TLDR
A 404 on a page you removed does not harm the rankings of your other pages. Google recommends returning 404 or 410 when you take content down for good and nothing replaces it. A page that was ranking and now returns 404 by mistake is a different case: it will lose its own visibility once Google recrawls the URL and processes the change, and that one you fix. Googlebot still spends a request on dead URLs, though it visits them less over time. Soft 404s can waste more crawling than that, and Google may treat a redirect to an unrelated homepage as a soft 404. Fix the broken URLs that affect your users, internal links, sitemap, traffic or backlinks, and leave the rest alone.
Key Takeaways
- Google’s position has held for fifteen years. Susan Moskwa wrote in May 2011 that 404s “alone” do not count against you, John Mueller said in March 2017 that 404s signalling a low-quality site is “definitely not the case,” and he repeated the point in January 2026.
- Google’s documentation states that 4xx status codes other than 429 “have no effect on crawl rate.” Individual crawl requests still cost something; your site’s crawl rate does not drop.
- The crawl budget guide recommends 404 or 410 for permanently removed pages and calls a 404 “a strong signal not to crawl that URL again.”
- Soft 404s can waste crawling. Google’s wording: “soft 404 pages will continue to be crawled, and waste your budget.”
- Mueller said in 2016 that redirecting all pages to the homepage is “something that we see as a soft 404s.” Google may classify an irrelevant redirect this way, so the common cleanup can work against you.
- Google’s Search Console guidance is to fix “only 404 errors that you link to yourself or list in a sitemap.”
- Gary Illyes in 2024: “you don’t need to fix all 404 errors: fix those that actually will help users.”
- Google’s crawl budget guide is “an advanced guide intended primarily for” large or rapidly changing sites. If your site is neither, Google says “checking the Page Indexing report regularly is adequate.”
You open the Page Indexing report in Search Console, and there are four thousand URLs under “Not found (404).” Some you deleted on purpose. Some you have never seen before. The advice you find next contradicts itself: one agency blog is titled “404 Errors Hurt SEO,” another says they are harmless, and a third warns that too many of them burn your crawl budget.
Google has answered this question in its own documentation since 2011. The answers are consistent. This article collects them, shows which popular claims they contradict, and gives you a way to decide which of those four thousand URLs deserve your afternoon.
What each response actually does
| Response | What Google does with it | Effect on crawling | Use it when |
|---|---|---|---|
| 404 Not Found | Removes a previously indexed URL. Never processes a newly discovered one. | No effect on crawl rate. Strong signal to stop crawling that URL. The request itself still costs something. | The page is gone and nothing on your site replaces it. |
| 410 Gone | Same handling as 404. Google treats all 4xx except 429 alike. | Same as 404. | You want to record that the removal was deliberate. The search outcome matches 404. |
| Soft 404 | Decides the URL has no usable content, although your server never said so. Covers 200 responses showing an error, and redirects to destinations that do not answer the request. | Can waste crawling, in Google’s own wording. | Never on purpose. Treat it as a misconfiguration. |
| 301 to a genuine replacement | Signals that the destination should replace the original URL. | Normal crawling of the destination. | The content moved, and the destination answers what the original promised. |
| 301 to an unrelated page | May classify the original URL as a soft 404, and may not consolidate its signals into the destination. | Can waste crawling. The size of the effect varies. | Avoid. Return 404 or 410 when nothing replaces the page. |
Do 404 errors hurt SEO?
No. A URL on your site returning 404 does not reduce the rankings of your other pages, and the number of them does not either.
Google published this answer on 2 May 2011, in a Search Central blog post by Susan Moskwa, then a Webmaster Trends Analyst. The question was direct: “So 404 errors don’t hurt my website at all?” Her answer:
“If some URLs on your site 404, this fact alone does not hurt you or count against you in Google’s search results.”
Two words in that sentence carry the whole argument. “This fact alone” means the status code, by itself, applied to your site as a whole. It does not mean a dead URL costs you nothing.
A page that ranked, earned links and brought you traffic, and now returns 404 by accident, will lose its own visibility. That happens once Google recrawls the URL and its indexing systems process the new response, not the moment your server starts returning the error. You did not incur a penalty. You removed the thing that was ranking.
Those two outcomes look identical in a traffic graph and call for opposite responses, which is why the distinction matters more than the headline answer.
The sentence Moskwa wrote next covers it: “However, there may be other reasons that you’d want to address certain types of 404 errors.” She then names them. Find out why Google sees the error on a page that matters to you. Redirect a misspelled URL somebody linked to, so you keep the visitors. Make your 404 page useful instead of printing “Not found.”
