When Should You Tag External Links as nofollow?

nofolllow and dofollow linksUnderstanding Google’s algorithm for PageRank is really essential in order to rank higher on search engine results. I have already explained that PageRank is not much important compared to Alexa Rank. But if you wish to compete well on SERPS then understanding its algo is very important. The entire infrastructure or foundation of Google is mainly based on backlinks. The more backlinks your site have the more its significance increases in the eyes of Google. It is very important to keep a balance between incoming links and outgoing links. Your incoming links are the backbone of your blogs success. Incoming links are links that come from other websites to your blog. When people like your content they will mention you on their site by giving a credit link or attribution link and the more backlinks you receive the more you grow in sense of authority and trust in internet.

What are Internal and External Links?

Internal links are links pointing to any page within your site. For example If I link an old post I am actually increasing the number of my internal links. Always keep internal links as DoFollow

Never make the mistake of adding a nofollow link to any of your internal page. Increase the number of inbound links as much as you can so that search robots may enjoy crawling and indexing your pages.

External Links are links that point to other sites from you site. In other words when you link to any site on the web you are actually increasing the number of your outbound or external links. Keep external links minimum. Link other webs only when necessary.

When should you add a nofollow or dofollow Tag to external Link?

If you have observed my PageRank dropped from PR 4.0 to PR 3.0  on first Google Update but just yesterday Alhamdulillah I got back my PR. I can not claim that it took place because of the changes I made but I can assure you the steps I learnt and applied will benefit MBT in future. Its true to say that you learn from your mistakes and I have learnt a lot from some of the mistakes that I made and this is one reason why I am sharing this post today.

I was linking all major websites like Facebook and Google services blindly because somewhere I had read that linking major social networks will improve your blog’s relevance and its respect and trust will increase in the eyes of search robots because linking big sites shows that you are writing on something worth sharing and Google always makes sure to promote blogs that provide quality tutorials by discussing products availed by major web services.. But whatever I read earlier was all wrong! because I have personally experienced the pros and cons now. How? Lets first understand what exactly is PageRank and what increases or decreases its value.


In layman terms when more and more sites link to you the more your PageRank increases. PR algorithm or in other words the entire Google infrastructure is based on promoting sites that are recommended (backlinked) by other websites with good reputation. Therefore if a site has PR0 it means, that site is not well trusted and does not publish content that can entertain Google users. But if a site or blog has PR > 1 then it means, that site has now some importance in the eyes of search robots. Robots enjoy crawling PR ranked sites several times per day. MBT is Alhamdulillah crawled every single second by Search Spiders. The moment we publish a post the next moment it appears on Google search listings. This is because the more PR you have the faster your site gets crawled.

In short more backlinks you have, the better your site gets crawled and the faster your traffic grows. Furthermore you will succeed in attracting sponsors too. That’s what PR is all about.

Got PR? Now how to flow the PR Juice wisely?

After your blog receives a PR increase it does not mean that you should party out and yell and scream out of excitement rather you should know that now you need to be more careful in maintaining the PR. It takes months to build it and few days to loose the PR. PR Increases only when your incoming links grow. When more and more site link to you, your PageRank improves. Whenever you link to an internal page (Page Within your site)  or an external page (Other websites)  you are basically sharing the PR juice with those pages. If you keep on linking external pages blindly then on next PR update you will experience a PR drop because you shared your bottle of juice with others therefore your share of juice decreased. So what to do then? Follow up

Read more on PR Juice & Linking internal pages here

Which links should you tag as nofollow?

To make sure that your homepage may not loose the PR, simply add a nofollow tag to links that point to external sites. When robots crawl your content they look for links on your page and if you have tagged a link as nofollow then robots will crawl it as normal text and they will not bother looking at where the link is taking them. This prevents the PR flow to those sites tagged as nofollow. Always link mega sites and social networks as nofollow but never add a nofollow tag to any internal page. Some examples include:

  1. Facebook Profiles, Pages, Developers page etc
  2. Google Services such as Gmail, Google+, Adsense, Feedburner, Blogger, YouTube etc.
  3. Mozilla and Chrome and other browser add-on pages
  4. Microsoft, Yahoo, Google
  5. Torrent links, rapidshare links, megashare links etc etc.
  6. Demo, Download and Iframed Pages
  7. and Thousand others…

To learn how to add a nofollow tag to a link please read this post:

So which links should be tagged as dofollow?

