perf: cut LCP/page weight and lift Lighthouse scores - #18
Merged
Conversation
Sizes Sanity team-photo/logo fetches instead of pulling full-resolution originals, converts static PNGs to WebP, drops the unused image-slot.js drag-and-drop scaffold (dead weight in production), lazy-loads Blog/Financing/Ventures/BlogPost routes, and defers the Google Fonts stylesheet so it stops blocking first paint. Also adds <main> landmarks and fixes a few unlabeled form controls picked up along the way. Local Lighthouse (desktop): Performance 94->100, Accessibility 79->96, LCP 1.6s->0.5s, total page weight 1368KiB->276KiB. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
1 participant
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
image-slot.jsdrag-and-drop scaffold — dead weight in production, replaced with plain<img>(verified pixel-identical rendering)React.lazy<main>landmarks and fixed a few unlabeled form controlsResults (local Lighthouse, desktop preset)
LCP 1.6s -> 0.5s, total page weight 1,368 KiB -> 276 KiB.
Test plan
<image-slot>output pixel-for-pixel🤖 Generated with Claude Code