website information and technology stack
Web technologies detected on this domain 23 technologies
Web technologies detected across all irs.gov subdomains 75 technologies
Website rank 829
Website Location United States of America
Language English
Domain Forwarding 15 websites redirect to www.irs.gov
Last technology update Nov 3, 2021
Total irs.gov subdomain count 40 subdomains
Top ranking subdomain www.irs.gov (Rank: 829)
IP Address
Reverse IP Lookup 9 websites share IP address.
Autonomous System Number (ASN) AS12222 (AKAMAI)
Total linking domains 9,190 domains
Total linking IP 5,301 IPs
Certificate Issuer "Entrust
Certificate Expiration Date Nov 13, 2022 (Valid )

Technology Stack

List of 10 detected technologies used on the website (out of 23 total).

Technology Technology Type Version First detected
  Acquia Cloud Platform as a Service Aug 5, 2021
  AddToAny Widgets Aug 5, 2021
  Akamai Content Delivery Networks Aug 5, 2021
  Akamai Bot Manager Captchas Aug 5, 2021
  Akamai Hosted Web Hosting Aug 5, 2021
  Akamai mPulse Analytics Aug 5, 2021
  Amazon EC2 Web Servers Aug 5, 2021
  AWS Platform as a Service Aug 5, 2021
  Apache Web Servers Aug 5, 2021
  Boomerang Analytics Aug 5, 2021
See full technology stack

Change History

List of 6 detected changes in the website technology stack within the last 3 months (out of 2 total).

Technology Technology Type Version Change Date
Twitter Platform JavaScript Libraries  Dropped Nov 3, 2021
Drupal Content Management System 9  Version changed from 8 to 9 Sep 3, 2021

Uncommon response headers

List of uncommon response headers that were used by the website.

Header Value
Permissions-Policy interest-cohort=()
Server-Timing cdn-cache; desc=HIT
X-Age 447
X-Ah-Environment prod
X-Akamai-Transformed 9 - 0 pmb=mRUM,2
X-Cache-Hits 3
X-Drupal-Cache MISS
X-Drupal-Dynamic-Cache MISS
X-EdgeConnect-MidMile-RTT 0
X-EdgeConnect-Origin-MEX-Latency 141
X-Generator Drupal 9 (https://www.drupal.org)
X-Request-Id v-bce689ea-51f8-11ec-b17b-0bab380e02ef