This article explains how you can identify incoming traffic from Sitebulb Cloud on your websites, which can be used for whitelisting Sitebulb within your Web Application Firewall (WAF) or through your CDN.
Public IP Addresses
Sitebulb has two data centers, one in the UK and one in the US. When you sign up to Sitebulb Cloud, you will be assigned a data center (based on your location/preference) and an IP address from the ranges below.
UK Data Center
IP Range Start: 78.40.58.128
IP Range End: 78.40.58.147
US Data Center
IP Range Start: 78.40.59.128
IP Range End: 78.40.59.147
Dedicated IP Addresses
Certain Sitebulb Cloud plans enable you to have a dedicated IP address, which is unique and exclusive to you. This IP address will not be listed above, but will be communicated to you upon signup by our Customer Success Team.
To find the IP address used by your specific Sitebulb Cloud Workspace, navigate to Settings > Logging.
Sitebulb's User Agent
Sitebulb has two user agents, Sitebulb Desktop and Sitebulb Smartphone, which will be selected by default when you first set up an audit with Desktop or Mobile respectively.
Sitebulb Smartphone
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/W.X.Y.Z Mobile Safari/537.36 +https://sitebulb.com
Sitebulb Desktop
Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/W.X.Y.Z Safari/537.36 (compatible; Sitebulb/1.1; +https://sitebulb.com)
Chrome/W.X.Y.Z Placeholder
Like Googlebot, Sitebulb uses the placeholder Chrome/W.X.Y.Z to represent the latest version of Chrome, which is regularly updated when new versions of Sitebulb are released. We do this to keep our Chrome Crawler evergreen, in line with Google's rendering policy.
Example user-agent string for Sitebulb smartphone with a value in for W.X.Y.Z:
Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.7103.92 Mobile Safari/537.36 +https://sitebulb.com
Changing the User Agent
It is important to note that Sitebulb is not a public bot. The Sitebulb bot will only ever crawl a website if a user proactively chooses to use it while performing an audit within the Sitebulb software.
Although the Sitebulb user agent is the default option, users are able to choose between a number of user agents, including Google, Bing, Yahoo, and Yandex user-agents - and even custom user agents.
This changes which user-agent string Sitebulb will use when making HTTP requests, and can impact what content is returned by the website server. For more guidance on customizing user agent settings, read our Robots Directives settings guide.
Custom Headers
Sitebulb can also be configured to crawl using custom headers, which is an additional way that Sitebulb traffic can be identified - this is often used by customers when crawling staging environments that are otherwise publicly inaccessible.