes -
aria-hidden-focus— `[aria-hidden="true"]` elements contain focusable descendents 5 nodes -
label-content-name-mismatch— Elements with visible text labels do not have matching accessible names. 1 node
Hygiene
Measurement log
Every stored run for this URL, newest first.
| When | Perf | LCP | CLS | TBT | Weight | Runs | Spread | Bench | Took |
|---|---|---|---|---|---|---|---|---|---|
| Aug 31, 2026, 9:03 PM UTC | 38 | 13.18 s | 0.006 | 2.63 s | 5.97 MB | 3/3 | ±1 | 2,476 0% | 83.2s |