Instagram SEO & Caption Optimizer
Analyze caption drafts for keyword densities, audit hashtags for safety ratings, and optimize fold layouts for mobile discovery.
Analyze keyword density, audit hashtag risks, and preview feed post truncation
How to use this tool
Instagram Discovery Signals
Instagram’s recommendation system indices and reads on-screen text overlays, caption text, and ALT text tags semantically.
- Above the Fold: The first 125 characters of your caption are visible in the user’s home feed before they get cut off by the “…more” button. Place your hook and core value statements there.
- Keyword Indexing: Include natural keywords matching search queries rather than generic hashtags.
- ALT Text: Optimize image ALT text (under 125 characters) describing your content for search discovery.
How to Audit Caption SEO Metrics
Input caption drafts and keywords to analyze density indicators and safe boundaries.
Paste Your Draft Caption
Input your proposed post text and primary target search keywords into the editor inputs.
Inspect Keyword & Length Audits
Review character counts, keyword density metrics, and check if your call-to-action is visible above the fold.
Verify Hashtag Safety
Scan hashtags to ensure no banned or spam-flagged terms are listed, then copy your formatted copy.
Frequently Asked Questions
Learn caption structure guidelines.
How many hashtags should I write in 2026?
Official creator guidelines suggest using 3 to 5 highly relevant niche hashtags rather than stuffing 30 generic blocks. The algorithm uses hashtags as classifiers to identify your target topic cluster, whereas search discovery is driven by keywords inside your caption text.
What are banned hashtags on Instagram?
Banned hashtags are tags that Instagram has temporarily or permanently blocked because of excessive spam uploads or community violations. Using even one banned hashtag can cause the algorithm to restrict the reach of that specific post (sometimes referred to as shadowbanning) or flag your account trust score.
Privacy & Safety Policy
All tools run completely in your browser via client-side JavaScript. We do not upload your files, interest parameters, or JSON payloads to any server. Your data remains yours.