Most paid SEO suites charge for index coverage reports. But you can get the same — often better — data from free tools if you know their quirks. We tested five options against real sites and ranked them by accuracy, speed, and hidden limits.
A free tool to check indexed pages in Google sounds like a no-brainer. But here's what most SEOs discover after the first 50 queries: the tool says '1,240 indexed pages', but Google Search Console (GSC) shows 1,078. The discrepancy is rarely a bug — it's a difference in how each tool counts.
GSC uses Google's own index logs, delayed by up to 3 days. Third-party tools either scrape search results (which caps at ~400 URLs per query) or use a cached index fragment. SiteChecker, for instance, runs its own crawler and compares it to Googlebot's last visit — it can miss recently published pages entirely. In practice, when you rely on a scraped index count for a 50,000-page site, you're looking at a 20% error margin. That's not a tool problem. It's a sampling problem.
We tested five free checkers against 12 domains ranging from 50 to 150,000 pages. Below are the tools that survived the gauntlet.
| Tool / Data Source | Raw Accuracy vs GSC | Max URLs Checked | Hidden Limit / Failure Mode | Best For |
|---|---|---|---|---|
| Google Search Console Official index log via URL Inspection API | 100% (ground truth) | Unlimited (per property) | Requires property verification; data lag up to 3 days; no bulk export without API | Primary source for any site owner |
| SiteChecker Crawler + Google index comparison | 85–92% | Up to 100,000 URLs (free tier) | Skips blocked URLs; counts redirect chains inconsistently; slow for large sites | Quick sanity check for small to medium sites |
| SEOquake Browser extension pulling Google SERP data | 70–80% | ~400 per query (SERP pagination limit) | Only shows first 400 results; heavily impacted by personalization and location | Rapid surface check on any page without login |
| Siteliner Dedicated crawl with index ratio | 75–85% | 250 pages per scan (free) | Very limited page cap; treats duplicate content as non-indexed; no live index check | Micro-sites and landing page audits |
| Google Index API via Colab Direct API calls using your GSC data | 100% (same as GSC) | Limited by API quota (200 URLs/day free) | Requires coding; OAuth setup; daily quota per project | Developers and advanced technical SEOs |
Pull 'Pages' report from Google Search Console. Filter by status 'Submitted and indexed'. Export CSV.
Use SiteChecker or SEOquake on the same domain. Note the tool's count.
Subtract the tool count from GSC count. If gap > 15%, investigate blocked URLs or recent publishes.
Use GSC URL Inspection on a sample of 10 missing pages. Check for 'Blocked by robots.txt' or 'Noindex'.
Fix robots.txt or meta tags, request indexing via GSC, then re-run the tool. Repeat until gap < 5%.
Verify you own the property (GSC) – otherwise any tool is guessing.
Check the date of the last crawl: tools often use cached data older than 7 days.
Filter out noindex URLs manually: no tool catches meta noindex correctly 100% of the time.
Test the tool on a small site (under 500 pages) first to calibrate its error margin.
Run two tools and compare: if they disagree by more than 10%, GSC is the tiebreaker.
Remember: 'indexed' does not mean 'ranking'. A page can be indexed but have zero impressions.
We ran a full index audit on an e-commerce site with 12,443 published product pages. GSC reported 8,912 indexed pages (71.6% index rate). SiteChecker returned 7,194. SEOquake showed 'About 6,900 results' in the SERP snippet.
We then used Google's URL Inspection API documentation to batch-check 200 random unindexed URLs. 83 were blocked by a misconfigured robots.txt disallow for '/products?sort='. 47 had a noindex tag accidentally inherited from a staging template. 32 were canonicalized to an old domain that 301-redirected. After fixing the robots.txt and removing the noindex tag, we requested re-indexing via GSC. One week later, the indexed count rose to 10,384 – a 16.5% increase. The free tools still showed 7,800 and 7,100 respectively because their caches hadn't refreshed. Moral: free tools are great for spotting problems, but GSC is the only source of truth for current index status.
| Option | What happens | Verdict |
|---|---|---|
| Free tools check index count but give zero diagnostic data on why pages are missing. | Paid tools (Ahrefs, Semrush) provide broken link reports, canonical chain analysis, and index status per page. | Upgrade if you need to fix indexing issues, not just count them. |
| Free tools have strict rate limits (e.g., 250 URLs per scan). | Paid tools crawl unlimited URLs and update weekly. | For sites over 10,000 pages, paid tools save hours per month. |
| Free tools cannot check GSC's 'Discovered – currently not indexed' status. | Paid tools pull from GSC API and show this critical state. | If you see a large 'not indexed' bucket, paid tools are essential. |
Free tools break in predictable ways. Here are three we encounter regularly:
1. Blocked URLs. If a page is disallowed in robots.txt, most crawlers simply skip it. They report it as 'not found' or 'not indexed', when really Google may have indexed it before the rule was added. The tool gives a false negative. Always cross-check with GSC URL Inspection.
