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Google: 75% of crawling issues come from two common URL mistakes

aftabkhannewemail@gmail.com / February 3, 2026

For site owners, SEO professionals, and digital publishers, optimizing for search engine crawling is foundational to achieving visibility. When Google’s systems can’t efficiently process a website, indexation suffers, ranking potential declines, and, crucially, server infrastructure can be severely stressed. Google has provided extensive data confirming that the vast majority of these debilitating crawling problems stem from just two highly common errors related to URL structure. According to findings shared by Google’s Gary Illyes on the recent Search Off the Record podcast, derived from the company’s 2025 year-end report on crawling and indexing challenges, a startling 75% of all reported crawling issues originate from errors involving faceted navigation and problematic action parameters. This statistic serves as a vital warning call for anyone managing a large-scale website, particularly e-commerce platforms. Understanding the root causes of these errors is essential because, as Illyes pointed out, by the time Google’s crawler realizes it is trapped in an infinitely generating URL space, the damage is already done. The bot has consumed significant resources, potentially overwhelming the host server and drastically slowing the entire site. As Illyes noted, “Once it discovers a set of URLs, it cannot make a decision about whether that URL space is good or not unless it crawled a large chunk of that URL space.” By this point, the site has often ground to a halt. Defining the Danger: Why Poor URLs Lead to Crawl Chaos To grasp the gravity of the 75% figure, it’s important to understand what happens when a site has a “crawling issue.” The Googlebot operates on a principle known as “crawl budget”—the amount of time and resources the search engine allocates to crawl a specific site without negatively impacting the user experience or overloading the server. When URLs are structured poorly, two major problems occur: The two dominant mistakes identified by the 2025 report are the primary drivers of these inefficiencies and disasters. Culprit One: Faceted Navigation (The 50% Problem) The single biggest cause of crawling failure, accounting for half of all reported issues, is faceted navigation. This problem is endemic, particularly within the world of e-commerce and large content repositories. What is Faceted Navigation? Faceted navigation refers to the system of filters and refining options typically found on category or search results pages. For example, on a clothing retailer’s site, a user browsing “Jackets” might filter by: When a user selects a filter, a URL parameter is appended. If a user selects “Red,” “Large,” and “Brand X,” the resulting URL can become excessively long and complex, such as: /jackets?color=red&size=large&brand=X. How Facets Create Infinite URL Space The core SEO danger lies in the vast number of combinations these filters can generate. If a site has 10 categories, 5 colors, 5 sizes, and 3 materials, the number of unique, filter-specific URLs that can theoretically be created explodes exponentially. To Googlebot, each unique combination of parameters creates a seemingly unique URL that must be crawled and assessed. Since the underlying content (the list of products) remains largely the same, the search engine wastes significant effort crawling millions of near-duplicate pages. This duplication dilutes PageRank, confuses canonicalization signals, and severely drains the crawl budget, preventing Google from efficiently indexing the pages that truly matter. Culprit Two: Action Parameters (The 25% Problem) The second most frequent cause of crawling issues, contributing 25% of the total, involves action parameters. While related to faceted navigation, action parameters are distinct because they typically trigger functional actions on the page rather than fundamentally changing the content being displayed for indexing purposes. Understanding Action Parameters Action parameters are URL components that often handle user interface interactions, but without providing unique indexable content. Common examples include: The issue here is that Google is forced to crawl and evaluate URLs that offer no indexable value. The underlying content is identical, but the unique URL structure tricks the bot into thinking a new page exists, leading to the same waste of resources seen with complex facets. Addressing the Other 25%: Less Common, Still Critical While faceted navigation and action parameters represent the lion’s share of problems (75%), Google’s report also breaks down the remaining portion of crawling challenges. These issues, though less frequent, are equally important for comprehensive technical SEO audits. Irrelevant Parameters (10%) Irrelevant parameters are tracking and diagnostic strings appended to URLs that serve no purpose for the content itself. They are crucial for internal analytics but are noise for search engines. This 10% category primarily includes: If not handled correctly, these parameters cause the same content duplication issue. For instance, a single article shared across five different social media platforms might generate five unique URLs due to differing UTM tags. Google has mechanisms to ignore common tracking parameters, but relying solely on those mechanisms can be risky. Problematic Plugins or Widgets (5%) A surprising 5% of crawling problems arise from poorly coded third-party tools, plugins, or widgets. This is particularly prevalent in CMS environments like WordPress. These tools, often designed for user functionality (like sophisticated site search or related content modules), can inadvertently generate malformed URLs or unnecessary internal linking structures that confuse crawlers. These issues often stem from: The Catch-All: “Weird Stuff” (2%) The final 2% is a repository for edge cases and highly specific technical anomalies. This includes complex issues such as double-encoded URLs (where characters are encoded twice, making them unreadable by standard parsers) and other structural anomalies that fall outside typical web development standards. While small in percentage, these issues can be highly localized and difficult to diagnose without specialized tools. The SEO Imperative: Why a Clean URL Structure Matters The findings from the 2025 year-end report reinforce a core principle of technical SEO: a clean, logical URL structure is not merely cosmetic; it is fundamental to the health and indexability of a website. When search engine bots encounter traps and duplication, the site’s recovery from server overload or indexation suppression can be a prolonged and painful process. The wasted resources mean fewer new pages are discovered, essential updates are delayed,

