Application Request Routing 2.x icon

Websites using Application Request Routing 2.x

Application Request Routing (ARR) is an extension to Internet Information Server (IIS), which enables an IIS server to function as a load balancer.

Lead List Exporter

161 live Application Request Routing 2.x sites, ready to export.

That's how many Application Request Routing 2.x websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.

Pick a ready-made template, or build your own filters in the Lead List Exporter and pay only for the rows you export.

Open the Lead List Exporter

Just need a few domains? Export up to 10 free from a subset of our crawl.

Start with a list template

Every Application Request Routing 2.x website we detected in Italy.

Only sites where a business, company-hosted email was found.

Sites with at least one business LinkedIn profile.

Start with the highest-traffic end of the dataset.

Limit results to Application Request Routing 2.x websites on .com domains.

Create your own
Versions

Which Application Request Routing 2.x versions are most used?

We could read a version number on 100% of Application Request Routing 2.x sites. Of those, the most common is Application Request Routing 2.5, on 161 sites.

100% on v2.5
Versions detected
1
Sites with a version
161

How many websites use Application Request Routing 2.x?

We found Application Request Routing 2.x on 161 websites in our September 2026 crawl, across 13 countries.

Which countries use Application Request Routing 2.x the most?

By number of websites, the top countries are Italy (72%, 116 sites), United States (10%, 16 sites), Canada (4%, 6 sites), Australia (3%, 5 sites) and China (3%, 5 sites). Together they account for 92% of the 161 Application Request Routing 2.x sites we track. 73% of the sites are in Italian, and .it is the most used domain ending, on 71% of them.

Where are Application Request Routing 2.x websites hosted?

The networks carrying the most Application Request Routing 2.x sites are Incapsula Inc (112 sites), Amazon.com, Inc. (15 sites) and Brantford Hydro (4 sites).

What technologies are used with Application Request Routing 2.x?

Across the 161 Application Request Routing 2.x sites we track, the technologies most often found alongside it are IIS (100%, 161 sites), jQuery (88%, 142 sites), HSTS (77%, 124 sites), jQuery UI (73%, 117 sites) and Imperva (70%, 112 sites).

Deep Dive

Breakdown of Application Request Routing 2.x websites

What else they run, plus their language, hosting network, domain extension and country.

FAQ

Answers drawn from our latest crawl of Application Request Routing 2.x websites. Anything else, email us and we will look it up.

Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.