What IP addresses and user agents are used by Siteimprove?

Modified on: Mon, 11 Jul, 2022 at 4:42 PM

Note: This article provides details for the IP addresses and user-agent strings used by Siteimprove on your website. You should verify that your IT network administration team allows the IPs and user-agent strings for the services you use. This will ensure the services are not blocked. You can download a text file containing all the IP addresses for use when configuring your allow list.

This article has been updated with new IPs on April 1st 2022. The new IPs are listed along with the "New" label and should be added to your allow list by your network administrator. 

Please reach out to customer support if you have any questions about the information in this article. 

Content suite crawler IP addresses and user-agents

Note: This list includes IP addresses and user agents used for the Siteimprove content suite (i.e. Quality Assurance, Accessibility, Policy, and SEO). Crawls run on ports are 80 for HTTP and 443 for HTTPS.

Content suite IP addresses

The following IP addresses are used to crawl and check your website:

93.160.60.22* (Global - commonly used so always add to allow list)

185.229.144.22* (Global - commonly used so always add to allow list)

80.62.246.50 (Global)

52.48.230.149 (Global)

52.57.25.76 (Global)

3.10.81.130 (Global)

35.157.236.87 (Global)

35.157.42.7 (Global)

52.55.30.145 (Global)

52.20.183.91 (Global)

52.60.34.56 (Global)

185.229.144.10 (Global)

13.58.165.213 (Global) - New

18.116.191.222 (Global) - New

18.116.197.208 (Global) - New

18.189.206.159 (Global) - New

18.190.68.80 (Global) - New

18.216.137.252 (Global) - New

18.223.191.8 (Global) - New

3.13.121.241 (Global) - New

3.133.38.181 (Global) - New

3.135.49.180 (Global) - New

3.136.111.218 (Global) - New

3.138.54.100 (Global) - New

18.219.35.44 (Global) - New

18.157.140.51 (Global) - New

18.159.218.224 (Global) - New

18.196.205.2 (Global) - New

18.198.120.55 (Global) - New

3.124.26.114 (Global) - New

3.125.99.135 (Global) - New

3.64.159.177 (Global) - New

3.66.247.32 (Global) - New

3.68.122.244 (Global) - New

52.57.167.198 (Global) - New

35.158.180.204 (Global) - New

18.192.147.131 (Global) - New

52.58.146.230 (Global) - New

185.229.145.22 (Global) - New

52.7.141.1 (USA)

52.4.143.42 (USA)

52.64.209.168 (Australia)

52.47.166.84 (France)

35.204.24.17 (Netherlands)

52.199.41.160 (Japan)

35.156.240.123 (Germany)

*These IP addresses are Siteimprove's most commonly used outgoing crawler IP addresses.

Content suite user agents

User agents can contain full user agent strings and user agent tokens.

Full user agent stringsUser agent tokens
A full user agent string is a full description of the crawler and appears in the request and your website logs. (Note: version changes may occur)A user agent token is used in the "user agent:" line in robots.txt to match a crawler type when writing crawl rules for your site.
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) SiteCheck-sitecrawl by Siteimprove.comSiteimproveBot-Crawler
Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) LinkCheck by Siteimprove.com

Not applicable


 


 


 


Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Image size by Siteimprove.com
CSS Validator: Jigsaw/2.3.0 W3C_CSS_Validator_JFouffa/2.0

Siteimprove Analytics IP addresses

This IP address is used by the Behavior Map Service in Siteimprove Analytics. In many cases, you will not see this in your website logs as it is often behind one of the crawler IP proxies listed above. 

35.156.240.123 (Global - Behavior Map Service)

Siteimprove Performance IP addresses

These IP addresses are used for performance monitoring by the Siteimprove Performance product.

18.223.89.15 (USA Midwest + Northeast)

3.209.121.100 (USA South)

52.8.130.130 (USA West)

3.123.96.88 (Western Europe)

3.10.81.130 (Great Britain and Ireland)

52.63.157.211 (Australia)

3.113.133.88 (Japan)

18.230.72.87 (South America)

13.48.252.26 (Northern Europe)

35.182.100.126 (Canada)

18.162.92.10 (Hong Kong)

Siteimprove Response IP addresses

These IP addresses are used for uptime monitoring by the Siteimprove Response Service.

52.62.119.24 (Sydney, Australia)

52.62.147.245 (Sydney, Australia)

54.233.93.223 (Sâo Paulo, Brazil)

52.29.157.54 (Frankfurt, Germany)

52.29.165.98 (Frankfurt, Germany)

35.154.71.109 (Mumbai, India)

52.78.201.227 (South Korea)

52.79.109.89 (South Korea)

52.49.22.75 (Ireland)

52.17.221.188 (Ireland)

52.192.200.212 (Tokyo, Japan)

52.77.4.220 (Singapore)

52.76.24.207 (Singapore)

52.71.233.116 (Virginia, USA)

52.70.218.116 (Virginia, USA)

52.89.228.115 (Oregon, USA)

52.33.171.213 (Oregon, USA)

52.8.142.166 (Northern California)

52.8.3.121 (Northern California)

Response user-agents

Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; Trident/6.0) Response by Siteimprove.com

Report and email IP addresses

Note: Emails are sent from the domain @siteimprove.com

General email IPs

The following IP addresses are used to send out Siteimprove emails (e.g. welcome emails, forgot password emails, report emails, etc.) but not including the Response alert email IPs.

149.72.248.150 - Receiving emails

168.245.125.127 - Receiving emails

185.229.144.61 - Viewing Dashboard reports linked from email (report.siteimprove.com)

80.62.246.46 - Viewing reports module data linked from emails (reports.siteimprove.com)

Response alert email IPs

The following IP addresses are used to send out Siteimprove Response alert emails only.

52.29.157.54 - Receiving Response emails

52.29.165.98 - Receiving Response emails

Service Hosting IP address

185.229.144.61

This is the hosting IP address for the Siteimprove Service on the following domains:

  • my2.siteimprove.com - Siteimprove Platform 
  • id.siteimprove.com - Siteimprove login
  • sso2.siteimprove.com - Single Sign-On version 2

Note: Crawling is not carried out from this IP address however this IP address may be required, for example, in a restricted CMS environment when a customer wishes to use the Siteimprove CMS Plugin. 

Domains

The following domains should not be blocked when using the services provided by Siteimprove:

  • *.siteimprove.com
  • *.siteimproveanalytics.com
  • *.siteimprove.net
  • *.siteimproveanalytics.io

HTML/CSS validation

HTML/CSS validation checks are performed from the IP:52.58.124.116

Text file of IP addresses

txt

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