SEO Content Readability & Keyword Density Checker

Check your content before you publish.

SEO Content Readability & Keyword Density Checker analyzes pasted content for word count, estimated reading time, a Flesch Reading Ease score, keyword density against a target keyword or phrase, and markdown-style heading structure — flagging the specific issues that hurt search performance: keyword stuffing above 3% density, a missing target keyword, thin content under roughly 300 words, multiple H1 headings, and difficult-to-read sentences. Every check runs against the actual pasted text, not a generic checklist, so the warnings are specific to the content in front of you.

• →Word count, estimated reading time, and Flesch Reading Ease readability score
• →Keyword density for single words or multi-word phrases, with word-boundary matching
• →Detects markdown-style heading structure and flags multiple H1s
• →Flags keyword stuffing (over 3% density) and missing target keywords
• →Flags thin content under roughly 300 words
• →100% local — nothing you paste is sent to a server
• →Watermarked by Cikal Studio Labs · Works on any device, no install required