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
-
Rank Without any back linking ?
Hello, I am thinking , I will rank my site without SEO . I will add quality content on my site . Will not do any backlinking ! Can anyone suggest me if it is really possible. I know some guys or some websites those are ranked without any SEO attempts. Thanks
Intermediate & Advanced SEO | | businessowner0 -
Https & http urls in Google Index
Hi everyone, this question is a two parter: I am now working for a large website - over 500k monthly organic traffic. The site currently has both http and https urls in Google's index. The website has not formally converted to https. The https began with an error and has evolved unchecked over time. Both versions of the site (http & https) are registered in webmaster tools so I can clearly track and see that as time passes http indexation is decreasing and https has been increasing. The ratio is at about 3:1 in favor of https at this time. Traffic over the last year has slowly dipped, however, over the last two months there has been a steady decline in overall visits registered through analytics. No single page appears to be the culprit, this decline is occurring across most pages of the website, pages which traditionally draw heavy traffic - including the home page. Considering that Google is giving priority to https pages, could it be possible that the split is having a negative impact on traffic as rankings sway? Additionally, mobile activity for the site has steadily increased both from a traffic and a conversion standpoint. However that traffic has also dipped significantly over the last two months. Looking at Google's mobile usability error's page I see a significant number of errors (over 1k). I know Google has been testing and changing mobile ranking factors, is it safe to posit that this could be having an impact on mobile traffic? The traffic declines are 9-10% MOM. Thank you. ~Geo
Intermediate & Advanced SEO | | Geosem0 -
Ranking Google News - 3 digits in URL?
Do we need to have unique 3 digits in URL, like stated here in technical guidelines from Google -- https://support.google.com/news/publisher/answer/40787?hl=en&ref_topic=4359866. Or, is having and submitting Google News XML Sitemap a way around that -- https://support.google.com/news/publisher/answer/68323?hl=en
Intermediate & Advanced SEO | | bonnierSEO0 -
Not ranking in Google - why???
This will be a bit long, so please bare with me. I have a client in the auto parts industry who wants to rank their homepage for 13 different keywords. We are ranked first page for all keywords in Yahoo! Mexico and Bing Mexico, but not ranking first page at all in Google Mexico. My client's competitor, however, is clearly outranking my client in Google. When comparing both pages, my client's, while not 100% optimized, looks better optimized than their competitor's. Looking at all metrics using Moz, SEMRush, ahrefs, etc... my client's site looks MUCH better on all fronts. I know ranking a single homepage for more than 10 keywords is a difficult task. Our competitor is however, ranking for them, so it's not impossible. The keywords are not even that competitive according to Moz's analysis. I decided to create an optimized page for each keyword to try to rank these pages, but still my client wants the homepage to rank (again, if the competitor is ranking, then it's possible to do this) and I am afraid these pages I created could result in keyword cannibalization ultimately affecting the homepage's possibility to rank. My client had a previous SEO agency working for them and basically all they did was create fake blogs and have lots of keyword rich links directed to the site's homepage. I got the complete link profile from several tools and submitted a disavow requests for as many fishy links I could find, but that hasn't shown any results so far. Note: when looking at the competitor link profile, they have basically just a few links and no external links of real value whatsoever. My client is obviously very frustrated, and so am I. In my SEO experience, it shouldn't be such a difficult task to accomplish, however nothing seems to work even though everything seems to point that my client should rank higher. So now I'm running out of ideas regarding what to do with this site. Any insight you could provide would be SO helpful to me and my client. If needed I can provide my client's homepage URL and also their competitors homepage for you to review. i can also give you any extra information you need. Thanks a lot!
Intermediate & Advanced SEO | | EduardoRuiz0 -
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 -
Has this new Dmoz link put my rankings at risk?
About 7 months ago, I applied for a link at Dmoz. This week, the link got approved. The only problem is that it seems there are hundreds of link directories that scrape Dmoz. Open Site Explorer is now showing about 130 new links to my site that are essentially Dmoz scrapper sites. Do you think Google will mistaken this as me buying directory links?
Intermediate & Advanced SEO | | JenniferDacosta0 -
Site Indexed by Google but not Bing or Yahoo
Hi, I have a site that is indexed (and ranking very well) in Google, but when I do a "site:www.domain.com" search in Bing and Yahoo it is not showing up. The team that purchased the domain a while back has no idea if it was indexed by Bing or Yahoo at the time of purchase. Just wondering if there is anything that might be preventing it from being indexed? Also, Im going to submit an index request, are there any other things I can do to get it picked up?
Intermediate & Advanced SEO | | dbfrench0 -
Is it possible to get a list of pages indexed in Google?
Is there a tool that will give me a list of pages on my site that are indexed in Google?
Intermediate & Advanced SEO | | rise10