In real terminology there is nothing such as dofollow Tag When you leave a link in its original form without adding a nofollow tag then it means that the link is dofollow. The spiders will crawl the link, index it and will count it as an external link thereby sharing your PR juice with that external page that you have linked. So which should be kept as normal? The answer is: All Internal Links/Inbound Links and niche links.

Internal links will help spiders crawl your pages more deeply and they will get indexed often. When you link to a previous relevant post, the spider will go and check where the link is taking him thus re-indexing the previous post. This improves your search listings.

Niche links can be can not be dofollow. Always give a link to a friend’s blog or to a blog that shares the same content as you do. Of course you are linking to him because you liked his content and you wish to share his content with your readers. This is also a polite thing and more importantly when that person finds that you have linked to him then may be someday he would link to you too as a thanksgiving. Most people make network friends this way.

Now lets see how Google supports whatever I shared today:

I hope this little post may help most of you in better understanding in-page and off-page link building. If you have any question you are most welcomed to post your query. Hope you utilize and maintain your PageRanks well because after all that is one proof of your hard work. Good day friends. :>

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  1. Dear Mohd.
    Excellent post.... extremely informative for bloggers like me who does not no anything and learn from friends like you and here I will not like to miss Sam also.This particular post is as unique as all other posts on your website .Thanks a ton !!!
    Allah Bless you immensely !!!
    ur sister

  2. Dear Mohd.
    I like your method of explaining any tutorial. I have read a lots about this concept but this is one of the best tutorial post. You know I spent lots of time with MBT to improve my blog. Thanks for supporting us with your hard work.

  3. @Priyanka

    You know a lot sis and its just my pleasure to have you here. It gives me great pleasure when these little tips are appreciated by pals like you. Thank you buddy. :>

    I thank you buddy for your kind remarks. All credit goes to you for trying out the tutorials and implementing them. I am sure you will reach you goal very soon with or with MBT. Thank you. :)

  4. ty Mohd!

    I have started to use Windows Live Writer after your comments about it, and once I got over the learning curve truly enjoy it.

    The Internal links truly help with my How-To Guide for the Computer Beginner. I just make sure I use the keywords that link to the concept I'm talking about. That way I don't have to explain it again.


    I started that blog for my friends after so many phone calls about computers. (giggles) I started to notice I was getting read by other sources, and now I'm starting to slowly rewrite each lesson to make sure it is optimized as you mention. WELL I also had to rewrite them because it wasn't my friends on the phone using the visuals either. I'm starting to write to the world - and not just them!

    Now I read that your table of contents widget needs to be 'no follow' due to the fact it will look spammy to google. Makes sense - link overload I would assume on one page. That technically would be the only 'no follow' internal deal at this point correct?

  5. @Hannah

    Congratulations hannah for this exciting new initiative. I am sure we all will benefit from your helpful tutorials. Well I will personally advise that you remove that table of contents widget as it is risky. Further I will stress that do not use rel nofollow for any of your internal page even if the links are too much. I remember that I said to tag TOC links as nofollow but now after reading what Google said I will take back those words. Though I would advise that you add around 50-80links at most on your TOC page and not more than that. It is safe but links greater than that would mean link spamming. Hope this helps and more power with your new blog. :>>

  6. Great post bro. . . And i think You shoud update that post To tag TOC links as nofollow. . .because many bloggers will make their TOC links nofollow after reading your post...Keeo going and Keep sharing bro. . .i have learnt a lot from your blog :)
    Have a Great Day

  7. @Govind

    You are welcomed buddy and yeh thanks for reminding I will just update that post.

  8. So, I'm a little confused as to which links I should tag nofollow. I have a new site and I have linked to a couple of sites including a couple of blogging sites, facebook, and twitter. I know you had said that I should link facebook as nofollow, but I want to be sure what other links I should tag nofollow.

    Thank You!

