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.
Why are bit.ly links being indexed and ranked by Google?
-
I did a quick search for "site:bit.ly" and it returns more than 10 million results.
Given that bit.ly links are 301 redirects, why are they being indexed in Google and ranked according to their destination?
I'm working on a similar project to bit.ly and I want to make sure I don't run into the same problem.
-
Given that Chrome and most header checkers (even older ones) are processing the 301s, I don't think a minor header difference would throw off Google's crawlers. They have to handle a lot.
I suspect it's more likely that either:
(a) There was a technical problem the last time they crawled (which would be impossible to see now, if it had been fixed).
(b) Some other signal is overwhelming or negating the 301 - such as massive direct links, canonicals, social, etc. That can be hard to measure.
I don't think it's worth getting hung up on the particulars of Bit.ly's index. I suspect many of these issues are unique to them. I also expect problems will expand with scale. What works for hundreds of pages may not work for millions, and Google isn't always great at massive-scale redirects.
-
Here's something more interesting.
Bitly vs tiny.cc
I used http://web-sniffer.net/ to grab the headers of both and with bitly links, I see an HTTP Response Header of 301, followed by "Content", but with tiny.cc links I only see the header redirect.
Two links I'm testing:
Bitly response:
Content (0.11 <acronym title="KibiByte = 1024 Byte">KiB</acronym>)
<title></span>bit.ly<span class="tag"></title> <a< span="">href="https://twitter.com/KPLU">moved here</a<>
-
I was getting 301->403 on SEO Book's header checker (http://tools.seobook.com/server-header-checker/), but I'm not seeing it on some other tools. Not worth getting hung up on, since it's 1 in 70M.
-
I wonder why you're seeing a 403, I still see a 200.
http://www.wlns.com/story/24958963/police-id-adrian-woman-killed-in-us-127-crash
200: HTTP/1.1 200 OK
- Server IP Address: 192.80.13.72
- ntCoent-Length: 60250
- Content-Type: text/html; charset=utf-8
- Server: Microsoft-IIS/6.0
- WN: IIS27
- P3P: CP="CAO ADMa DEVa TAIa CONi OUR OTRi IND PHY ONL UNI COM NAV INT DEM PRE"
- X-Powered-By: ASP.NET
- X-AspNet-Version: 4.0.30319
- wn_vars: CACHE_DB
- Content-Encoding: gzip
- Content-Length: 13213
- Cache-Control: private, max-age=264
- Expires: Wed, 19 Mar 2014 21:38:36 GMT
- Date: Wed, 19 Mar 2014 21:34:12 GMT
- Connection: keep-alive
- Vary: Accept-Encoding
-
I show the second one (bit.ly/O6QkSI) redirecting to a 403.
Unfortunately, these are only anecdotes, and there's almost no way we could analyze the pattern across 70M indexed pages without a massive audit (and Bitly's cooperation). I don't see anything inherently wrong with their setup, and if you noticed that big of a jump (10M - 70M), it's definitely possible that something temporarily went wrong. In that case, it could take months for Google to clear out the index.
-
I looked at all 3 redirects and they all showed a single 301 redirect to a 200 destination for me. Do you recall which one was a 403?
Looking at my original comment in the question, last month bit.ly had 10M results and now I'm seeing 70M results, which means there was a [relatively] huge increase with indexed shortlinks.
I also see 1000+ results for "mz.cm" which doesn't seem much strange, since mz.cm is just a CNAME to the bitly platform.
I found another URL shortner which has activity, http://scr.im/ and I only saw the correct pages being indexed by Google, not the short links. I wonder if the indexing is particular to bitly and/or the IP subnet behind bitly links.
I looked at another one, bit.do, and their shortlinks are being indexed. Back to square 1.
-
One of those 301s to a 403, which is probably thwarting Google, but the other two seem like standard pages. Honestly, it's tough to do anything but speculate. It may be that so many people are linking to or sharing the short version that Google is choosing to ignore the redirect for ranking purposes (they don't honor signals as often as we like to think). It could simply be that some of them are fairly freshly created and haven't been processed correctly yet. It could be that these URLs got indexed when the target page was having problems (bad headers, down-time, etc.), and Google hasn't recrawled and refreshed those URLs.
