Content & HTML Checks
20% of your score. These look at the message itself — the part you fully control on every send.
Spam Word Detection — 4 pts
Checks your subject and body for known spam-trigger words and phrases. Fix rewrite flagged phrases (“FREE!!!”, “act now”, “100% guaranteed”) in plain, specific language.
Subject Line Analysis — 3 pts
Checks subject-line quality — length, excessive capitals, and punctuation. Fix keep it
concise and human; avoid ALL CAPS and strings of !!!.
Text-to-Image Ratio — 2 pts
Checks the balance of text vs. images. Why it matters image-only emails are a classic spam signal and break when images are blocked. Fix include meaningful live text alongside images.
HTML Best Practices — 2 pts
Checks the email’s HTML quality. Fix use clean, email-safe HTML; avoid bloated or broken markup, scripts, and unclosed tags.
Broken Links — 2 pts
Checks that the links in your email actually resolve. Fix test every link before sending; remove or repair any that 404 or time out.
Short URL Detection — 2 pts
Checks for URL shorteners (bit.ly and friends). Why it matters shorteners hide the destination and are heavily abused by spammers. Fix link directly, or use a branded tracking domain.
Unsubscribe Header — 2 pts
Checks for a List-Unsubscribe header. Why it matters one-click unsubscribe is now
required by Gmail and Yahoo for bulk senders. Fix enable list-unsubscribe headers in your
ESP (most do this automatically).
Tracking Detection — 1 pt
Checks for tracking pixels and link wrapping. Fix keep tracking reasonable; excessive or third-party tracking can hurt trust — this is informational more than punitive.
Email Size — 1 pt
Checks the message size against Gmail’s ~102 KB clipping threshold. Why it matters clipped emails hide your footer — including the unsubscribe link. Fix trim bloated HTML and inline CSS to stay under the limit.
Image Alt Text — 1 pt
Checks that images have alt attributes. Fix add descriptive alt text — it improves
accessibility and shows useful text when images are blocked.