This index measures the visual weight of Turkish e-commerce sites, which formats they use, and how fast they load on mobile. The goal: to make the scale of the problem visible.
For the numbers to be trustworthy, the method is fully open and reproducible by anyone. The measurement script is public.
50 leading Turkish e-commerce sites across 6 sectors (49 measured; excluding 1 bot-blocked page that never loaded real content): fashion, cosmetics, electronics, home textiles, furniture, grocery. 2nd edition, July 2026.
Total page size, image weight (MB & %), format distribution (JPG/PNG vs. WebP/AVIF), mobile LCP.
Headless Chrome (Puppeteer) · mobile emulation · real network capture
The crawl script and raw data are open; no cherry-picking. Site identities are anonymized (sector codes). The image % is a lower bound (CSS background images are not counted).
Sectors ranked from lightest to heaviest. See where your own sector stands.
| # | Sector | Avg. page (MB) | Image % | Modern format | Mobile LCP |
|---|---|---|---|---|---|
| 1 | Grocery | 7.9 | 67% | 56% | 2.6 s |
| 2 | Cosmetics | 8.2 | 57% | 100% | 2.9 s |
| 3 | Electronics | 8.4 | 54% | 75% | 1.5 s |
| 4 | Home textiles | 17.3 | 46% | 88% | 2.7 s |
| 5 | Fashion | 20.1 | 56% | 89% | 2.1 s |
| 6 | Furniture | 23.0 | 65% | 100% | 3.4 s |
On the average page, 58% of the weight comes from images, about ~9.1 MB per page. Far more than CSS, JS, and fonts combined.
Most sites use WebP, yet the images are still too large and too many. The heaviest page is 86 MB and didn't finish loading in 40 seconds. The problem isn't the format, it's size and compression.
A 14 MB page is expensive for a user loading it on mobile data; an average 2.5 s LCP on a slow connection turns into waiting, and into lost conversions and SEO.
On most sites the problem isn't the format; it's that the images are larger and more numerous than they need to be. Converting images to properly sized, well-compressed WebP dramatically reduces the weight of most pages in a single step.
Sector ranking, raw data, and a step-by-step speed checklist for site owners, as a PDF.
UNALSOFT measures your business's site with the same method used in this index and speeds it up with WebP media, technical SEO, and Core Web Vitals.