Several pages ranking for this question quote her first sentence, stop short of the second, and present what remains as evidence that 404s carry a cost in search.
SEO note: Keep two things apart. A sitewide ranking penalty for having 404s, which Google says does not exist. And the loss of traffic, links and rankings that belonged to a specific URL, which is real and which you fix by restoring or redirecting that URL.
What Google has said, 2011 to 2026
Fifteen years of statements from three Google representatives, across a blog post, two tweets, a video, a LinkedIn post and a Reddit thread. Google’s published documentation supports them.
| Date | Who and where | What they said | Evidence |
|---|---|---|---|
| 2 May 2011 | Susan Moskwa, Search Central Blog | 404s “alone” do not hurt you or count against you in search results. | Primary, Google documentation |
| 7 Oct 2016 | John Mueller, video | “So the the 301 redirect from all pages to the home page, that would be something that we see as a soft 404s.” | Reported verbatim, trade coverage |
| 17 Mar 2017 | John Mueller, Twitter | Asked whether 404s signal a low-quality site: “no, that’s definitely not the case.” | Reported verbatim, trade coverage |
| 9 Sep 2017 | John Mueller, Twitter | 404s “use the normal crawl budget, but we tend not to refresh them so often since they don’t ‘change’ that much.” | Reported verbatim, trade coverage |
| 24 Jun 2024 | Gary Illyes, LinkedIn | “you don’t need to fix all 404 errors: fix those that actually will help users.” | Reported verbatim, trade coverage |
| 2 Jan 2026 | John Mueller, Reddit r/SEO | “404s/410s are not a negative quality signal. It’s how the web is supposed to work.” | Reported verbatim, trade coverage |
| Current | Search Central documentation | 4xx codes other than 429 “have no effect on crawl rate.” Return 404 or 410 for permanently removed pages. | Primary, Google documentation |
Field check: The 2011 blog post and the current documentation are primary sources you can read yourself. The Mueller and Illyes statements reach us through Search Engine Roundtable’s reporting rather than from Google’s own site, which places them a tier below. They corroborate the documentation; they do not carry it.
The crawl budget question, separated into three parts
Several pages ranking for this question warn that a large number of 404s drains your crawl budget. The claim mixes up three things that Google’s documentation keeps apart.
Your site’s crawl rate. The HTTP status codes page states that 4xx codes other than 429 “have no effect on crawl rate.” Serving 404s does not make Google crawl your site less.
Individual crawl requests. Googlebot spends a request when it checks a dead URL, so the crawl is not free. Mueller said as much on 9 September 2017: 404s “use the normal crawl budget, but we tend not to refresh them so often since they don’t ‘change’ that much.”
Crawl efficiency over time. The crawl budget guide recommends returning “a 404 or 410 status code for permanently removed pages,” and explains why: “Google won’t forget a URL that it knows about, but a 404 status code is a strong signal not to crawl that URL again.”
Put together: a 404 costs a request now and reduces requests later. Advice to eliminate 404s inverts Google’s own guidance, because the 404 is the thing that winds the crawling down.
Mueller’s 2017 answer and the current documentation read as a contradiction only if you treat individual requests and sitewide crawl rate as the same measure. They are not, and when an old quote appears to disagree with current documentation, follow the documentation.
Field check: Check whether crawl budget is your problem at all before you spend time on it. Google calls its crawl budget page “an advanced guide intended primarily for” sites with over a million pages changing weekly, sites with over ten thousand pages changing daily, or sites with a large share of URLs reported as “Discovered – currently not indexed”. Google describes those numbers as “a rough estimate” rather than exact thresholds, and tells everyone else: “you don’t need to read this guide.” For a smaller site, “checking the Page Indexing report regularly is adequate.”
The redirect that can cost you more than the 404
Most of the advice on this topic gets this part backwards. A clean 404 costs you little. The usual remedy for it can cost you more.
Google’s crawl budget documentation names the response that wastes crawling:
“soft 404 pages will continue to be crawled, and waste your budget.”
— Google Search Central, Managing crawl budget for large sites
Google applies the soft 404 label when it decides a URL has no usable content, although your server never said so. Two situations produce it. A page that returns 200 while showing an error or nothing of substance. And a redirect whose destination does not answer what the original URL promised.