2. Duplicate lists. Some tools treat paginated URLs (page=2, page=3) as separate pages even when they have a rel=canonical pointing to page=1. This inflates the count. You can spot it when the tool reports more 'indexed' URLs than your total site pages.
3. Empty results. New domains with zero backlinks sometimes return no results in SEOquake or SiteChecker, even if GSC shows 50 indexed pages. The tool's index fragment lacks coverage. Solution: wait 2 weeks or use GSC directly.
For a deeper diagnostic workflow, refer to our Google Index Update Detection Checklist to identify whether a drop is a tool error or a real algorithm shift.
Google Search Console is non-negotiable for each client property. For bulk checks across dozens of domains, use a Google Colab notebook with the Index API (200 URLs/day per project free). SiteChecker can be used for quick client demos but never as a final report. Agency tip: set up a GSC property group to see all sites in one dashboard.
Ask the guest post host to share a GSC read-only view via the User Management panel. If they refuse, use SEOquake on the specific post URL. SEOquake shows the number of indexed pages for the entire domain, not the single post. For a single URL check, use Google's URL Inspection Tool (free, no login needed for public URLs) or the 'site:domain.com/post-slug' search operator.
Google's Indexing API is free but limited to 200 URLs per day per project. It works best for job posting or live-stream pages that change often. For bulk historical data, use the GSC API via Python or R. Third-party APIs (like SiteChecker's) are not free for automation. Build your own Colab notebook to avoid per-request costs.
No reliable bulk method exists without site ownership verification. Tools that claim to offer this use cached SERP data and are inaccurate (error rate > 30%). The safest free approach is to verify your site in GSC (takes 5 minutes via DNS or HTML file upload) and export the full Pages report as CSV. For unverified sites, manual 'site:' searches are the only option, capped at ~400 results.
After an update, free tools often show stale data for 1-2 weeks because they rely on cached index fragments. Use GSC's 'Pages' report with the date range filter set to 'Last 7 days' to see real-time fluctuations. If you see a drop of >20%, check for manual actions or core update volatility. Our <a href='https://googleindexupdatef.vercel.app/google-index-update-detection-checklist'>detection checklist</a> helps separate tool lag from actual deindexing.
For backlink outreach, you need per-page index status, not a domain-wide count. Use GSC URL Inspection for each target page. SEOquake's 'Indexed' indicator in the SERP is fast but only shows whether the page is in the index, not its quality. SiteChecker can crawl the page and compare its content to Google's cached version, which helps identify thin pages that outreach partners might reject.
You can use the 'site:' operator combined with a third-party tool like SEOquake, but accuracy drops significantly. A better approach: ask the client to run a single GSC export (Pages report as CSV) and share it. If they refuse, build a simple script that queries the Google Custom Search API (100 free queries/day) and parses the result count. This is not reliable for sites over 500 pages.
Look for the ratio of 'Submitted and indexed' vs 'Discovered – currently not indexed' in GSC. Free tools never show the latter. For error diagnostics, use SiteChecker's crawl report to find 4xx/5xx status codes and redirect chains. A high number of redirect chains (more than 3 hops) often correlates with indexing delays. Check the 'Last crawl' date for each page – if it's older than 30 days, the page may be deprioritized.
Google Search Console is the only accurate source because it respects hreflang annotations. Free crawlers (SiteChecker, Siteliner) often treat each language version as a separate page and overcount. To check, filter GSC by country or language. If you see the same URL appearing under multiple hreflang entries, your tags are misconfigured. SEOquake will show inflated numbers for multilingual sites – ignore it.
New blogs (< 3 months old) often have patchy index coverage. Free tools rely on publicly cached data which may not exist yet. Wait until GSC shows at least 10 indexed pages, then run SiteChecker. Alternatively, use the 'site:yourdomain.com' search in incognito mode. If Google shows zero results, submit your sitemap via GSC and request indexing for your top 5 posts. Re-check after 48 hours.
Quick calculator. Put in the expected monthly value of a page or link batch and the natural waiting time.