I noticed that a lot of our "mz.cm" URLs (Moz's Bitly-powered short domain) seem to be indexed. In our case, it looks like we're chaining two 301s (because we made the domain move last year). It may be that something as small as that chain could throw off the crawlers, especially for links that aren't recrawled very often. I suspect that shortener URLs often get a big burst of activity and crawls early on (since that's the nature of social sharing) but then don't get refreshed very often.
Ultimately, on the scale of Bit.ly, a lot can happen. It may be that 70M URLs is barely a drop in the bucket for Bit.ly as well.
-
I spot checked a few and I noticed some are only single 301 redirects.
And looking at the results for site:bit.ly, some even have breadcrumbs ironically enough.
Here are a few examples
<cite class="_md">bit.ly/M5onJO</cite>
None of these should be indexed, but for some reason they are.
Presently I see 70M pages indexed for "bit.ly"
I see almost 600,000 results for "bitly.com"
-
It looks like bit.ly is chaining two 301s: the first one goes to feedproxy.google.com (FeedProxy is like AdSense for feeds, I think), and then the second 301 goes to the destination site. I suspect this intermediary may be part of the problem.
-
I wasn't sure on this one, but found this on readwrite.com.
"Bit.ly serves up links to Calais and gets back a list of the keywords and concepts that the linked-to pages are actually about. Think of it as machine-performed auto tagging with subject keywords. This structured data is much more interesting than the mere presence of search terms in a full text search."
Perhaps this structured data is submitted to Google?? Any other ideas?
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
-
Mass Removal Request from Google Index
Hi, I am trying to cleanse a news website. When this website was first made, the people that set it up copied all kinds of articles they had as a newspaper, including tests, internal communication, and drafts. This site has lots of junk, but this kind of junk was on the initial backup, aka before 1st-June-2012. So, removing all mixed content prior to that date, we can have pure articles starting June 1st, 2012! Therefore My dynamic sitemap now contains only articles with release date between 1st-June-2012 and now Any article that has release date prior to 1st-June-2012 returns a custom 404 page with "noindex" metatag, instead of the actual content of the article. The question is how I can remove from the google index all this junk as fast as possible that is not on the site anymore, but still appears in google results? I know that for individual URLs I need to request removal from this link
Intermediate & Advanced SEO | | ioannisa
https://www.google.com/webmasters/tools/removals The problem is doing this in bulk, as there are tens of thousands of URLs I want to remove. Should I put the articles back to the sitemap so the search engines crawl the sitemap and see all the 404? I believe this is very wrong. As far as I know this will cause problems because search engines will try to access non existent content that is declared as existent by the sitemap, and return errors on the webmasters tools. Should I submit a DELETED ITEMS SITEMAP using the <expires>tag? I think this is for custom search engines only, and not for the generic google search engine.
https://developers.google.com/custom-search/docs/indexing#on-demand-indexing</expires> The site unfortunatelly doesn't use any kind of "folder" hierarchy in its URLs, but instead the ugly GET params, and a kind of folder based pattern is impossible since all articles (removed junk and actual articles) are of the form:
http://www.example.com/docid=123456 So, how can I bulk remove from the google index all the junk... relatively fast?0 -
Help! The website ranks fine but one of my web pages simply won't rank on Google!!!
One of our web pages will not rank on Google. The website as a whole ranks fine except just one section...We have tested and it looks fine...Google can crawl the page no problem. There are no spurious redirects in place. The content is fine. There is no duplicate page content issue. The page has a dozen product images (photos) but the load time of the page is absolutely fine. We have the submitted the page via webmaster and its fine. It gets listed but then a few hours later disappears!!! The site has not been penalised as we get good rankings with other pages. Can anyone help? Know about this problem?
Intermediate & Advanced SEO | | CayenneRed890 -
Ranking on google but not Bing?
