Snippet Library
Snippets that make WordPress lighter and faster: remove emoji scripts and embeds, control the Heartbeat API, limit revisions and load scripts only where they are needed. For developers and site owners chasing better Core Web Vitals.
Adds width and height attributes to images in your posts that lack them (for example images pasted from other sites or old posts), using the real image file size, which prevents layout jumps while pages load.
Adds Tools > Clean Up Drafts and Trash with counts of leftover auto-drafts, trashed posts and trashed or spam comments, and a button to remove them all permanently after confirmation.
Adds Tools > Autoloaded Options showing the total size of options WordPress loads on every page and the 40 largest ones, with a button to stop autoloading any option that does not need it.
Sends Cache-Control headers on public pages for logged-out visitors, so a CDN or proxy can cache them for a few minutes.
Sends cache headers on RSS feeds and XML sitemaps so feed readers, crawlers and CDNs can reuse them for an hour instead of making WordPress rebuild them on every request.
Stores the responses of public GET requests to the REST API (such as post lists used by headless front ends and block widgets) for a few minutes for logged-out visitors, and clears the cache when content changes.
Stores the comment totals that WordPress shows in the admin menu, toolbar and dashboard for 10 minutes, avoiding a slow counting query on every admin page view on sites with many comments.
Adds a [cached] shortcode you wrap around any slow shortcode or content, such as [cached ttl="3600"][some_feed][/cached]; its output is stored for the time you choose and served from cache after that.
Caches the per-role user counts shown on the Users screen and dashboard for 12 hours, avoiding a heavy query on sites with many users.
Keeps embedded content like videos and social posts cached for 30 days instead of re-fetching it from the provider every day.
Replaces the version number on your theme's and plugins' CSS and JavaScript URLs with the file's last-modified time, so browsers and CDNs cache files for a long time but always fetch a fresh copy right after you change one.
Stops browsers on large screens from downloading huge image versions by leaving very wide sizes out of the responsive srcset list.
Autosaves drafts every two minutes instead of every minute, in both the block editor and the classic editor.
Removes rarely used tags from the page head: RSD, Windows Live Writer manifest, shortlink, adjacent post links and the REST API discovery link.
Run on demand to delete every cached embed (videos, tweets and other oEmbed results) from the database, so they are fetched fresh and stale or broken embeds disappear.
Replaces embedded Google Maps in your content with a placeholder that loads the map only when clicked, for faster pages and fewer third-party cookies.
Shows a lightweight thumbnail instead of the full YouTube player until the visitor clicks play, saving around a megabyte of scripts per video.
Measures Largest Contentful Paint, Cumulative Layout Shift and Interaction to Next Paint in visitors' browsers and shows the 75th percentile of the last 7 days per page type in a dashboard widget.
Run on demand to convert your site's remaining MyISAM tables to InnoDB, the modern MySQL engine that handles many visitors at once far better and survives crashes more safely.
Adds Tools > Database Tables listing every table of your site with its row count, data and index size and reclaimable space, sorted by size, with an Optimize button for tables that need it.
Adds the defer attribute to the front-end scripts you list by handle, so they no longer block page rendering.
Holds back the scripts you list (chat widgets, heatmaps, social widgets) until the visitor first scrolls, taps, clicks or presses a key, or after a timeout, so they no longer slow down the initial page load.
Run on demand to permanently delete every pingback and trackback stored as a comment, which on older blogs are often thousands of spammy rows nobody reads.
Adds Tools > Unused Image Sizes, which finds resized copies of your images made for sizes your current theme and plugins no longer register, shows how much space they take, and deletes them in batches after confirmation.