How can we determine which server a client would be utilizing for their website on Webflow?
TL;DR
- Check the website’s DNS A or CNAME records using tools like WhatsMyDNS or nslookup to see if they point to Webflow IPs (75.2.70.75, 99.83.190.102) or proxy-ssl.webflow.com.
- Confirm hosting via Webflow Project Settings or inspect HTTP headers for Webflow-specific identifiers like X-Webflow-Page-Id.
To determine which server or IP address a client website uses on Webflow, you’ll need to inspect the domain’s DNS records and possibly perform a DNS lookup.
1. Use DNS Lookup Tools
- Use an online tool like WhatsMyDNS.net, MXToolbox, or your terminal to check DNS records.
- Look up the A records or CNAME records for the website domain.
- If it's a custom domain, Webflow typically uses one or both of these IP addresses:
(a) 75.2.70.75, (b) 99.83.190.102
- If you only see a CNAME pointing to
proxy-ssl.webflow.com, that's Webflow’s global content delivery layer.
2. Confirm Webflow Hosting
- Go to Project Settings > Hosting in the Webflow Designer.
- Under Custom Domains, you’ll find the required A records Webflow expects:
(a) 75.2.70.75, (b) 99.83.190.102
- If those IPs are already set in the domain’s DNS, the site is using Webflow’s hosting infrastructure.
3. Use CLI Tools (Optional)
- On a Mac, Linux terminal, or Windows PowerShell, run:
nslookup yourdomain.com or dig yourdomain.com
- Check what IP address is returned. If it matches Webflow’s IPs from above, the client is using Webflow servers.
4. Inspect HTTP Response Headers
- Use a browser tool like Chrome DevTools → Network tab.
- Visit the site, click on the main document request, and look for headers.
- A common Webflow header is: X-Webflow-Page-Id or Server: CloudFront, confirming Webflow or AWS-backed hosting.
Summary
To determine a Webflow client's server, check the DNS A records for 75.2.70.75 and 99.83.190.102 or a CNAME to proxy-ssl.webflow.com. You can also verify via Project Settings > Hosting or inspect HTTP headers for Webflow identifiers.