Every hostname comes with its IAB category, the traffic role it plays, the company that owns it and its infrastructure provider. One file to license, join to your own data and use in your products.
A domain list tells you what a website is about. The hostnames under it tell you what each server does: one serves pages, another images, another sign-in, another ads. Logs, bid requests, network flows and DNS records all carry hostnames, not just domains.
This database gives each of those hostnames a category and a role, so you can analyze, enrich and filter data at the level it is actually recorded.
One row per hostname, with the root domain as a key that joins directly to our 120 million domain database.
The free sample has 1,000 hostnames with all 11 columns, in the same format as the full database. A few of them:
| SNI / hostname | Root domain | Category (IAB) | Role | Owner | Infrastructure provider |
|---|---|---|---|---|---|
| www.european.air.express.de | express.de | News | website | express.de | - |
| img.ma-shops.de | ma-shops.de | Hobbies & Interests > Antiquing and Antiques | cdn | ma-shops.de | - |
| api-ebanking.at.ing.be | ing.be | Business and Finance > Industries > Financial Industry | api | ing.be | - |
| mail.maillist.xdf.cn | xdf.cn | Education | xdf.cn | - | |
| analytics.native-instruments.com | native-instruments.com | Technology & Computing > Computing > Computer Software and Applications > Digital Audio | ads_tracking | native-instruments.com | - |
| contrataciones-qa-sso.telmex.com | telmex.com | Personal Finance > Home Utilities > Internet Service Providers | login | telmex.com | - |
| ns848.hostgator.com.br | hostgator.com.br | Technology & Computing > Computing > Internet | network | hostgator.com.br | - |
| monitor.laguida.it | laguida.it | News | telemetry | laguida.it | - |
| dl.apteka911.ua | apteka911.ua | Medical Health > Pharmaceutical Drugs | download_update | apteka911.ua | - |
| vpn.pami.org.ar | pami.org.ar | Business and Finance > Industries > Healthcare Industry | remote_access | pami.org.ar | - |
| push.ariva.de | ariva.de | Business and Finance > Industries > Financial Industry | push_chat | ariva.de | - |
| burk-io-blog.s3.wasabisys.com | wasabisys.com | Technology & Computing > Computing > Internet > Cloud Computing | cloud_hosting | unknown | Wasabi |
The role is what turns a list of hostnames into usable data: it separates what people visit from what runs in the background.
Teams that hold large volumes of hostnames and need to know what they are.
CSV or Parquet, one row per hostname. The full 2.7 billion rows, or slices by top-level domain, country, category or role, delivered by secure download link.
Weekly update files with new and changed hostnames, daily files on request, and a full snapshot every quarter. 300,000 newly registered domains are reviewed every day.
For hostnames that are not yet listed, the included engine gives a category from the root domain and assigns a role. It runs on your own servers and makes no calls to our systems.
The Server Name Indication is the hostname a device sends when it opens an encrypted connection. It is visible to networks even when the rest of the traffic is encrypted, which is why it appears in so many logs and data feeds.
The domain database categorizes 120 million websites. The hostname database lists the hostnames under those domains and adds a role, an owner and an infrastructure provider for each. Both share the root domain as a key, so they join directly.
Yes. You can license slices by top-level domain, country, category or role, instead of the full 2.7 billion rows.
Yes. Licenses are available for internal use and for use in products and services you sell to others.
By quote. The price depends on the number of hostnames, the slices you need, the update cadence and the license type.
Tell us which slices you need, how often you want updates and how you plan to use the data. We reply within one business day.