WPT
This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.
wpt / largest-contentful-paint
Spec: Largest Contentful Paint ↗
Runs: Chrome 155.0.8039.0 (wpt@3f6b09ae3, 2026-09-03) | Firefox 157.0a1 (wpt@3f6b09ae3, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 95.9%116/121 | 89.3%108/121 | 84.3%102/121 | 5.0%6/121 | 5.8%7/121 | 0.0%0/121 |
| animated | 57.1%4/7 | 42.9%3/7 | 42.9%3/7 | 0.0%0/7 | 0.0%0/7 | 0.0%0/7 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| background-image-set-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| broken-image-icon.html | PASS | PASS | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| contracted-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| cross-origin-image.sub.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| element-only-when-fully-active.html | PASS | PASS | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| expanded-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| first-letter-background.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| first-paint-equals-lcp-text.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| idlharness.html | 30/30 | 30/30 | 30/30 | 6/30 | 6/30 | NOT RUN |
| iframe-content-not-observed.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-TAO.sub.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-element-when-fully-active.html | PASS | PASS | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| image-full-viewport.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-inside-svg.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-not-fully-visible.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-removed-after-paint.html | PASS | PASS | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| image-removed-before-load.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| image-src-change.html | PASS | PASS | FAIL | FAIL | FAIL | NOT RUN |
| image-sw-same-origin.https.html | PASS | PASS | PASS | ERROR | ERROR | NOT RUN |
| image-upscaling-empty-url.html | 10/10 | 9/10 | 0/10 | 0/10 | 0/10 | NOT RUN |
| image-upscaling.html | 10/10 | 9/10 | 10/10 | 0/10 | 0/10 | NOT RUN |
| initially-invisible-images.html | PASS | FAIL | FAIL | FAIL | FAIL | NOT RUN |
| invisible-images-composited-1.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| invisible-images-composited-2.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| invisible-images.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| larger-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| larger-text.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| loadTime-after-appendChild.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| modified-text-not-reconsidered.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| multiple-image-same-src.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| multiple-redirects-TAO.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-after-untrusted-scroll.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-css-generated-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-css-generated-text.html | 3/3 | 3/3 | 3/3 | 0/3 | 0/3 | NOT RUN |
| observe-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-mathml.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-random-namespace.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-svg-background-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-svg-data-uri-background-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-svg-data-uri-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-svg-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| observe-text.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| performance-entry-sequence.html | PASS | FAIL | PASS | FAIL | FAIL | NOT RUN |
| placeholder-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| progressively-loaded-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| redirects-tao-star.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| repeated-image.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| resized-image-not-reconsidered.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| same-origin-redirects.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| supported-lcp-type.html | PASS | PASS | PASS | FAIL | PASS | NOT RUN |
| text-fragment-union.html | PASS | FAIL | PASS | FAIL | FAIL | NOT RUN |
| text-with-display-style.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| toJSON.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| transparent-text-with-shadow.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| transparent-text-with-text-stroke.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| transparent-text.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| update-on-style-change.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| video-data-uri.html | PASS | TIMEOUT | TIMEOUT | TIMEOUT | TIMEOUT | NOT RUN |
| video-play-after-poster.html | PASS | PASS | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| video-poster.html | PASS | PASS | PASS | FAIL | FAIL | NOT RUN |
| web-font-styled-text-resize-block.html | PASS | PASS | PASS | TIMEOUT | FAIL | NOT RUN |
| web-font-styled-text-resize-swap-after-interaction.html | PASS | FAIL | PASS | TIMEOUT | TIMEOUT | NOT RUN |
| web-font-styled-text-resize-swap-smaller.html | PASS | PASS | PASS | TIMEOUT | FAIL | NOT RUN |
| web-font-styled-text-resize-swap-subnode.html | FAIL | FAIL | FAIL | FAIL | FAIL | NOT RUN |
| web-font-styled-text-resize-swap.html | FAIL | FAIL | FAIL | FAIL | FAIL | NOT RUN |