Since general public institutions or banks operate closed networks for security reasons, there are some restrictions while using Kakao Login such as some IPs and ports are blocked. For this case, you need to add the following IP addresses to your own firewall allowlist list. Note that these domains only support basic HTTPS/SSL communication over 443 port.
Here are the domains the Kakao platform uses:
| Domain | Description | IP address |
|---|---|---|
https://kauth.kakao.com |
Used when issuing OAuth2 authentication tokens and when users agree to provide personal information to third parties. |
203.133.166.32 27.0.237.15 |
https://kapi.kakao.com |
Used to retrieve user information or to call other Kakao APIs after obtaining tokens. | 203.133.166.33 211.249.200.134 |
https://accounts.kakao.com |
Used to log into Kakao with user’s Kakao ID and password if the Simple login does not work. | 211.231.99.67 110.76.142.110 |
https://auth.kakao.com |
Used for Kakao Account on mobile devices. | 219.249.227.143 210.103.240.15 110.76.141.64 |
https://dapi.kakao.com |
Used for the Search APIs and Local APIs. | 211.249.220.147 121.53.104.36 |
https://apps.kakao.com |
Used for the function to allow or block Kakao Talk messages. | 27.0.237.17 203.133.166.34 |
https://talk-apps.kakao.com |
Used for the Kakao Talk universal link service. | 110.76.142.54 27.0.236.28 |
https://kakaoi-newtone-openapi.kakao.com |
Used for the Speech APIs. | 121.53.202.215 |
NOTE:
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If google domains such as CAPTCHA are called, see https://code.google.com/archive/p/recaptcha/wikis/FirewallsAndRecaptcha.wiki
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Domain and IP mapping can be changed later even though domains do not change. Thus, we recommend applying real-time IP addresses through look-up.
(This post was updated on September 27, 2022.)