How to Fix Google Search Console Errors: A Step-by-Step Guide

Google Search Console (GSC) is the heartbeat of your SEO. It's where Google communicates directly with you. But for many, opening the GSC Coverage report feels like deciphering ancient hieroglyphs. This guide will show you how to resolve the most common errors with confidence.

Understanding the "Page Selection" Errors

Errors like "Blocked by robots.txt," "Crwaled - currently not indexed," or "Duplicate without user-selected canonical" are frustrating. They essentially mean Google knows your page exists but refuses to show it to searchers. We'll show you how to use Scanly's Automatic Canonical Detection to fix these in bulk.

Fixing Core Web Vitals Red Flags

GSC's Experience report is notorious for flagging "LCP issue: longer than 2.5s" or "CLS issue: more than 0.1." These aren't just technical errors; they are ranking penalties. We break down how to identify the "hero element" causing your LCP issues and fix layout shifts using CSS best practices.

The Mobile Usability Traps

With mobile-first indexing, if your site fails mobile usability, it fails SEO. Common errors like "Text too small to read" or "Clickable elements too close together" are often caused by poor viewport settings or ad placements. Scanly's Responsive Audit simulates dozens of devices to catch these before Google does.

Error Type 1: 404 Not Found

A 404 error means Googlebot tried to access a URL that no longer exists on your server. Left unchecked, 404s waste crawl budget and signal neglect to Google. How to fix: Export the list of 404 URLs from GSC under Pages → Indexing. For each URL, decide whether to restore the content (if it still has value), set up a 301 redirect to the closest relevant page, or let it 404 if it has zero traffic and no backlinks. Use Scanly's bulk redirect checker to verify your redirect chains don't create loops. According to Google's help documentation on crawl errors, reducing 404s is one of the fastest ways to improve crawl efficiency.

Error Type 2: Soft 404

Soft 404s occur when a page returns a "200 OK" status but displays empty or near-empty content — essentially a "page not found" experience without the proper 4xx status code. Google's algorithm detects these by analyzing page content. How to fix: Scan your site for pages with thin content (under 150 words) that still show in GSC as "Submitted but not indexed." Either add substantial content (300+ words), add a meta robots "noindex" tag, or change the server response to a proper 410 (Gone) status. The Google Search Central guide on soft 404s recommends using the URL Inspection tool to see exactly how Google renders your page.

Error Type 3: Server Errors (5xx)

Server errors mean your web host failed to respond to Googlebot's request. Common causes include exhausted PHP memory limits, faulty plugins, or aggressive firewall rules. How to fix: Start by checking your server error logs (via cPanel or your host's dashboard). Common fixes include increasing PHP memory limit to 256M, disabling recently installed plugins to identify conflicts, and whitelisting Googlebot IP ranges in your firewall. If errors persist, upgrade your hosting plan — shared hosting budgets often cause 503 errors during traffic spikes. Use Scanly's uptime monitoring to track whether fixes actually resolve the issue before re-submitting URLs in GSC.

Error Type 4: Mobile Usability Issues

With Google's mobile-first indexing, mobile usability errors are effectively ranking penalties. The GSC Mobile Usability report flags pages where text is too small, clickable elements are too close, or content is wider than the screen. How to fix: The most common trigger is a missing or incorrect viewport meta tag. Ensure your head section includes <meta name="viewport" content="width=device-width, initial-scale=1">. For "content wider than screen" errors, check for horizontal scroll caused by wide images or tables — set max-width: 100% on all images and use overflow-x: auto on tables. Scanly's responsive audit checks 12 device profiles automatically to catch these before Google flags them.

Troubleshooting Decision Tree: When to Act vs. When to Wait

Not all GSC errors require immediate action. Here is a simple framework to prioritize: Critical (fix today): Server errors (5xx), security issues (hacked content, malware), and manual actions. These directly block indexing or de-rank your site. High (fix this week): 404 errors on pages with backlinks, mobile usability failures, and duplicate title tags. Medium (fix this month): Soft 404s on thin content pages, "Crawled — currently not indexed" for new pages, and sitemap submission errors. Low (monitor): "Discovered — currently not indexed" for low-value pages, valid with warnings in structured data, and orphaned pages with zero traffic. Scanly automatically categorizes your errors by severity so you always know what to tackle first — a process that, if done manually through GSC alone, takes 2-3 hours per audit.

Real Recovery Story: Reversing an Indexing Drop of 80%

An ecommerce site selling artisan coffee saw its indexed pages drop from 1,240 to just 240 overnight after a platform migration. The GSC report showed 900+ pages listed as "Submitted but not indexed" with no clear error message. The owner used Scanly to compare the pre- and post-migration page structure and discovered that the new platform had removed all category-level schema markup, added rel="nofollow" to every product link, and generated 400 duplicate URL variants through a faulty faceted navigation filter. By removing the nofollow attributes, adding <meta name="robots" content="index,follow"> to category templates, and setting canonical tags on filter URLs, they recovered 85% of their indexed pages within 3 weeks. Organic revenue rebounded from $4,200/month to $18,000/month over the next 60 days — a 328% increase driven entirely by fixing GSC-reported errors.

Frequently Asked Questions

Final Verdict: Action Plan for 2026 & Next Steps

In conclusion, optimizing your website is a continuous process that requires the right tools and strategy. By focusing on technical excellence, content quality, and user experience, you can achieve sustainable growth and outpace your competition.