  9. Mohammad i am not able not comment on you blog.

  10. I never knew about this. Thanks a lot for sharing your knowledge here, I am glad to found this website..Register Domain

  11. clear explanation

  12. I am big fan of this blog..Now I understand reason behind pagerank, that why my blog got PR3 in just one month....MBT team is genius. Keep posting brother same way ahead....TC

  13. Hello Mohammad,

    Thank you for continuing to provide us with new passages in the holy grail of all things Blogger. I too have the same concerns as @Jarrett in regard to definitive 'nofollow' clarification. Are you saying it is wise to add 'nofollow' to all Adsense / Google Affiliate Network links? and the following as well?:

    1. Facebook Profiles, Pages, Developers page etc
    2. Google Services such as Gmail, Google+, Adsense, Feedburner, Blogger, YouTube etc.
    3. Mozilla and Chrome and other browser add-on pages
    4. Microsoft, Yahoo, Google
    5. Torrent links, rapidshare links, megashare links etc etc.
    6. Demo, Download and Iframed Pages

    Again, thank you very much for your time.

  14. Thank you Very much dear.......!!!!!
    It helped me alot for my http://mycircuits9.blogspot.com Electronics Tricks blog

  15. Excellent post. I love your blog and its all posts.
    My blog The world of techniques got PR 5 from 0 on this recent update. Hope the idea you shared will help me and all bloggers to maintain PRs.

  16. I own a blog at the http://www.hubberspot.com .... should i make my categories page as nofollow or dofollow ..... please share your thoughts .... and can you suggest what else affiliates program i can put besides google adsense ??.....

  17. If you are using an affiliate link (like to Amazon) is it still best to use the no follow attribute....does it still work and I would get credit if they bought something?

    Thanks! selina @ Fusemail . com

  18. i have a blog http://job2result.blogspot.in/, i write article on jobs/results etc. i want to put a question. I have noticed that for few days my blog's posts are not appearing in goole search result but some of old posts appear. can you tell me what is wrong...

  19. thank you

  20. Hi Mohammed! I'm wondering... I'm often linking to Wikipedia and I thought this was good, but I understand I should make links there nofollow, or?
    Is it better to put the links to my own related posts in the text than to add them at the bottom? Is it good to add links to the same post both in the text and at the bottom?
    At some of my posts I've put a lot of links to my own related posts... should I make them less? How many is o.k to have?
    Thanks a lot for interesting SEO information.
    Happy New Year!

  21. yes, very useful post specially for bloggers. I am new to blogger please visit my blog and give me some suggestions.


    Thank you so much

  22. Thanks for this valuable info on dofollow / nofollow links. Although I guess that regarding the matter of related links there is some contravercy, as to whether they improve your PR or not. Nestoras Papadopoulos http://www.click-for-money.com

  23. will bot crawl links in comment? if so, will it affect PR?

  24. Good explanation. I'm going to take your advice and make all of my outbound links "nofollow" on my Scrabble Online website. My websites relies on outbound links to provide content, so I can't avoid linking to other sites, but hopefully I can maintain more link juice by following your advice.

  25. Thanks a lot for a detailed description on nofollow. That was really useful.

  26. This comment has been removed by the author.

  27. Dude this is a very Fine Post :)
    I have a Question....
    You recommended in one of your previous posts to have Just 18-20 labels but i'm using 300-400 just to divide the stuff on my site... that's why i've made all the labels no-follow and made only few selected 15-16 labels do-follow manually...

    and in this post you are recommending to keep all internal links as DoFollow

    What should i do??

    Should i make do follow all the labels?

  28. Nice blog MBT team keep it up dear and i already bookmark it

  29. All external links should be nofollow?

    1. SHIRAZ AHMAD TARIQ, The admin said it na, all external links should be NOFOLLOW.

  30. I just want to take out time to thank the admin of MBT, i have been into blogging for a while now but have never had an idea of what i just read. i never knew this can have effect on my blog. With this, I'm gonna take my blog to the next level.
    Once again, thank you.

    Please help me checkout my new blog for review.

  31. Hi, This is very interesting and helpful topic for blogger like me.
    I have a blog for information site like jobs and career related site.

    so i have to compulsory add external site link in every post for detail info.
    please tell me what to add nofollow for every external links.

    Thanks & Regards

  32. Blogging is incredible and every blogger playing a great role to introduce new things in blogging. I always like to fly on different blogs and read the strategies of different blogger to understand the blogging in more depth. Being a bloggers I really appreciate your works and no doubt your blog is awesome.
    Love from Asad Niazi