The second one is where site owners get caught. Faced with a Search Console report full of 404s, they redirect the dead URLs to the homepage. Mueller addressed that in October 2016: “So the the 301 redirect from all pages to the home page, that would be something that we see as a soft 404s.”
Say a site redirects a thousand deleted URLs to its homepage. Google may read those redirects as soft 404s, because the homepage does not answer what each original URL promised. Where it does, two things follow. The signals from those URLs may not consolidate into the destination. And the URLs can keep attracting crawl activity that a 404 would have wound down.
How much that costs depends on how Google classifies each URL, and you cannot work it out from the redirect count. The direction of the risk is clear enough to act on: a redirect to an unrelated page is the weaker choice, and 404 or 410 states the situation accurately.
SEO note: A 301 works when the destination replaces the original content. It weakens when the destination is somewhere to put the traffic and nothing more. Google judges the relationship between the two URLs. Your intent does not enter into it.
Glenn Gabe documented the same pattern in a case study on redirects to less relevant pages, and found Google classifying them as soft 404s.
404, 410, soft 404 or 301
Send a 404 when the page is gone
You removed a product, retired a blog post, or deleted a tag page, and nothing on your site replaces it. Return 404, make the page useful to whoever lands on it, and leave it alone. Google removes it from the index and comes back less often.
Send a 410 if you prefer, but expect no difference
410 Gone says the removal was deliberate. Google’s documentation groups it with the other 4xx codes: “All 4xx errors, except 429, are treated the same.” Mueller was blunter in January 2026, calling a 410 a 404 “essentially.” Use whichever your platform makes easy.
Send a 301 only to a genuine replacement
You merged two guides, moved a page to a new URL, or rebuilt a category that still covers the same ground. Redirect to the page a visitor was looking for. The 2011 blog post gives the clearest small example: somebody links to a misspelled version of your URL, so you redirect that typo to the real address and keep the visitors.
Never create a soft 404
Two ways site owners do it without meaning to. The first is redirecting dead URLs to the homepage or an unrelated category. The second is serving a page that says “not found” while returning 200. Google’s Search Console documentation covers the second: “We recommend returning a 404 response code for truly ‘not found’ pages.”
Which 404s to actually fix
Google gives a rule for this, and it is narrower than most audit tools imply. From the Page Indexing report documentation:
“In general, we recommend fixing only 404 errors that you link to yourself or list in a sitemap.”
The same page adds that “404 responses are not necessarily a problem, if the page has been removed without any replacement.” Gary Illyes put it from the other direction in June 2024: fix a URL that should be returning content, “especially if the URL is important to your users and thus site,” and otherwise “fix those that actually will help users.”
That turns the Search Console list into a short set of decisions.
| What you found | What to do |
|---|---|
| An important page returns 404 by accident | Restore the page or fix whatever broke. Illyes calls these the ones to fix as soon as possible. |
| The page moved and a genuine replacement exists | 301 to the replacement, then update the internal links pointing at the old URL. |
| You deleted the page and nothing replaces it | Keep the 404 or 410. Remove the URL from your sitemap. |
| One of your own pages links to the dead URL | Fix the link on the source page. This is your bug, not Google’s. |
| The dead URL has backlinks from other sites | Restore it, or redirect to a page that genuinely answers the same thing. Do not send it to the homepage. |
| A typo URL or a bot-generated path nobody links to | Leave the 404 in place. No action. |
| Search Console reports it as a soft 404 | Inspect the live URL. Add content if the page should have it, or return a real 404 if it should not. |
A technical SEO audit sorts your URLs into those rows. For the fourth row, a crawl with Screaming Frog lists the source page for every broken link, which Search Console does not.
Reading the Search Console report without panic
404s are normal. Finding them in Search Console tells you nothing on its own about your site’s health.
The Page Indexing report lists them under “Not found (404),” and the count tells you almost nothing either. A thousand 404s from bot-generated paths need no action. Five 404s linked from your own navigation need action today.
Sort by what links to the URL rather than by volume. Search Console shows referring pages for some 404s, and a crawl of your own site fills in the rest.
Two patterns in that report deserve a closer look. A sudden spike can come from a broken template, a migration, a server change or a batch of deliberate removals, so check the affected URLs before you decide which. And URLs under “Soft 404” matter more than the ones under “Not found,” because those are the ones Google keeps crawling.
When your whole site goes offline on purpose, the response code changes. Google’s documentation on pausing a site asks for a 503 with a Retry-After header during planned maintenance, not a 404. We covered how to configure that in Nginx, Apache and WordPress when Mueller raised it during a PHP patch window.
