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
-
Index an URL without directly linking it?
Hi everyone, Here's a duplicate content challenge I'm facing: Let's assume that we sell brown, blue, white and black 'Nike Shoes model 2017'. Because of technical reasons, we really need four urls to properly show these variations on our website. We find substantial search volume on 'Nike Shoes model 2017', but none on any of the color variants. Would it be theoretically possible to show page A, B, C and D on the website and: Give each page a canonical to page X, which is the 'default' page that we want to rank in Google (a product page that has a color selector) but is not directly linked from the site Mention page X in the sitemap.xml. (And not A, B, C or D). So the 'clean' urls get indexed and the color variations do not? In other words: Is it possible to rank a page that is only discovered via sitemap and canonicals?
Intermediate & Advanced SEO | | Adriaan.Multiply0 -
Homepage meta title not indexing correctly on google
Hello everyone! We're having a spot of trouble with our website www.whichledlight.com The meta title is coming up wrong on google. In Google it currently reads out
Intermediate & Advanced SEO | | TrueluxGroup
'Which LED Light: LED Bulbs & Lamps Compared'
when it should be
'LED Bulbs & Lamps Compared | Which LED Light' Last snapshot of the page from google was yesterday (5th April 2016) Anyone got any ideas?
Is all the markup correct in the ?0 -
Removing content from Google's Indexes
Hello Mozers My client asked a very good question today. I didn't know the answer, hence this question. When you submit a 'Removing content for legal reasons report': https://support.google.com/legal/contact/lr_legalother?product=websearch will the person(s) owning the website containing this inflammatory content recieve any communication from Google? My clients have already had the offending URL removed by a court order which was sent to the offending company. However now the site has been relocated and the same content is glaring out at them (and their potential clients) with the title "Solicitors from Hell + Brand name" immediately under their SERPs entry. **I'm going to follow the advice of the forum and try to get the url removed via Googles report system as well as the reargard action of increasing my clients SERPs entries via Social + Content. ** However, I need to be able to firmly tell my clients the implications of submitting a report. They are worried that if they rock the boat this URL (with open access for reporting of complaints) will simply get more inflammatory)! By rocking the boat, I mean, Google informing the owners of this "Solicitors from Hell" site that they have been reported for "hosting defamatory" content. I'm hoping that Google wouldn't inform such a site, and that the only indicator would be an absence of visits. Is this the case or am I being too optimistic?
Intermediate & Advanced SEO | | catherine-2793880 -
How is Google crawling and indexing this directory listing?
We have three Directory Listing pages that are being indexed by Google: http://www.ccisolutions.com/StoreFront/jsp/ http://www.ccisolutions.com/StoreFront/jsp/html/ http://www.ccisolutions.com/StoreFront/jsp/pdf/ How and why is Googlebot crawling and indexing these pages? Nothing else links to them (although the /jsp.html/ and /jsp/pdf/ both link back to /jsp/). They aren't disallowed in our robots.txt file and I understand that this could be why. If we add them to our robots.txt file and disallow, will this prevent Googlebot from crawling and indexing those Directory Listing pages without prohibiting them from crawling and indexing the content that resides there which is used to populate pages on our site? Having these pages indexed in Google is causing a myriad of issues, not the least of which is duplicate content. For example, this file <tt>CCI-SALES-STAFF.HTML</tt> (which appears on this Directory Listing referenced above - http://www.ccisolutions.com/StoreFront/jsp/html/) clicks through to this Web page: http://www.ccisolutions.com/StoreFront/jsp/html/CCI-SALES-STAFF.HTML This page is indexed in Google and we don't want it to be. But so is the actual page where we intended the content contained in that file to display: http://www.ccisolutions.com/StoreFront/category/meet-our-sales-staff As you can see, this results in duplicate content problems. Is there a way to disallow Googlebot from crawling that Directory Listing page, and, provided that we have this URL in our sitemap: http://www.ccisolutions.com/StoreFront/category/meet-our-sales-staff, solve the duplicate content issue as a result? For example: Disallow: /StoreFront/jsp/ Disallow: /StoreFront/jsp/html/ Disallow: /StoreFront/jsp/pdf/ Can we do this without risking blocking Googlebot from content we do want crawled and indexed? Many thanks in advance for any and all help on this one!
Intermediate & Advanced SEO | | danatanseo0 -
"Jump to" Links in Google, how do you get them?
I have just seen yoast.com results in Google and noticed that nearly all the indexed pages show a "Jump to" link So instead of showing the full URL under the title tag, it shows these type of links yoast.com › SEO
Intermediate & Advanced SEO | | JohnPeters
yoast.com › Social Media
yoast.com › Analytics With the SEO, Social Media and Analytics all being clickable. How has he achieved this? And is it something to try and incorporate in my sites?0 -
Single, high ranking pank disappears from Google?
Hi all, The question I have concerns a high ranking page on my site that has disappeared from Google. It was in the top 5 for the target keyword and it currently ranks 3 on Bing. I recently migrated my domain (one month ago), but it seems to have gone very well. No other pages have taken a hit like this. The 301 redirect is in place and working well. I've used the Moz Tools to see if anything is weird, but it all looks fine. Oh, and yes, I did check Google Webmaster Tools - no messages and other related pages on my site are ranking on the second and third pages for the terms. Also, the site is consulting services - nothing dodgy. Any ideas? Why just this one page? What are my options? Thanks for any advice you may have. John
Intermediate & Advanced SEO | | friendlymachine0 -
Why is Google indexing either the singular or plural version of a keyword?
Hello Forum, We have just finished completely redoing a website and it seems that for several keywords either the plural or singular version is no longer being displayed in Google search results. For example, we sell yoga products, one of which is a bolster. In the SEO section of Google Analytics, the keyword "bolsters" has held a steady rank while "bolster" lost lots of rank and now no longer shows. Both keywords pointed to the same page and hold nearly equal rank, which has both keywords for "bolster" and "yoga bolster" Any idea what may be going on?
Intermediate & Advanced SEO | | pano0 -
Nofollow links in Google Webmaster
I've noticed nofollow links showing up in my Google Webmaster tools "links to your site" list. If they are nofollow why are they showing up here? Do nofollow links still count as a backlink and transfer PR and authority?
Intermediate & Advanced SEO | | NoCoGuru1