Features
Site Optimization
During migration Webrelay doesn't just copy the site — it makes it lighter and faster. Optimization is available on paid plans (package and subscription) and is enabled automatically — you can turn it off in the migration settings.
What gets optimized
Image conversion to WebP
WebP is 25–35% smaller than JPEG/PNG at the same quality. Webrelay:
- Converts
.jpg,.jpeg,.png,.bmp,.tiffto WebP - Replaces a file only if the WebP is smaller than the original
- Downsizes images wider than 1920px (larger isn't needed for the web)
- Skips
.svg,.ico,.gif,.webp,.avif— these don't need or can't be converted
CSS minification
Comments, extra whitespace and trailing semicolons are stripped from the CSS. Files with the .min.css extension are skipped — they're already minified.
Lazy loading of images
loading="lazy" and decoding="async" attributes are added to <img> tags — the browser loads images as you scroll. The first 3 images are skipped so the top of the page renders instantly.
What is NOT optimized (on purpose)
| What | Why |
|---|---|
| JavaScript | Minification breaks regular expressions and builder bundles — so we don't touch JS |
.min.js / .min.css | Already minified; re-compressing is pointless and risky |
| SVG, ICO, GIF | Conversion to WebP is inappropriate or impossible |
This is a deliberate decision: better to leave a file untouched than to break a working site for the sake of a few kilobytes.
Why it matters
- Load speed. Lighter images and lazy loading make pages open faster.
- SEO. Speed is a ranking factor in Yandex and Google. Core Web Vitals improve.
- Bandwidth savings — especially for mobile users.
SEO meta tags
Besides optimizing files, on paid plans Webrelay can generate SEO meta tags (title, description, Open Graph) based on the actual content of the pages rather than the domain name. The language is detected automatically from the page text.
FAQ
Can I turn optimization off?
Yes. WebP conversion and the other steps can be turned off in the migration settings before you start, if you need the original files.
Will image quality suffer?
No. WebP replaces the original only if it comes out smaller at comparable quality. If the WebP turns out heavier, the source file is kept.
Why isn't JavaScript minified?
Our minifier breaks regular expressions and builders' compiled bundles, which stops the scripts from working. That's why we deliberately leave JS as is.
Will old browsers display WebP?
WebP is supported by all current browsers. Files in special formats (SVG, GIF, ICO) are kept as is for maximum compatibility.