Keyword Research & Visibility Tools: Rankings, Indexing & Mobile Usability
Keyword research and basic visibility checks are where most SEO work starts — finding terms worth targeting, confirming a page is actually indexed, and checking whether it's usable on mobile (a hard requirement, not a suggestion, in Google's mobile-first indexing world). This guide covers the keyword and visibility toolkit still available on this site, and is upfront about a few related tools that no longer function.
Finding Keywords Worth Targeting
Use the Keyword Suggestion Tool to generate related terms and long-tail variations for any seed keyword — long-tail, lower-competition phrases are folded directly into this tool rather than needing a separate one, since they're really just longer, more specific variations of the same keyword research process.
Measuring Keyword Usage on a Page
The Keyword Density Checker shows how often a target keyword (and its variations) appears relative to total word count on a page. Keyword density itself isn't a direct ranking factor the way it was in early-2000s SEO, but extremely low usage can signal a page isn't clearly about its target topic, while unnaturally high repetition risks reading as keyword stuffing to both readers and modern algorithms.
Tracking Rankings
The Keyword Position Checker tells you where a specific page currently ranks in Google for a given keyword — the most direct way to measure whether SEO work is actually moving the needle, and to spot-check a competitor's ranking for the same term.
Confirming Indexing & Mobile Usability
Use the Google Index Checker to confirm whether a specific page is actually indexed — useful after publishing new content, or diagnosing why a page never appears in search results. Use the Mobile Friendly Test to check whether a page passes Google's mobile usability standards, which matter enormously since Google indexes and ranks primarily using the mobile version of a page (mobile-first indexing).
All Keyword & Visibility Tools
Frequently Asked Questions
Is there an ideal keyword density percentage?
No single number is "correct" — modern search engines evaluate topical relevance and natural language use far more than a specific repetition percentage. Writing naturally for a human reader, while making sure the target topic is clearly and thoroughly covered, matters more than hitting any particular density target.
Why would a page not be indexed even after being live for weeks?
Common causes include a robots.txt block, an accidental noindex tag, thin/duplicate content Google chose not to index, or simply no internal or external links pointing to the page for a crawler to discover it through. The Google Index Checker confirms the symptom; the actual cause usually needs separate investigation.
What happens if a page fails the mobile-friendly test?
Since Google predominantly uses the mobile version of a page for indexing and ranking (mobile-first indexing), a page with real mobile usability problems — tiny unreadable text, elements too close together to tap accurately, content wider than the screen — can be meaningfully disadvantaged in rankings even if the desktop version looks fine.
Why was the Website Worth Calculator discontinued?
It relied on Moz's Linkscape API for authority and traffic estimation data, which Moz permanently retired. Restoring genuine functionality would require licensing a different, actively-maintained data provider and rebuilding the estimation logic around it.
How often should I check my keyword rankings?
Weekly or biweekly is reasonable for most sites — frequent enough to catch real trends, infrequent enough to avoid reacting to normal day-to-day ranking noise that reverses itself without any action needed.
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JayDev is an independent developer who builds and maintains SEO Stack Tools. Tool descriptions and blog content are drafted with AI assistance, then reviewed and edited by JayDev for accuracy before publishing. Questions or corrections go straight through the Contact page.
