Do 404 and soft 404 errors really harm your website's SEO?

Why does Google consider 404s as normal?

404 errors indicate that a page no longer exists or never existed at all. Google constantly encounters them during web crawling. Pages disappear, URLs change, links break. This is the very nature of a living ecosystem made up of millions of sites.

If Google penalized every site with 404s, it would have to sanction almost the entire web. Thus, the algorithm distinguishes between normal technical errors and serious structural flaws. A handful of 404s from broken external links or the removal of outdated content reveals nothing about a site's editorial or technical quality.

What exactly is a soft 404?

A soft 404 is a page that returns an HTTP 200 (success) code when it should be returning a 404. Typically, this is an empty page or one with a “Product not found” message but without the appropriate error code. Google detects these situations by analyzing the page content: too little text, empty structure, error messages in the DOM.

The engine treats them as real 404s during indexing. The difference? A poorly managed soft 404 can waste crawl budget since Googlebot has to download the entire page to understand that it is empty. On a large e-commerce site with thousands of removed product listings, this matters.

Does this statement change anything about best practices?

No. Proper management of HTTP errors remains a solid technical foundation. What Google is saying is that their occasional presence is not a signal of overall poor quality. It does not exempt one from cleaning up.

A site with 30% of pages being 404 in its sitemap sends a signal of negligence. A site with 0.5% of 404s from outdated external links? Completely normal. The nuance lies in the relative volume and the origin of the errors, not just in their simple existence.

• Occasional 404s from external links or legitimate removals do not affect ranking
• Soft 404s are treated as real 404s by Google but can waste crawl budget if they are massive
• An abnormal volume of 404s (> 10-15% of crawled URLs) may indicate a structural problem that needs fixing
• 301 redirects are preferred over 404s when there is a logical alternative for the user
• Search Console notifies about 404s but does not count them as quality penalties

Is Google's position consistent with real-world observations?

Yes, largely. No direct correlation between moderate volume of 404s and traffic drop has ever been demonstrated. SEO audits on thousands of sites show that domains with 2-5% of 404s can rank perfectly in the top 3. The problem arises when the errors hide deeper dysfunctions.

For instance, a site generating thousands of soft 404s because its CMS creates ghost URLs with every internal search. In this case, the soft 404 is not the cause of the penalty; it is the symptom of a flawed architecture. Google notices this, and so does the user. The ranking drops, but not because of the error code.

What nuances should be added to this statement?

Google talks about “website quality,” a vague term that mixes E-E-A-T, user signals, and technical architecture. 404s may not affect the overall algorithmic quality score, but they degrade the experience if poorly managed. A visitor who lands on a 404 without a helpful redirect will leave the site. The bounce rate rises, and visit duration decreases.

These behavioral metrics, in turn, influence ranking. So saying “404s have no impact” is technically true at the quality algorithm level but misleading regarding the overall effect. [To be verified]: Google has never published a precise threshold beyond which a volume of 404s becomes problematic.

In what cases does this rule not completely apply?

When 404s affect strategic pages that absolutely must be accessible. A best-selling product page returning 404 because a technical bug has de-indexed it? It may not affect “overall quality” according to Google, but it directly harms revenue and SEO traffic for that query. In practical terms, it is a direct negative impact.

Another scenario: mass soft 404s indicating poor management of dynamic content. A media site generating a URL for every tag, even if empty, and returning 200 with zero articles. Google crawls, partially indexes, dilutes crawl budget. Result: real pages take longer to be crawled and refreshed.

What should you actually do with the 404s detected in Search Console?

First, sort by lost clicks volume. Search Console shows 404s with their traffic history. A page that generated 500 visits/month but now returns 404 deserves a 301 redirect to the closest content. A URL that was never visited from an outdated external link? Ignore it.

Next, analyze the source. If 90% of the 404s come from broken internal links, you have a maintenance issue. If it’s external linking, that’s normal and inevitable. Fix internal links first; they are within your control and degrade the user experience.

How to handle soft 404s to avoid wasting crawl budget?

Configure your CMS so that an empty or deleted page returns a real 404 code, not a 200. On WordPress, check the empty taxonomy templates. On Shopify, set products that are permanently out of stock. On custom sites, audit the search result pages and filters that create URLs without content.

Use a crawler like Screaming Frog or Oncrawl to identify pages with less than 200 words and a 200 code. Cross-reference with server logs to identify those that Googlebot crawls regularly. These are your priority candidates for cleanup or correct error coding.

What mistakes to avoid in managing 404s?

Do not redirect everything in 301 to the homepage. That’s the worst reflex. Google sees this as a disguised soft 404, and users find no value there. Instead, create a real useful 404 page with navigation suggestions, an internal search bar, and links to your main categories.

Also, avoid leaving temporary 302 redirects lingering for months. Google eventually treats them as 301, but this creates confusion. If a page is permanently deleted, either accept the 404 or place a 301 to a logical alternative. The clarity of the HTTP signal counts for the effectiveness of the crawl.

• Monthly audit of 404s in Search Console and sort by traffic impact
• Fix broken internal links detected by a crawler
• Set correct HTTP codes (404, 410) for empty or deleted pages
• Create a custom 404 page with useful navigation and internal search
• Redirect in 301 only to relevant alternatives, never to the homepage by default
• Monitor crawl budget via server logs to detect time-consuming soft 404s