Choose WebP or AVIF
Open OptiWave → Media. Modern image conversion is disabled by default. Select a format supported by your server, choose a quality, and compare a sample image before processing the library.
| Format | When to consider it |
|---|---|
| WebP | A practical starting point for smaller JPEG/PNG replacements. |
| AVIF | Can produce smaller files, but encoding may take longer and requires server support. |
File-size savings vary with the source image and quality. New uploads use the selected format; use Regenerate Thumbnails to process existing media. Available modern files can also be used for page images, responsive candidates, and supported social/SEO metadata.
Understand original image controls
Replace Original Images is off by default. When enabled, OptiWave updates attachment references to the modern image and retains original-file information for restoration.
Let a regeneration or restore batch finish, review any errors, and check several media items before starting another operation.
Load off-screen images later
Lazy Load Images and Lazy Load CSS Backgrounds are on by default. Check that the first visible hero image loads promptly. Use Exclude Images from Lazy Load or the background selector controls where needed.
Preload Critical Images (Cloud) is off by default. When enabled and validated cloud data is available, OptiWave uses the first-screen image information to add appropriate loading hints. Check desktop and mobile hero images rather than assuming the same file is always the largest visible image.
Reserve image space
Add Missing Image Dimensions is on by default. Width and height help the browser reserve space while images load. Check any SVG or AVIF images and make sure your theme's responsive styling still keeps them in proportion.
YouTube previews and avatars
YouTube Placeholders replaces supported video embeds with a thumbnail and play button. The iframe loads on click. Test playback and your consent flow.
Self-Host Gravatars caches avatar files locally to reduce visitor requests to Gravatar. The server may still contact external services while preparing files. Local hosting alone does not determine your site's privacy compliance. Both options are off by default.
Manage thumbnail sizes
Image Sizes Management lists registered sizes and lets you add a custom name, width, height, and crop choice. Disable a size only if your theme and plugins do not use it. Regenerate existing images after a change, then check galleries, product images, and responsive image selection.
See the media screen
