OA Conf Live Edition SEO Panel

1. How to analyze your
competitors' backlinks
Alex Danilin
Lead Product Manager

2. We are going to talk about ...
● Assumptions behind common backlinks metrics
● Links' distributions
● How to get good links

3. How did we get the data?
Serpstatbot/1.0 (advanced backlink tracking bot; http://serpstatbot.com/;
abuse@serpstatbot.com)

4. How did we get the data?
● http://serpstatbot.com/ - for more details on our bot
● abuse@serpstatbot.com - mail us if you would like your site to be blacklisted
The bot is very polite. If your site starts 50Xing under these conditions (~50
simultaneous users), then you have a problem.

5. Assumption 1. You can block all bots

6. Assumption 2. External backlink definition
help.remove.bg -> remove.bg
OR
play.google.com -> ads.google.com

7. Assumption 3. Indexable internet is huge
~90M domains in Google
~180M with subdomains
Platform External backlinks
Blogspot 107B
Tumblr 16B
Wordpress 4B

8. What is in non-indexable part of internet?
● casino, pharma etc.
● mirrors
● parked domains
● empty domains

9. Assumption 4. Number of backlinks and referring domains
are a good proxy for building links profile
Depends on:
● crawl depth
● sitewide links
● blogs hosting platforms
Better to use number of linking hosts.

10. These domains get ~12% of all links
● facebook.com
● twitter.com
● google.com
● instagram.com
● linkedin.com
● pinterest.com
● vk.com
● goo.gl
● tumblr.com
● yandex.ru

11. Assumption 5. Backlinks history is objective
Depends on:
● site is blocked for crawling
● date of crawling is not a date of appearance
● response code while crawling

12. A single domain was lost

13. Distributions in different topics
Essay Electronics
Avg # of ref domains 8 530 3 919
Avg # of ref links 562 865 51 986
Commercial anchors 48,85% 12,90%
Other anchors 51,15% 87,10%

14. Top domains by redirect backlinks
Full list is here
Domain # of redirects
hugedomains.com 270823
blogger.com 58687
shortener.secureserver.net 48727
en.wordpress.com 44775
survey-smiles.com 25036
facebook.com 21993
afternic.com 21591
domainmarket.com 21398
reg.ru 17981
wix.com 15780

15. Top domains by subdomains
Domain # of subdomains
tumblr.com 10345763
blogspot.com 7323721
wordpress.com 2805267
zluykrf.com 2475099
cialis-twstore.com.tw 1610569
gm9.com 1047766
teeldzj.com 924449
6-china.com 916711
appstor.io 797539
ctoqbqt.com 779513
nurusie.com 761285
sorreldifusion.com 749250

16. site:0cr18ni.com

17. What are spammy domains?
● A lot of external backlinks per page
● Spammy content
● Links to malicious websites
● Spammy external anchor list
Full list is here.

18. What follow vs nofollow (%) distribution should I use?

19. What is the min amount of pages that should receive links on
my website?
Number of target URLs vs Keywords in top100
URLs
Keywords

20. A simple approximation for the number of target URLs
Number of target pages = 0.00177 * number of keywords in top10

21. Referring domain quality estimation
https://chrome.google.com/webstore/detail/serpstat-batch-analysis/aonpihdkki
inindoogbplckpdcodnngk

22. Same tool to find quality referring pages

23. Links distribution by keywords’ volume
Correlation for referring domains = 0.01482301
Correlation for referring pages = 0.0301808
Keywords volume Referring domains Referring pages
Q1 Q2 Q3 Q1 Q2 Q3
High 2.75 24 193.25 4.75 68.5 2150
Middle, Low 1 1 2 1 1 5

24. Where can I get good links?
Top 50 free sources

25. Alex Danilin
alex_danilin
alex.danilin.m
a.danilin@serpstat.com