Two pure-PHP collectors, no Python/venv/subprocess needed:
- GravatarRunner (email): checks gravatar.com/avatar/{md5}?d=404 for a
200 vs 404. Scoped to that binary signal since Gravatar's profile
JSON endpoint now requires API auth even for real, public profiles
(confirmed against Gravatar's own creator's email).
- DnsRunner (domain): dns_get_record() for A/AAAA/MX/NS/TXT/CNAME. Raw
payload is naturally keyed by record type, which the existing
generic list-renderer on the investigation page turns into one
collapsible section per type with no UI changes needed.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
