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MPG RESEARCH PAPER • PUBLISHED 2020-12-05 • UPDATED 2026-11-06 • 9 MIN READ

Technical SEO Crawl Budget & Index Bloat Audit: Fixing 'Crawled - Currently Not Indexed'

How to diagnose and eliminate parameter bloat, thin tag archives, orphan pages, and canonical loops that cause Googlebot to stall on B2B websites.

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Executive Summary (TL;DR) When 'Crawled - currently not indexed' exceeds 20% of your site in Google Search Console, pruning thin tag/author/date archives, consolidating near-duplicate pages via 301s, and tightening internal link depth to <= 3 clicks restores rapid indexation.
GSC Coverage StatusRoot Technical CauseForensic FixExpected Index Recovery
Crawled - currently not indexedThin boilerplate pages, parameter duplicates, weak internal linksConsolidate thin pages into pillar hubs + add contextual in-body links10–21 days after recrawl
Discovered - currently not indexedOrphan sitemap URLs with 0 internal incoming links or slow server TTFBLink from category hubs (click depth <= 2) + edge HTML caching5–10 days
Alternate page with proper canonicalURL query parameters (?ref=, ?s=, /page/2/) crawled unnecessarilyStandardize internal hrefs to exact canonical trailing-slash URLImmediate crawl savings

1. The Click-Depth Rule: Why Pages Buried 4+ Clicks Deep Drop Out of the Index

Googlebot assigns internal crawl priority based on how close a URL sits to your root homepage (/) and primary category hubs. When articles are buried behind paginated archives (/blog/page/7/) with only one incoming link, Google classifies them as low-importance.

Every money page and deep research guide on an MPG-audited site is reachable within 2 clicks from the homepage via thematic hub-and-spoke clusters.

  • Trailing Slash Consistency: Enforce trailing slashes across 100% of internal href attributes, canonical tags, and XML sitemaps so zero crawl budget is wasted on 301 normalizations.
  • Clean XML Sitemaps: Never include 301 redirects, 404s, or non-canonical URLs inside sitemap.xml.

Frequently Asked Questions

Should we block duplicate URL parameters in robots.txt or use canonical tags?

For sites under 10,000 pages, self-referencing canonical tags + stripping internal parameter links is cleanest; for massive faceted e-commerce sites, block infinite filter combinations in robots.txt.

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MPG Engineering Benchmark • United Kingdom

Manual Screaming Frog + GSC Indexation & Crawl Budget Forensic Audit

Technical SEO & Entity Graph Architect specializing in Screaming Frog deep crawls, connected Schema.org JSON-LD, and expired/aged domain migrations.

Best For: B2B Sites, Content Publishers, SaaS & Expired Domain Rebuilds
Typical Sprint Turnaround: 5–10 Days
Benchmark Deliverable Scope: Connected @graph JSON-LD Schema Pack (Organization, Service, FAQPage, Person), High-Intent Topical Map & Internal Cocoon Linking Blueprint

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