Check your URL structure for SEO issues

SiteCurl extracts every internal link on your pages and checks each URL for four problems: uppercase characters, underscores instead of hyphens, paths longer than 100 characters, and directory depth beyond 4 levels.

Uppercase URLs cause duplicate content issues because some servers treat /About and /about as different pages. Underscores are treated as word joiners by Google, so /my_page is read as one word instead of two. Long URLs get truncated in search results and are hard to share. Deeply nested URLs signal to search engines that the content may not be important.

The check runs on every internal link found across all pages in your scan. This catches URLs in navigation menus, footer links, sidebar links, and in-content references. SiteCurl lists the specific URLs with issues so you know exactly what to fix.

URLs serve two audiences: search engines and humans. Search engines parse URLs to understand page relationships and topic relevance. Humans read URLs in search results, browser bars, and shared links to decide if a page is worth clicking.

The most common problem is underscores. Google's own guidance says to use hyphens as word separators in URLs. The reason is technical: Google treats hyphens as word separators but treats underscores as word joiners. A URL like /red-shoes is parsed as 'red' and 'shoes' (two separate words). A URL like /red_shoes is parsed as 'redshoes' (one word). This affects how the URL matches search queries.

Uppercase characters create a different problem. Some servers are case-sensitive (Linux-based servers typically are) and some are not (Windows servers typically are not). If /About and /about both resolve to the same page, search engines may index them separately, splitting the ranking signals between two URLs.

URL length matters for usability. Long URLs get truncated in search results with an ellipsis. When someone shares a long URL in a message or email, it often wraps across lines and looks messy. Short, descriptive URLs are easier to read and more likely to be clicked and shared.

Directory depth (how many path segments a URL has) correlates with how search engines weight the content. Pages at /products/shoes are generally considered more important than pages at /products/category/subcategory/brand/shoes. Keeping URLs flat signals that the content is accessible.

Clean URLs are a ranking signal. Google has stated that URL structure helps them understand the content of a page. URLs with clear, descriptive words rank better than URLs with IDs, parameters, or encoded characters.

URLs also affect click-through rates in search results. When a visitor sees a clean URL like /pricing under your search listing, they know what to expect. A URL like /page?id=47&cat=3 tells them nothing. The clean URL gets more clicks.

Bad URL patterns compound over time. Every new page created with underscores or uppercase characters adds another URL that needs fixing later. Establishing clean URL conventions early saves significant cleanup work down the road.

WordPress sites are the most commonly affected. Default WordPress slugs use hyphens, but custom post types, plugins, and manually entered URLs often introduce underscores or uppercase characters. A site with 100 blog posts may have a mix of URL styles depending on when each post was created.

E-commerce sites with complex category structures tend to have deeply nested URLs. A product at /store/clothing/mens/casual/shirts/blue-oxford has six levels of nesting. Flattening the structure to /mens-shirts/blue-oxford is better for both SEO and usability.

Legacy sites that have been running for years accumulate the worst URL problems. Multiple CMS migrations, developer handoffs, and ad-hoc URL decisions create inconsistent patterns that SiteCurl catches systematically.

Step 1: Convert uppercase URLs to lowercase. Set up server-side rules to redirect uppercase URLs to their lowercase versions. In Nginx, use a map directive to lowercase the URI. In Apache, use RewriteRule with the [L,R=301] flag. This handles both existing links and future visitors.

Step 2: Replace underscores with hyphens. Update your URLs to use hyphens instead of underscores. Set up 301 redirects from the old underscore URLs to the new hyphen versions so existing links and search rankings are preserved.

Step 3: Shorten long URLs. Remove filler words like 'and,' 'the,' 'of' from URL slugs. Use 3 to 5 descriptive words per slug. /how-to-fix-broken-links is better than /a-complete-guide-to-finding-and-fixing-all-the-broken-links-on-your-website-in- 2024.

Step 4: Flatten deep URL structures. If your URLs have more than 4 levels of nesting, consider simplifying the hierarchy. Move important pages closer to the root. /blue-oxford-shirt is better than /store/clothing/mens/casual/shirts/blue-oxford from both an SEO and usability standpoint.

Step 5: Set URL conventions for new content. Document your URL guidelines so every new page follows the same pattern. Lowercase, hyphen-separated, under 100 characters, no deeper than 4 levels. Enforce this in your CMS settings where possible.

Mistake 1. Changing URLs without redirects. If you rename a URL, the old one returns a 404. Set up a 301 redirect from the old URL to the new one before making the change. This preserves search rankings and prevents broken links.

Mistake 2. Fixing the URL but not the internal links. After changing a URL, update all internal links that point to the old version. Otherwise, visitors follow the old link, get redirected, and the redirect adds extra load time.

Mistake 3. Over-shortening URLs. A URL should be short but descriptive. /p/47 is short but meaningless. /blue-oxford-shirt is short and tells visitors what to expect. Use enough words to describe the content clearly.

Mistake 4. Using URL parameters for important pages. URLs with query parameters like ?id=47 are harder for search engines to parse and may be treated as duplicate content. Use clean path-based URLs for any page you want indexed.

After making changes, run another SiteCurl scan. The URL structure check should show zero issues for uppercase characters, underscores, long paths, and deep nesting. Check that the redirects from old URLs are working by visiting them directly and confirming they land on the new URLs.

To check a specific URL manually, look for uppercase characters, underscores, and count the path segments. The URL should be all lowercase, use hyphens as separators, be under 100 characters, and have no more than 4 directory levels.

Clean URL structure is an easy SEO win. Use lowercase letters, hyphens instead of underscores, keep paths short, and avoid deep nesting. Fix existing issues with 301 redirects and set conventions so new content follows the same pattern from the start.