{"success":true,"data":{"id":"subject-url-shortener","label":"URL shortener host in subject line — protocol-free phishing bait","description":"The subject line contains a bare URL-shortener host like `bit.ly/free-gift` or `tinyurl.com/offer` without a protocol prefix. Real-world spam routinely uses bare shortener hosts in subjects because anti-spam filters scanning for protocol-prefixed URLs miss them entirely. Legitimate senders never put shortener URLs in a subject line — branded mail uses the company's own domain in plain prose. Narrower gap-filler complementing the broader `url-in-subject` signal which only matches `https?://` and `www.` prefixes.","tier":"danger","category":"subject","isThin":false}}