Download websites that use DNN

About DNN

DNN comes from an older generation of content management systems, and the age shows in who still runs it. A platform that began in 2002 has outlived several waves of fashion, and the sites that stayed with it tend to be the ones that never treated a website as a fashion decision in the first place.

The technical lineage explains the audience. DNN Corp. maintains an open source platform written in C# for Microsoft's web stack, published under MIT, with a commercial edition alongside it. A site running this CMS platform is almost certainly served from a Windows environment with the associated database and identity infrastructure behind it. Few content systems say that much about the server room from the outside.

As of September 2026 the platform is detected on 27,816 sites, 18,106 of them in United States, with the domain mix concentrated in .com. The visible population skews institutional: corporate sites, associations, universities, government agencies, manufacturers and regional service providers. Public marketing sites are only part of the story, because this platform has always been used heavily for intranets and extranets that no crawler can reach.

For a seller the inference chain is short. A detected installation implies a commitment to Microsoft tooling, an internal or partner development team comfortable in that ecosystem, procurement that favours licensed infrastructure, and a site old enough to have accumulated content worth migrating. Migration vendors, consultancies, specialist hosts and competing platforms all buy the same inference from opposite directions.

Age also changes what the surrounding fields mean. A site of this vintage tends to carry analytics tags, form handlers and script libraries from several different eras at once, layered rather than replaced, and the layering is itself a signal about internal capacity. An estate that keeps adding without removing is usually looked after by a small team or an outside partner working to a fixed budget. Buyers hunting for accounts where a rebuild is overdue can read that pattern straight out of the technology fields instead of inferring it from the platform name alone.

The gaps are real and worth naming. We hold no version data for this platform, so the dataset cannot separate a maintained installation from one left on an old build, which is precisely the split a security researcher would want. Intranet deployments are invisible by definition. A reverse proxy, a custom skin or a static export in front of the platform can hide it as well, so the public count is a lower bound on the install base rather than a measurement of it.

What the download does answer is the population question. Checking one domain tells you which system that domain runs. A full extraction tells you how large the remaining estate is, where it is concentrated, what it sits beside in the stack, and whether it is shrinking between crawls. The answers decide whether a migration offer, a module business or a support practice still has a market underneath it.