Any reason why I could be ranking for Google but not Bing?
Intermediate & Advanced SEO | | edward-may0 -
Proper 301 in Place but Old Site Still Indexed In Google
So i have stumbled across an interesting issue with a new SEO client. They just recently launched a new website and implemented a proper 301 redirect strategy at the page level for the new website domain. What is interesting is that the new website is now indexed in Google BUT the old website domain is also still indexed in Google? I even checked the Google Cached date and it shows the new website with a cache date of today. The redirect strategy has been in place for about 30 days. Any thoughts or suggestions on how to get the old domain un-indexed in Google and get all authority passed to the new website?
Intermediate & Advanced SEO | | kchandler0 -
Disavowin a sitewide link that has Thousands of subdomains. What do we tell Google?
Hello, I have a hosting company that partnered up with a blogger template developer that allowed users to download blog templates and have my footer links placed sitewide on their website. Sitewides i know are frowned upon and that's why i went through the rigorous Link Audit months ago and emailed every webmaster who made "WEBSITENAME.Blogspot.com" 3 times each to remove the links. I'm at a point where i have 1000 sub users left that use the domain name of "blogspot.com". I used to have 3,000! Question: When i disavow these links in Webmaster tools for Google and Bing, should i upload all 1000 subdomains of "blogspot.com" individually and show Google proof that i emailed all of them individually, or is it wise to just include just 1 domain name (www.blogspot.com) so Google sees just ONE big mistake instead of 1000. This has been on my mind for a year now and I'm open to hearing your intelligent responses.
Intermediate & Advanced SEO | | Shawn1240 -
Google Ranking Generally in Germany - Keywords & Umlauts
Hi Mozzers, I was hoping i could get some advice/opinions on a website ranking problem i have been working on, in particular one of the pages. This is our German language website which is hosted from Germany and a flaunt German speaking member of staff from our German office moderates the text content of the website for us.Our website seems to get good traffic ,visitor navigation and conversions. One of the keywords i focus building around is Schallpegelmessgerät which is one way of basically saying Sound level meter in German. The keyword uses an umlaut which i cannot use in the URL, but google is picking up and putting into the snippets, but apart from that our on-page optimization is good according to the moz tool. I have been trying to improve our content and we post many blog articles around the topic/keyword but google.de seems to choose not to even display this on the first couple of pages and sometimes ranks our blog articles around the third page. We are even been outranked by some low quality cheap online shop websites some of which with low quality content and low page and domain authorities. I had accepted this but after looking at bing.de and doing a search i find our page in the top 5 results, i understand that google and bing's algorhythms are different but just struggling to get my head around it all. Here is our website & page - http://www.cirrusresearch.de/produkte/schallpegelmessgerat/ Any advice on this situation would be greatly appreciated, thank you very much for reading this James
Intermediate & Advanced SEO | | Antony_Towle0 -
How to get content to index faster in Google.....pubsubhubbub?
I'm curious to know what tools others are using to get their content to index faster (other than html sitmap and pingomatic, twitter, etc) Would installing the wordpress pubsubhubbub plugin help even though it uses pingomatic? http://wordpress.org/extend/plugins/pubsubhubbub/
Intermediate & Advanced SEO | | webestate0 -
Google is indexing wordpress attachment pages
Hey, I have a bit of a problem/issue what is freaking me out a bit. I hope you can help me. If i do site:www.somesitename.com search in Google i see that Google is indexing my attachment pages. I want to redirect attachment URL's to parent post and stop google from indexing them. I have used different redirect plugins in hope that i can fix it myself but plugins don't work. I get a error:"too many redirects occurred trying to open www.somesitename.com/?attachment_id=1982 ". Do i need to change something in my attachment.php fail? Any idea what is causing this problem? get_header(); ?> /* Run the loop to output the attachment. * If you want to overload this in a child theme then include a file * called loop-attachment.php and that will be used instead. */ get_template_part( 'loop', 'attachment' ); ?>
Intermediate & Advanced SEO | | TauriU0