13 On-Page SEO Factors That Directly Impact Rankings

If your website isn’t ranking on Google, there’s a good chance your on-page SEO needs work. I’m going to walk you through the 13 most important on-page factors that actually move the needle in 2025 and beyond. Let’s skip the fluff and get straight to what works. How to Improve Your Ranking by Considering the On-Page SEO Factors On-page SEO is everything you can control directly on your website to help it rank better. Unlike off-page SEO (which is mostly about backlinks and external signals), on-page optimization is completely within your control. The problem? Most people either overomplicate it or focus on outdated tactics that don’t matter anymore. Here’s what actually matters right now. 1. Keyword Research and Optimization You can’t rank for keywords you haven’t targeted. Sounds obvious, but alot of websites fail here. Start with proper keyword research. Use tools like Google Keyword Planner, Ahrefs, or SEMrush to find keywords that: Don’t just go after high-volume keywords. A keyword with 50,000 monthly searches and massive competition is useless if you can’t rank for it. Sometimes a keyword with 500 monthly searches and low competition is way more valuable. Keyword placement matters: LSI keywords (Latent Semantic Indexing) are related terms that help Google understand your content better. If your writing about “coffee makers,” LSI keywords might include “brewing,” “espresso,” “French press,” “automatic drip,” etc. Include these naturally. Don’t force them. 2. Title Tag Optimization Your title tag is one of the most important on-page SEO factors. It’s what shows up in search results and tells both users and Google what your page is about. Title tag best practices: Good example: “How to Make Cold Brew Coffee at Home | Complete Guide” Bad example: “Coffee | How to Make It | Cold Brew Coffee Tutorial | Best Coffee Brewing Methods” The second one is keyword-stuffed, too long, and unclear. Don’t do this: Your title tag should match your H1 heading closely, but they don’t have to be identical. The title tag is for search engines and social shares, while the H1 is for users on your page. 3. Meta Descriptions Meta descriptions don’t directly impact rankings, but they absolutely impact click-through rates – and click-through rate does affect rankings. Think of your meta description as ad copy. You’ve got about 155-160 characters to convince someone to click your result instead of the nine others on the page. Meta description guidelines: Example: “Learn how to make cold brew coffee at home with our step-by-step guide. Includes brewing ratios, timing tips, and common mistakes to avoid.” That’s clear, includes the keyword, and tells you exactly what you’ll get. Common mistakes: Each page needs its own unique meta description. 4. Header Tags (H1, H2, H3, etc.) Header tags organize your content and help Google understand the structure and hierarchy of your page. The H1 tag is your main page title. You should only have one H1 per page, and it should include your primary keyword. H2 tags are your main section headers. These should cover the major topics on your page. H3 tags are sub-sections under your H2s. H4, H5, and H6 tags create even more detailed hierarchies, but most pages don’t need to go that deep. Here’s a proper structure: This structure makes sense both to humans reading your content and to Google trying to understand it. Header tag tips: Headers also improve readability. Nobody wants to read a 2000-word wall of text with no breaks. 5. URL Structure Clean, descriptive URLs rank better than messy ones filled with parameters and random characters. Good URL: yoursite.com/cold-brew-coffee-guide Bad URL: yoursite.com/p=12345?cat=beverages&ref=homepage Your URL should: For blog posts, include the post title or a shortened version. For product pages, include the product name. For category pages, include the category. URL structure for sites with multiple levels: Example: yoursite.com/recipes/coffee/cold-brew-guide Keep the structure logical and not too deep. Try to keep important pages within 3 clicks of your homepage. Important: Once a URL is published and getting traffic, don’t change it unless absolutely necessary. If you do change it, set up a 301 redirect from the old URL to the new one so you don’t lose rankings or create broken links. Read More: The Ultimate Google My Business Profile Optimization Checklist 6. Image Optimization Images make your content better, but they can also slow down your site if not optimized properly. They’re also an opportunity for additional rankings through image search. Image SEO basics: Alt text example: Good: “Cold brew coffee steeping in a glass container with coffee grounds” Bad: “coffee cold brew make cold brew coffee at home best cold brew” Alt text serves two purposes: If an image is purely decorative and adds no information, you can leave the alt text empty (alt=””) so screen readers skip it. Image file sizes: Use tools like TinyPNG, ImageOptim, or built-in compression in your CMS to reduce file sizes. 7. Internal Linking Internal links connect your pages together and help Google discover and understand your content. They also keep visitors on your site longer. Internal linking strategy: Anchor text matters: Good: “Learn more about choosing the best coffee beans for cold brew” Bad: “Click here to read more about this topic” “Click here” tells Google nothing about what the linked page is about. Descriptive anchor text passes relevance signals. Link structure tips: Internal linking is one of the most underutilized on-page SEO tactics. Most sites do it poorly or not at all. 8. External Links to Authoritative Sources Linking out to high-quality, relevant sources helps your credibility and can actually improve your rankings. Google wants to see that your content exists within the broader context of the web. Citing authoritative sources shows you’ve done your research. When to link externally: What makes a good external link: What to avoid: You don’t need alot of external links – a few high-quality ones per article is plenty. 9. Mobile-Friendliness Google uses mobile-first indexing, which means it looks at the mobile version of your site first when determining rankings. If