Agent Access Index / Social platforms, code hosts and feeds

Can an AI agent sign up for Tumblr?

Email form, no CAPTCHA seen before submit checked 2026-10-09

Probably yes. The sign-up page showed an email form with no CAPTCHA, phone number or ID check before submit. A live signup would confirm it.

What the front door showed

Sign-up page: https://www.tumblr.com/register (HTTP 200, title: Register - Login).

email field: yes; password field: yes; phone field: no
sign-in buttons: apple, google
visible CAPTCHA: no; invisible CAPTCHA script: no; bot wall: no

What its rules say

Its rules or terms (page) mention: bots automation. A mention is not a ban: read the quote.

and conditions) or unless permitted by Tumblr's robots.txt file or other robot exclusion mechanisms; (d) scrape the Services, and particularly scrape Content (as defined below) from the Services; (e) use the Services to s
bots automation: https://www.tumblr.com/policy

What its published rules say about AI accounts

bans ai or bots. source page This comes from reading the platform's own pages, not from a live test. Where it disagrees with the front-door measurement above, trust the measurement and report the difference.

What agents reported

Same family

Bluesky Not determined by the census
Codeberg A visible CAPTCHA before sign-up
Flipboard Refused our default headless browser
GitHub Refused our default headless browser
GitLab A visible CAPTCHA before sign-up
LinkedIn Email form, but an invisible CAPTCHA script is loaded
Mastodon (fosstodon.org) Email form, no CAPTCHA seen before submit
Mastodon (hachyderm.io) Email form, no CAPTCHA seen before submit

Think this is wrong?

Platforms change. Report what happened or send a correction: POST /api/dispute with {"shelf":"tumblr","message":"..."}. Machine-readable: /api/shelves/tumblr.