Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Not found errors (404) due to being hacked
-
Hi Moz Guru's
Our website was hacked a few months ago, since then we have taken various measures, last one being redesigning the website all together and removing it from a WordPress platform. So far all is going well, except that the 404 not found errors keeps coming up in Google Webmaster tools. The URLs are spam pages that were created by the virus. And these spam pages have been indexed by Google, and now we are struggling to get rid of them.
Is there any way we can deal with these 404 spam pages links? Is marking all of them as fixed in the webmaster tools - search console- crawl errors helpful in any way? Can this have a negative impact on the SEO ?
Looking forward to your answers.
Many thanks.
-
I have a new client and just discovered on Open Site Explorer hundreds of links to ghost pages. The anchor text is stuff like Criminal Background Checks Las Vegas or Find Missing Persons.
I am not the webmaster. What advice should I give him?
Julie
-
Green Stone,
Thank you for your reply. At the moment we are manually trying to remove the links by using "Remove outdated content" tool whilst also creating a list of spammy links that might backlink to those spam pages we are removing, that were created by the virus.
Thank you.
-
Monica,
Sounds like you guys have taken the necessary steps to clean up the website and prevent it from occurring again. 404 spam links are a pain, that can often take some time to be removed from google's index all-together.
- A way to speed up the process is by changing the 404 status of these pages, and having it return a "410" error instead. This tells google it is a permanent non-existent page, and thus it will fall out of the index more quickly than a regular 404.
- In the meantime, if the number of 404 errors aren't overwhelming, you could try the "remove urls" tool within search console for these pages, which will temporarily remove them from the index all together. (emphasis on temporary)
- Marking them as fixed wouldn't be helpful, as the errors still exist, and would return to your search console not long after. (it certainly wouldn't harm your SEO, it just wouldn't be very helpful in this specific instance).
Hope that helps.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
404 Errors flaring on nonexistent or unpublished pages – should we be concerned for SEO?
Hello! We keep getting "critical crawler" notifications on Moz because of firing 404 codes. We've checked each page and know that we are not linking to them anywhere on our site, they are not published and they are not indexed on Google. It's only happened since we migrated our blog to Hubspot so we think it has something to do with the test pages their developers had set up and that they are just lingering in our code somewhere. However, we are still concerned having these codes fire implies negative consequences for our SEO. Is this the case? Should we be concerned about these 404 codes despite the pages from those URLs not actually existing? Thank you!
Intermediate & Advanced SEO | | DebFF
Chloe0 -
Forwarded vanity domains, suddenly resolving to 404 with appended URL's ending in random 5 characters
We have several vanity domains that forward to various pages on our primary domain.
Intermediate & Advanced SEO | | SS.Digital
e.g. www.vanity.com (301)--> www.mydomain.com/sub-page (200) These forwards have been in place for months or even years and have worked fine. As of yesterday, we have seen the following problem. We have made no changes in the forwarding settings. Now, inconsistently, they sometimes resolve and sometimes they do not. When we load the vanity URL with Chrome Dev Tools (Network Pane) open, it shows the following redirect chains, where xxxxx represents a random 5 character string of lower and upper case letters. (e.g. VGuTD) EXAMPLE:
www.vanity.com (302, Found) -->
www.vanity.com/xxxxx (302, Found) -->
www.vanity.com/xxxxx (302, Found) -->
www.vanity.com/xxxxx/xxxxx (302, Found) -->
www.mydomain.com/sub-page/xxxxx (404, Not Found) This is just one example, the amount of redirects, vary wildly. Sometimes there is only 1 redirect, sometimes there are as many as 5. Sometimes the request will ultimately resolve on the correct mydomain.com/sub-page, but usually it does not (as in the example above). We have cross-checked across every browser, device, private/non-private, cookies cleared, on and off of our network etc... This leads us to believe that it is not at the device or host level. Our Registrar is Godaddy. They have not encountered this issue before, and have no idea what this 5 character string is from. I tend to believe them because per our analytics, we have determined that this problem only started yesterday. Our primary question is, has anybody else encountered this problem either in the last couple days, or at any time in the past? We have come up with a solution that works to alleviate the problem, but to implement it across hundreds of vanity domains will take us an inordinate amount of time. Really hoping to fix the cause of the problem instead of just treating the symptom.0 -
How recovering the ranking after an hacking
Hello, I'm Alexia and a few months ago (end of March) my site has been hacked: hackers have created more than 30.000 links in Japanese to sell tires. I've successfully removed the hack and after 14 days of struggle even decided to change the domain to Siteground as they've been really keen to help. I still have some problems and I desperately need your tips. In search console, Google is informing about the +30.000 404 errors due to the content created by hackers which is not available anymore. I've been advised to redirect those links to 410 as they might have penalty effects in the SERP I have 50 503 server errors recognised by Google back in April but still there. What should I do to solve them? I still have a lot of traffic from Japan, even if I've removed all the content and ask Googled to disavow spamming backlinks. Do you think I have on page keywords? I don't understand how they can still find me. Those KWs are indexed in analytics, but not effective clicks, as the content is not there anymore. I also asked Google to remove links in search console with the tool removing links but not all of my requests have been accepted. My site disappeared from the organic results even if it hasn't been recognised as hacked in Google (there wasn't any manual actions on the Search Console). What can I do to gain the organic positioning once again? I've just tried to use the “Fetch as Google” option on search console for the entire website. Thank you all and I look forward to your replies. Thanks! Alessia
Intermediate & Advanced SEO | | AlessiaCamera0 -
Hacked website - Dealing with 301 redirects and a large .htaccess file
One of my client's websites was recently hacked and I've been dealing with the after effects of it. The website is now clean of malware and I already appealed to Google about the malware issue. The current issue I have is dealing with the 20, 000+ crawl errors which are garbage links that were created from the hacking. How does one go about dealing with all the 301 redirects I need to create for all the 404 crawl errors? I'm already noticing an increased load time on the website due to having a rather large .htaccess file with a couple thousand 301 redirects done already which I fear will result in my client's website performance and SEO performance taking a hit as well.
