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
-
My product category pages are not being indexed on google can someone help?
My website has been indexed on google and all of its pages can be found on google except for the product category pages - which are where we want our traffic heading to, so this is a big problem for us. Our website is www.skirtinguk.com And an example of a page that isn't being indexed is https://www.skirtinguk.com/product-category/mdf-skirting-board/
Intermediate & Advanced SEO | | chelseaskirtinguk0 -
Change Google's version of Canonical link
Hi My website has millions of URLs and some of the URLs have duplicate versions. We did not set canonical all these years. Now we wanted to implement it and fix all the technical SEO issues. I wanted to consolidate and redirect all the variations of a URL to the highest pageview version and use that as the canonical because all of these variations have the same content. While doing this, I found in Google search console that Google has already selected another variation of URL as canonical and not the highest pageview version. My questions: I have millions of URLs for which I have to do 301 and set canonical. How can I find all the canonical URLs that Google has autoselected? Search Console has a daily quota of 100 or something. Is it possible to override Google's version of Canonical? Meaning, if I set a variation as Canonical and it is different than what Google has already selected, will it change overtime in Search Console? Should I just do a 301 to highest pageview variation of the URL and not set canonicals at all? This way the canonical that Google auto selected might get redirected to the highest pageview variation of the URL. Any advice or help would be greatly appreciated.
Intermediate & Advanced SEO | | SDCMarketing0 -
Can you index a Google doc?
We have updated and added completely new content to our state pages. Our old state content is sitting in a our Google drive. Can I make these public to get them indexed and provide a link back to our state pages? In theory it sounds like a great link building strategy... TIA!
Intermediate & Advanced SEO | | LindsayE1 -
Can a .ly domain rank in the United States?
Hello members. I have a question that I am seeking to confirm whether or not I am on the right track. I am interested in purchasing a .ly domain which is the ccTLD for Libya. The purpose of the .ly domain would be for branding purposes however at the same time I do not want to kill the websites ability to rank in Google.com (United States searches) because of this domain. Google does not consider .ly to be one of those generic ccTLDs like. io, .cc, .co, etc. that can rank and Bitly has also moved away from the .ly extension to a .com extension. Back in 2011 when there was unrest in Lybia, a few well known sites that utilized the .ly extension had their domains confiscated such as Letter.ly, Advers.ly and I think Bitly may have been on that list too however with the unrest behind us it is possible to purchase a .ly so being able to obtain one is not an issue. From what I can tell, I should be able to specify in Google Search Console that the website utilizing the .ly extension is a US based website. I can also do this with Google My Business and I will keep the Whois info public so the whois data can been seen as a US based website. Based on everything I just said do any of you think I will be OK if I were to register and use the .ly domain extension and still be able to rank in Google.com (US Searches). Confirmation would help me sleep better. Thanks in advance everyone and have a great day!!
Intermediate & Advanced SEO | | joemaresca0 -
How to stop URLs that include query strings from being indexed by Google
Hello Mozzers Would you use rel=canonical, robots.txt, or Google Webmaster Tools to stop the search engines indexing URLs that include query strings/parameters. Or perhaps a combination? I guess it would be a good idea to stop the search engines crawling these URLs because the content they display will tend to be duplicate content and of low value to users. I would be tempted to use a combination of canonicalization and robots.txt for every page I do not want crawled or indexed, yet perhaps Google Webmaster Tools is the best way to go / just as effective??? And I suppose some use meta robots tags too. Does Google take a position on being blocked from web pages. Thanks in advance, Luke
Intermediate & Advanced SEO | | McTaggart0 -
Malicious site pointed A-Record to my IP, Google Indexed
Hello All, I launched my site on May 1 and as it turns out, another domain was pointing it's A-Record to my IP. This site is coming up as malicious, but worst of all, it's ranking on keywords for my business objectives with my content and metadata, therefore I'm losing traffic. I've had the domain host remove the incorrect A-Record and I've submitted numerous malware reports to Google, and attempted to request removal of this site from the index. I've resubmitted my sitemap, but it seems as though this offending domain is still being indexed more thoroughly than my legitimate domain. Can anyone offer any advice? Anything would be greatly appreciated! Best regards, Doug
Intermediate & Advanced SEO | | FranGen0 -
I have a .com site but I am only ranking good on google for Canada and not the USA.
We are located in Canada but sell our products world wide. We are ranking ok on google.ca but are not in the top 50 on google.com. Is it due to my ip address? Is there any tips that you can give me to help up my rating for google.com. Any info you can provide me with will be amazing. Thanks,
Intermediate & Advanced SEO | | drewzal0 -
Getting Google to Correct a Misspelled Site Link...Help!
My company website recently got its site links in google search... WooHoo! However, when you type TECHeGO into Google Search one of the links is spelled incorrectly. Instead of 'CONversion Optimization' its 'COversion Optimization'. At first I thought there was a misspelling on that page somewhere but there is not and have come to the conclusion that Google has made a mistake. I know that I can block the page in webmaster tools (No Thanks) but how in the crap can I get them to correct the spelling when no one really knows how to get them to appear in the first place? Riddle Me That Folks! sitelink.jpg
Intermediate & Advanced SEO | | TECHeGO0