Customer story · Domain Science

300,000+ domains on HTTPS. Certificates renew themselves. Bots stop at the edge.

The team behind ExpiredDomains.com moved its domain redirects from its own servers to RedirHub. Certificates renew themselves, bots are stopped at the edge, and the work that needed daily attention is gone.

10 requests to one domain

Arriving

BotBotPersonBotBotBotBotBotBotBot

Redirected

Person

1 in 10 requests is redirected

Scanners and crawlers are dropped at the edge. People get a 301 to the right page.

Filtered
Domain Scienceexpireddomains.com ↗Runs · ExpiredDomains.comPlan · EnterpriseCustomer since · May 20252 min read
domains live on HTTPS, every certificate renewed automatically
300,000+
new domains added a month
~30,000
requests a month that pass the bot filter
6B+
of incoming requests stopped as bots
~90%

From Domain Science's workspace, rounded. Domains as of October 2026; requests as of September 2026. The bot share compares monthly requests before and after filtering was switched on.

A catalogue that keeps growing

Domain Science runs ExpiredDomains.com, the research workspace for expired, auction and aftermarket domains. Many of the domains it holds still get visits from old links and search results, and each one needs to send those visitors somewhere useful, over HTTPS.

What running it in-house really cost

For years the team ran those redirects on its own servers. Handling that volume took powerful, expensive hardware, but the hardware was not the hard part. The real burden was certificates: issuing and renewing them at this scale. Without a robust system errors slip through, and a domain that is down for days before anyone notices was by far the most costly problem.

On top of that, the setup needed constant human attention. Sudden traffic spikes and domains drawing extreme bot traffic all had to be handled by hand.

Redirecting domain names with SSL is a huge pain, and I have to do it frequently, often at mass. Now it is a few clicks. It just works.
Zsolt BikadiZsolt BikadiCSO, Domain Science

Certificates that renew themselves

With RedirHub, a domain gets its certificate as soon as its DNS points to us, and every certificate is renewed automatically before it expires. More than 300,000 domains are live on HTTPS today, and around 30,000 new ones join each month without anyone issuing or renewing a certificate by hand.

Most of the traffic was never people

Expired domains attract scanners, crawlers and scripts probing for old admin pages. Before filtering, the domains received roughly ten times the requests they get today. RedirHub now reads the request stream as it arrives and stops a source once it behaves like a bot. Three kinds of behaviour give it away:

Path scanningBlockedDozens of different URLs within secondsStopped at the edge
Request rateBlockedMore requests than a person makesStopped at the edge
Exploit probesBlockedLogin pages and known vulnerable filesStopped at the edge

What it looks like now

This part of Domain Science's operation is now close to effortless. Every month more than 6 billion requests pass the filter and are redirected to where they should go.

For domain portfolios

Running thousands of domains? Start here.

See domain parking without ads →
  1. Point DNS, not each domain

    Connect domains in bulk; certificates are issued as soon as DNS resolves to us.

  2. Send every domain somewhere useful

    A landing page, a for-sale page or the brand it belongs to, with a 301 over HTTPS.

  3. Leave the bots at the edge

    Filtering keeps scanners out of your destinations and your numbers.

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FormlabsG2 review · ★★★★★
“The redirect tool is particularly useful, especially for mass URL redirection and capturing old traffic from an unused subdomain to our main site.”
Mithru Vigneshwara, Formlabs