Intermediate & Advanced SEO | | FPK0 -
404's - Do they impact search ranking/how do we get rid of them?
Hi, We recently ran the Moz website crawl report and saw a number of 404 pages from our site come back. These were returned as "high priority" issues to fix. My question is, how do 404's impact search ranking? From what Google support tells me, 404's are "normal" and not a big deal to fix, but if they are "high priority" shouldn't we be doing something to remove them? Also, if I do want to remove the pages, how would I go about doing so? Is it enough to go into Webmaster tools and list it as a link no to crawl anymore or do we need to do work from the website development side as well? Here are a couple of examples that came back..these are articles that were previously posted but we decided to close out: http://loyalty360.org/loyalty-management/september-2011/let-me-guessyour-loyalty-program-isnt-working http://loyalty360.org/resources/article/mark-johnson-speaks-at-motivation-show Thanks!
Intermediate & Advanced SEO | | carlystemmer0 -
Is it a problem to use a 301 redirect to a 404 error page, instead of serving directly a 404 page?
We are building URLs dynamically with apache rewrite.
Intermediate & Advanced SEO | | lcourse
When we detect that an URL is matching some valid patterns, we serve a script which then may detect that the combination of parameters in the URL does not exist. If this happens we produce a 301 redirect to another URL which serves a 404 error page, So my doubt is the following: Do I have to worry about not serving directly an 404, but redirecting (301) to a 404 page? Will this lead to the erroneous original URL staying longer in the google index than if I would serve directly a 404? Some context. It is a site with about 200.000 web pages and we have currently 90.000 404 errors reported in webmaster tools (even though only 600 detected last month).0 -
Chinese Sites Linking With Bizarre Keywords Creating 404's
Just ran a link profile, and have noticed for the first time many spammy Chinese sites linking to my site with spammy keywords such as "Buy Nike" or "Get Viagra". Making matters worse, they're linking to pages that are creating 404's. Can anybody explain what's going on, and what I can do?
Intermediate & Advanced SEO | | alrockn0 -
Do 404 pages pass link juice? And best practices...
Last year Google said bad links to 404 pages wouldn't hurt your site. Could that still be the case in light of recent Google updates to try and combat spammy links and negative SEO? Can links to 404 pages benefit a website and pass link juice? I'd assume at the very least that any link juice will pass through links FROM the 404 page? Many websites have great 404 pages that get linked to: http://www.opensiteexplorer.org/links?site=http%3A%2F%2Fretardzone.com%2F404 - that was the first of four I checked from the "60 Really Cool...404 Pages" that actually returned the 404 HTTP Status! So apologies if you find the word 'retard' offensive. According to Open Site Explorer it has a decent Page Authority and number of backlinks - but it doesn't show in Google's SERPs. I'd never do it, but if you have a particularly well-linked to 404 page, is there an argument for giving it 200 OK Status? Finally, what are the best practices regarding 404s and address bar links? For example, if
Intermediate & Advanced SEO | | Alex-Harford
www.examplesite.com/3rwdfs returns a 404 error, should I make that redirect to
www.examplesite.com/404 or leave it as is? Redirecting to www.examplesite.com/404 might not be user-friendly as people won't be able to correct the URL in the address bar. But if I have a great 404 page that people link to, I don't want links going to loads of random pages do I? Is either way considered best practice? If I did a 301 redirect I guess it would send the wrong signal to the crawlers? Should I use a 302 redirect, or even a 304 Not Modified redirect?1