SEOInspector

About SEOInspector

SEOInspector — SEO analysis that starts free and scales with real data SEOInspector is a macOS app for auditing and researching SEO, built around one simple idea: some checks need real search data, and some don't. So it's split cleanly in two. Works instantly, no account needed Seven checks run entirely on your Mac, analyzing pages directly — no API key, no sign-up, no cost: - On-Page SEO Audit — crawls a page and runs over 100 checks across meta tags, headings, links, structured data, accessibility, and technical SEO, plus automatic tech-stack detection (CMS, analytics, CDN, server). - SERP Snippet Preview — see exactly how a page will look as a Google search result and as a shared social card, with warnings for missing titles, oversized descriptions, noindex tags, and missing preview images. - Structured Data Validator — finds every JSON-LD block on a page, checks it parses, and shows which schema.org types it declares. - Robots.txt Tester — checks whether a specific URL is allowed or blocked for Googlebot, Bingbot, GPTBot, or any crawler you choose. - Redirect Checker — follows the full redirect chain for a batch of URLs and reports final status codes, ideal before a site migration. - Sitemap Checker — parses sitemap indexes and URL sets (including gzipped sitemaps), then verifies a sample of URLs for status codes and robots.txt blocking. - Hreflang Checker — verifies that every hreflang alternate links back to the original page, catching the most common real-world hreflang bug. Bring your own DataForSEO API key for live search data Nine more checks are powered by real, live SEO data from DataForSEO — the industry data provider behind many SEO tools. To use them, you'll need your own DataForSEO API key: create a free account at DataForSEO, generate an API key, and add it in SEOInspector's Settings (it's encrypted and stored only on your Mac — never synced anywhere). DataForSEO's API is pay-as-you-go, not a subscription — there's no monthly fee to DataForSEO itself, you're billed only for the requests you actually make. SEOInspector calls the DataForSEO API directly with your key, with no proxy and no markup on top — you pay DataForSEO's own rates, nothing more. That makes SEOInspector a lighter-weight, pay-only-for-what-you-use alternative to subscription-based all-in-one platforms like Ahrefs or SEMrush: no locked-in monthly plan, no seat licenses — just a native Mac app plus usage-based API costs. The nine data-backed checks: - Keyword Research — search volume, CPC, competition, keyword ideas, live SERP results, and optional AI search volume. - Keyword Trends — compare search popularity for up to five keywords over time. - Domain Overview — a domain's estimated organic traffic, ranking keywords, top pages, and visibility trend over time. - Keyword Cannibalization - find keywords where multiple pages on the same domain compete against each other. - Competitor Discovery - find domains competing with yours in search results - no need to already know their names. - Backlinks — referring domains, full backlink profile, anchor text distribution, and link growth history. - Rank Tracker — track a domain's position for the keywords that matter to you, with historical trend charts. - LLM Mentions — see how often and where AI answer engines like ChatGPT mention your brand. - Brand Mentions — track mentions of a brand or keyword across the web, with sentiment and mentions-over-time. - Keyword Gap — compare two domains to find keywords a competitor ranks for that you don't. - Backlinks Gap — compare two domains' backlink profiles to find link-building opportunities. Built to keep your API costs down Every DataForSEO search is cached locally, so repeating the same search never bills you twice — a "Search again" button is always there when you actually want fresh data. Wherever possible, SEOInspector uses a single bulk API request instead of one call per item (for example, Rank Tracker checks an entire keyword list in one request, not one per keyword), keeping what you spend on DataForSEO lean by design.