Tumblr is vulnerable to subdomain takeover, please reference Issue EdOverflow#240

Author: diophant0x

README.md

@@ -90,7 +90,7 @@ Squarespace                   | Not vulnerable |
 Statuspage | Not Vulnerable | `Status page pushed a DNS verification in order to prevent malicious takeovers what they mentioned in` [This Doc](https://support.atlassian.com/statuspage/docs/configure-your-dns/) | [PR #105](https://github.com/EdOverflow/can-i-take-over-xyz/pull/105) and [PR #171](https://github.com/EdOverflow/can-i-take-over-xyz/pull/171) | [Statuspage documentation](https://help.statuspage.io/knowledge_base/topics/domain-ownership) |          
 Strikingly                           | Vulnerable     | `page not found`                                                 |[Issue #58](https://github.com/EdOverflow/can-i-take-over-xyz/issues/58) | [Strikingly-Sub-takeover](https://medium.com/@sherif0x00/takeover-subdomains-pointing-to-strikingly-5e67df80cdfd)
 Surge.sh                         | Vulnerable     | `project not found`                                                     || [Surge Documentation](https://surge.sh/help/adding-a-custom-domain)
-Tumblr                             | Edge Case     | `Whatever you were looking for doesn't currently exist at this address` |
+Tumblr                             | Vulnerable     | `Whatever you were looking for doesn't currently exist at this address` | [Issue #240](https://github.com/EdOverflow/can-i-take-over-xyz/issues/240) | [Tumblr Custom Domains](https://www.tumblr.com/docs/en/custom_domains)
 Tilda                               | Edge Case | `Please renew your subscription`                                        | [Issue #155](https://github.com/EdOverflow/can-i-take-over-xyz/issues/155)[PR #20](https://github.com/EdOverflow/can-i-take-over-xyz/pull/20)
 Uberflip | Vulnerable | `Non-hub domain, The URL you've accessed does not provide a hub.` | [Issue #150](https://github.com/EdOverflow/can-i-take-over-xyz/issues/150) | [Uberflip Documentation](https://help.uberflip.com/hc/en-us/articles/360018786372-Custom-Domain-Set-up-Your-Hub-on-a-Subdomain)
 Unbounce                         | Not Vulnerable | `The requested URL was not found on this server.`                       | [Issue #11](https://github.com/EdOverflow/can-i-take-over-xyz/issues/11)