IP Addresses
  • 06 Jun 2024
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IP Addresses

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Find the latest list of IP addresses on the following link

Starting from Feb 1, 2021, we send requests from the following ranges:

Note: These are not the usual /24 ranges!

104.224.12.0/22
168.119.133.64/27
188.34.148.112/28
188.34.148.128/25
188.34.149.0/27
157.90.99.0/27
159.69.172.160/27
159.69.173.64/27

The following ranges will be put in production around Jan 20, 2022:

157.90.99.0/27
159.69.172.160/27
159.69.173.64/27

They're static and used exclusively by Prerender.io.

The following ranges will be put in production around Jun 25, 2023 (By the end of 2023 only these ranges will be used by Prerender):

103.207.40.0/22
104.224.12.0/22

Some providers doesn't allow to set arbitrary ranges. Use these if you can only set /8, /16/ and /24 ranges

104.224.12.0/24
104.224.13.0/24
104.224.14.0/24
104.224.15.0/24
168.119.133.64/24
188.34.148.112/24
188.34.148.128/24
188.34.149.0/24
157.90.99.0/24
159.69.172.160/24
159.69.173.64/24

Our EU cluster may also send requests using IPv6, here are the current aggregated ranges:

These subnets could be shared with our vendor's other customers.

2a01:4f8:10a::/48
2a01:4f8:10b::/48
2a01:4f8:120::/48
2a01:4f8:13a::/48
2a01:4f8:13b::/48
2a01:4f8:140::/48
2a01:4f8:141::/48
2a01:4f8:160::/48
2a01:4f8:172::/48
2a01:4f8:201::/48
2a01:4f8:211::/48
2a01:4f8:212::/48
2a01:4f8:231::/48
2a01:4f8:241::/48
2a01:4f8:242::/48
2a01:4f8:251::/48
2a01:4f8:a0::/48
2a01:4f9:2a::/48
2a01:4f9:3a::/48
2a01:4f9:4a::/48
2a01:4f9:4b::/48
2602:2dd::/36

The following IP ranges will no longer be used from 2024 July 1st.

168.119.133.64/27
188.34.148.112/28
188.34.148.128/25
188.34.149.0/27
157.90.99.0/27
159.69.172.160/27
159.69.173.64/27
2a01:4f8:10a::/48
2a01:4f8:10b::/48
2a01:4f8:120::/48
2a01:4f8:13a::/48
2a01:4f8:13b::/48
2a01:4f8:140::/48
2a01:4f8:141::/48
2a01:4f8:160::/48
2a01:4f8:172::/48
2a01:4f8:201::/48
2a01:4f8:211::/48
2a01:4f8:212::/48
2a01:4f8:231::/48
2a01:4f8:241::/48
2a01:4f8:242::/48
2a01:4f8:251::/48
2a01:4f8:a0::/48
2a01:4f9:2a::/48
2a01:4f9:3a::/48
2a01:4f9:4a::/48
2a01:4f9:4b::/48

Instead of the above IP ranges we will be using our own IP addresses to Send requests :

103.207.40.0/22
104.224.12.0/22
2602:2dd::/36

For exclusive use of IP addresses that are employed by Prerender, please refer to the list provided on this link: https://ipranges.prerender.io/ipranges-all.txt. It is important to note that the list is dynamic, so it is highly recommended that you update it on your end regularly, say, once per month.

The above mentioned adresses are our egress IP addresses used by the rendering cluster and our ingress IP and Sitemap crawler might use differnet IP addresses. Specifically, our Sitemap crawler employs a dynamic IP address. For this reason, it is recommended that you permit the Sitemap crawler's connection based on the following user-agent string:
Prerender (+https://github.com/prerender/prerender)

We have a mix of servers in the US and Europe. Paid customers can request rendering from our US cluster only if you don't want to permit IPv6 subnets from your side.

From July 1, 2024, we’ll be using RFC6555 Happy Eyeballs so if you have reachable IPv6 addresses, those will be used.


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