Companies Using Alibaba Cloud Object Storage Service

Our crawler reads the response headers of every page it fetches, and Alibaba Cloud's storage service signs its replies. A domain counts on this page when its response carries x-oss-request-id, x-oss-object-type or x-oss-storage-class, which means the page came out of an OSS bucket. Our October 2026 crawl finds 3,058 such domains, 851 matched to a company. That number is the second draft. The first one was four times larger, and almost all of the difference was gambling.

What the header proves

It proves hosting, not storage. Alibaba's static website hosting guide says a bucket can serve HTML, CSS and JavaScript as a public website with no servers, but browsers download HTML from the default bucket address, so the owner has to bind a custom domain, and a bucket in mainland China needs an ICP filing for it. Every domain here points its own hostname at a bucket, directly or through a CDN. Companies that keep images or backups in OSS and serve their pages from elsewhere don't show up at all, so this is a floor on OSS use.

Sales signal: a domain on this list is a front-end team that ships static builds to a bucket, often for one help centre or campaign site. That's a narrow, technical buyer.

Three in four were casinos

Before cleaning, 12,616 live domains passed the header test. Our title filter took out 708. On 16 October 2026 I had every one of the remaining 11,908 homepages fetched, and 8,850 of them (74.32%) turned out to be gambling lobbies and spam fleets. 2,686 had casino, slot or lottery titles in Chinese, Vietnamese, Bengali, Thai and English; 1,952 ran lottery-app shells; 1,168 ran one lobby platform's template; 1,162 were titled with nothing but a numbered casino domain, such as v7777.com or 2340.Com. The rest were numbered domains in the same families, many of them unreachable or behind the fleet's own challenge page. A bucket is cheap and quick to point a fresh domain at, and the fleets use it that way.

"Counted raw, Alibaba Cloud OSS looked like 12,616 websites. Three quarters of them were gambling fleets rotating domains." - Mehmet Suleyman, CEO & Co-founder at TechnologyChecker.io

Sales signal: never prospect from a raw OSS list. Filter by company match first; 851 of the 3,058 domains match a real company.

Who is left

The companies are Chinese, small and young. China has 537 of the matched companies we could place, the United States 51, Singapore and Hong Kong 23 each. 77.96% of matched companies with a known size have 200 staff or fewer, and 62.36% were founded in the 2010s. Only 39 have more than 1,000 staff. The big names use OSS for one site each: DJI's FlySafe pages, Yonyou's help centre, Sungrow's support centre and Geely's newsroom. iQIYI, miHoYo and DFS serve a main domain this way.

Sales signal: at large companies, find the team behind the one subdomain. At small ones, the whole company is often a few developers who picked OSS because their users are in China.

Industries

Software Development is 10.9%, Technology, Information and Internet 9.83% and IT Services 8.88%, together 29.61%. Financial Services follows at 4.44%. Games stand out among the names: miHoYo, Lilith Games, Game Science and Seasun all host on OSS, and so do three carmakers, XPENG, Geely and Zeekr. Outside China, Indonesia's 14 matched companies include GoPay and Moka.

Sales signal: game studios and electric-vehicle makers are the recognisable clusters. Both run many campaign and support sites, which suits a bucket.

The edge in front

Most of these sites don't answer straight from the bucket. Of the 1,863 hosts that answered our fetch, 1,657 (88.94%) still sent OSS headers, and the front server was Tengine, Alibaba's web server, on 636, OSS itself on 441, Cloudflare on 421 and Alibaba's ESA edge on 77. The stack agrees: Cloudflare is on 36.69% of the 3,058 domains and Alibaba Cloud CDN on 10.33%. Analytics shows the split audience, with Google Analytics on 22.83% and Baidu Analytics on 11.64%.

Sales signal: a site behind Cloudflare with an OSS origin is often a cross-border setup, serving China and the rest of the world from one bucket. CDN and edge-security vendors will find that pairing worth a call.

The S3 "switch" is mostly 500px

Our raw switching data shows 125 domains that dropped Amazon S3 and now serve from OSS, 85 in the last 30 days, against 5 going the other way. I checked who they are before publishing anything. 35 are gambling domains removed from this page. Of the other 90, 76 are 500px Portfolio sites, photographers' websites on custom domains, which 500px includes with a Pro membership. They dropped S3 in September and October 2026, and 500px.com itself serves from OSS. That's one platform changing hosts, so the 125 stays out of this page's migration table; only the 5 domains that left OSS for S3 are in it. At least 87 of the 3,058 domains on this page are 500px sites, and only a handful of the 125 look like independent moves.

"The biggest switching flow in our raw data was one photo platform moving its portfolios. Count the platform before you count the switch." - Mehmet Suleyman, CEO & Co-founder at TechnologyChecker.io

Sales signal: there is no wave of companies leaving Amazon S3 for Alibaba. For S3 or OSS sellers, the opportunity is the cross-border team that picks a provider per region.

Key takeaways

1. 3,058 domains serve pages straight from OSS in October 2026, after removing 8,850 gambling and spam domains (74.32% of the filtered set).
2. The header proves static hosting from a bucket; storage-only customers are invisible, so the count is a floor.
3. The core user is a Chinese software or internet company with fewer than 200 staff, founded in the 2010s.
4. Big brands use OSS for one site: DJI, Yonyou, Sungrow and Geely host support pages or newsrooms there.
5. Our raw data shows 125 domains moving from S3 to OSS, but 35 are removed fleet domains and 76 are 500px Portfolio sites, so the migration table leaves that row out.

Sales applications

Outreach template: "Your [help centre / campaign site] is served straight from an Alibaba Cloud OSS bucket behind [Cloudflare / Alibaba CDN]. We help teams that publish to China and the rest of the world from one origin with [problem]. Worth a quick call?"

Targeting: start from the 851 company-matched domains, filter to software, internet, games and automotive, and work subdomain by subdomain at the large accounts.

Competitive angle: for storage and CDN vendors outside China, the sites behind Cloudflare with an OSS origin (Cloudflare runs on 36.69% of the set) already run two providers in one stack, so adding a third is an easier conversation than replacing one.

The full list of 3,058 domains and 851 matched companies, with size, country, industry and stack, is on TechnologyChecker.io, refreshed with every monthly crawl.