Why Images Need Optimising Before They Go Live
Images are usually the heaviest things on a web page. A single unoptimised photo from a phone or camera can be several megabytes — enough to make a page crawl on a mobile connection.
Optimising images means making them as small as possible in file size while keeping them looking sharp. It is one of the simplest, highest-impact things we do for performance.
What Optimisation Involves
- Resizing to the dimensions actually shown on the page.
- Compressing to remove invisible data.
- Serving modern formats like WebP or AVIF where supported.
- Loading off-screen images only when needed (lazy loading).
Why It Pays Off
Faster pages keep visitors engaged, improve search ranking and reduce the bandwidth you pay for. Studies repeatedly show that even small delays cut conversions.
What You Can Do
When uploading images yourself, start from a reasonably sized file rather than the full-resolution original, and let the site's tooling handle the rest.
| Image | Typical raw size | After optimisation |
|---|---|---|
| Hero photo | 4–8 MB | 150–400 KB |
| Product thumbnail | 1–2 MB | 20–60 KB |
| Logo | 200 KB | 10–30 KB |
If you need a hand with any of this, your Progressive Robot delivery team is ready to help. Raise a ticket from the Support area of your client portal or speak to your account manager and we will guide you through the next steps.