Headline Analyzer
Score any headline on length, power words, emotional words, structure (how-to, listicle, question), SEO fit, and SERP preview. Add multiple headlines to compare side by side. Works for blog titles, email subject lines, ad headlines, and social post captions.
Content Intelligence
The headline does 80% of the work. Test more than one.
A great piece of content with a weak headline rarely gets opened. The scoring here is based on the patterns that consistently correlate with higher CTR across SEO, email, and paid: length discipline, power words, emotional language, specificity (numbers, years), and format cues (how-to, list, question). Compare at least three variants before publishing.
Add headlines to compare
Analysis
Reference: what we check
Scoring factors
Length (6-11 words ideal for SEO + email): too short lacks specifics, too long gets truncated.
Power words: words proven to lift CTR. "ultimate", "essential", "definitive".
Emotional words: engage curiosity or urgency. "surprising", "mistakes", "finally".
Numbers: listicle numbers (7 vs 10 vs 25) and years lift CTR.
Format cue: how-to, question, listicle, "best of".
SERP display preview
Google desktop title cap: ~600px (around 60 characters).
Google mobile title cap: ~870px (around 72 characters).
Gmail subject line visible: ~45-60 chars on desktop, ~35 chars on mobile.
LinkedIn post before "see more": ~140-210 chars depending on device.
Next steps
A strong headline needs a strong draft behind it
Pair with the Readability Score and AI Tell Detector to make sure the body reads as well as the headline promises.
Frequently asked questions
What does the tool score?
Headline length, word balance (common / emotional / power / uncommon), sentiment, and format (list, how-to, question).
What length works best?
Email subjects: under 50 characters. Blog titles: under 60 for SERP display. Ad headlines: Google RSA 30 characters per headline.
What are "power words"?
Words shown in A/B tests to lift CTR: proven, essential, instant, free, surprising. Overuse makes headlines read as clickbait.
What is sentiment analysis in headlines?
Positive, neutral, or negative tone. Both strong positive and negative outperform neutral for CTR.
Should I use numbers in headlines?
Yes. "7 ways to…" outperforms "Ways to…". Odd numbers slightly outperform even in some studies.
Are question-form headlines effective?
Yes for click-through, but can hurt time on page if the question is answered inside the first line. Use when the answer is nuanced.
What about colons and dashes in titles?
Colons work well for secondary context ("Marketing in 2026: What Changed"). Dashes read as list items. Both acceptable.
Does CAPS lift CTR?
Occasionally for ads but risks spam filters in email and looks desperate in editorial.
How many power words is too many?
More than 2 per headline reads as hype. One strong word placed well beats three stacked.
What is a "curiosity gap" headline?
A headline that teases without revealing: "The one metric most SEOs miss". High CTR but reader expectation is high; the content must deliver.
How does Google treat H1 vs title tag?
They can differ. Title tag is for the SERP, H1 for the page. Keep them similar but each tuned to its context.
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SEORCE for Chrome, Edge and Firefox
Audits the page you are on: headings, meta tags, schema, indexability, and whether AI crawlers can read it. Export the result as a PDF. Free, with no account.
It audits one page at a time and does not track AI answers. About the extension
Content in your brand voice
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SEORCE Content Studio learns how your brand writes from your own documents, URLs and files. It writes with three proofing passes, scores every draft for SEO, readability, E-E-A-T, GEO and intent, and exports ready-to-publish content.
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