Dead URLs on other people’s sites are worth something to you. Broken link building finds pages linking to 404s in your subject area and offers your working page as the replacement. Some of your own 404s come from internal links still pointing at pages you moved or deleted.
Frequently Asked Questions
How many 404 errors are too many?
Google has not published a threshold, because the count is not what it responds to. Its documentation says 4xx codes other than 429 have no effect on crawl rate, and Mueller said in March 2017 that 404s signalling a low-quality site is “definitely not the case.” What matters is whether you link to those URLs yourself or list them in a sitemap, which is the rule Google’s Page Indexing documentation gives for deciding what to fix.
Should I use 404 or 410 for deleted pages?
Either works, and Google treats them the same. The HTTP status codes documentation states that “All 4xx errors, except 429, are treated the same,” and Mueller described a 410 as a 404 “essentially” in January 2026. A 410 declares the removal was intentional, which some site owners prefer for record-keeping, but it produces no different outcome in search.
Can I redirect all my 404s to the homepage?
Avoid it. Mueller said in October 2016 that redirecting all pages to the homepage is “something that we see as a soft 404s,” and Google’s crawl budget documentation states that soft 404 pages “will continue to be crawled, and waste your budget.” Where Google classifies your redirects that way, the signals may not consolidate into the homepage and the URLs can keep drawing crawl activity, so returning 404 or 410 for pages with no replacement is the safer choice.
Do 404 errors waste crawl budget?
Googlebot spends a request when it checks a dead URL, so there is a cost, but your site’s crawl rate does not fall as a result and Google returns to those URLs less over time. The documentation says 4xx codes other than 429 have “no effect on crawl rate” and calls a 404 “a strong signal not to crawl that URL again.” Soft 404s are the ones Google says keep getting crawled and waste budget.
My rankings dropped and I have lots of 404s. Are they the cause?
Look at what was on those URLs before you blame the status code. If pages that ranked and earned links now return 404, you lost the rankings and signals those specific pages held, which is a direct loss rather than a penalty applied to your site. Check whether the drop matches the dates those URLs started failing, allowing for the lag while Google recrawls them and processes the change, and whether anything else changed at the same time.
How do I fix a soft 404?
Decide which of two situations you are in. If the page should have content, add the content, because Google flagged it as empty or error-like. If the page is genuinely gone, return a real 404 status code instead of a 200, which is what Google’s Search Console documentation recommends for “truly ‘not found’ pages.” Where the soft 404 came from a redirect, send it to a page that answers the original request or stop redirecting it at all.
Does a custom 404 page help SEO?
It helps the person who landed there, which is why Google’s 2011 blog post recommends making the page useful rather than printing “Not found.” Give visitors search, navigation and links to your main sections so they can recover. The status code must still be 404, because a helpful page returning 200 becomes a soft 404.
Sources and References
Primary sources, Google documentation
- Do 404 errors hurt my site? — Susan Moskwa, Webmaster Trends Analyst, Google Search Central Blog, 2 May 2011
- HTTP status codes, network and DNS errors — Google Search Central, on 4xx handling and soft 404s
- Managing crawl budget for large sites — Google Search Central, on 404 and 410 recommendations, soft 404 waste, and which sites the guide is for
- Page Indexing report — Google Search Console Help, on which 404s to fix
- Redirects and Google Search — Google Search Central, on redirect types and signal consolidation
- Temporarily pause or disable a website — Google Search Central, on planned downtime
Google employees on record, reported by trade coverage
- Google On Why 404s Don’t Matter For SEO — Barry Schwartz, Search Engine Roundtable, 2 January 2026, reporting John Mueller in r/SEO
- Google: 404s Are Not A Low Quality Signal — Search Engine Roundtable, 17 March 2017, reporting John Mueller on Twitter
- Google: 404s Use Normal Crawl Budget — Search Engine Roundtable, 11 September 2017, reporting John Mueller on Twitter
- Google: 301 Redirects Of All Pages To Home Page Seen As Soft 404s — Search Engine Roundtable, 7 October 2016, reporting John Mueller on video
- Google On When To Fix Pages Returning 404s — Search Engine Roundtable, 24 June 2024, reporting Gary Illyes on LinkedIn
Secondary sources
- Proof That 301 Redirects To Less-Relevant Pages Are Seen As Soft 404s To Google — Glenn Gabe, GSQi, case study
TLDR A 404 on a page you removed does not harm the rankings of your other pages. Google recommends returning 404 or 410 when you…