fanfiction-fandom
FanFiction.Net
A veteran fanfiction site whose collections date from the era before AO3. There is no API and the site sits behind Cloudflare, so it is presented as a link to its search form. Worth checking for older fan works from that earlier period. Flagged as degraded: you may need to pass a verification challenge to get in.
captcha degraded
Search this archive
No programmatic check — opens the archive’s own search.
Why it’s useful & how it works
Niche/link-catalogue tier (see product-concept): surfaced as a described link to its search form. Probe verdict recorded for liveness.
Access
May require solving a captcha before it responds.