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Case study. LIKAR.INFO. Dramatic 40% SEO decrease

Oct 29, 2018
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Case study.  LIKAR.INFO.  Dramatic 40% SEO decrease

How we identified the reasons for decrease and how we improved the situation


  1. A medical portal
  2. 700K pages
  3. 2.7 mln. monthly visits

The challenge was to find out the exact reasons of dramatic 40% SEO decrease:


  1. Crawling of the whole website
  2. Gathering of log files for 30 days
  3. Log file analysis
  4. Crawling and logs data superimposition


  1. We’ve detected a great amount of duplicate content.
  2. Also we’ve found a huge problem with Googlebot crawling. 30-35% of crawling budget was wasted on 2 URLs just because of broken pages.
  3. A lot of pages with GET-parameters were crawled by bot and with the help of JetOctopus we found them.
  4. Out of logs analysis we identified and cleaned a lot of trash pages which led to SEO decrease.



It’s too early to talk about concrete results, but I’m sure that changes will be fruitful soon.

Desktop tools are further behind in speed, usability, uploaded services than JetOctopus.

At present, JetOctopus is the unique crawler that could scan all webpages really fast. Usability of reports, it’s really easy to work with crawling results.

Reports are formed really fast, a variety of useful options. I will definitely recommend JetOctopus to my SEO friends.

I give JetOctopus 9 out of 10 because I’m sure you can make your tool even more better, but now your crawler is cool.

Get more useful info:Case study. Preply.com. 7% increase of indexability.


Serge Bezborodov is a CTO of JetOctopus. He is a professional programmer with 9+ years of experience. He has worked with aggregators for 5 years - vacancies, real estate, cars. Also, he has experience in design DB architecture and query optimization. Serge has crawled more than 160 mln pages, 40 TB of data with JetOctopus.

Watch the recording of webinar about Log files analysis

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Auto classified, 20m pages crawled
What problem was your SEO department working at when you decided to try our crawler?
We needed to detect all possible errors in no time because Google Search Console shows only 1000 results per day.

What problems did you find
That’s quite a broad question. We managed to detect old, unsupported pages and errors related to them. We also found a large number of duplicated pages and pages with 404 response code.

How quickly did you implement the required changes after the crawl?
We are still implementing them because the website is large and there are lots of errors on it. There are currently 4 teams working on the website. In view of this fact we have to assign each particular error to each particular team and draw up individual statements of work.

And what were they?
It’s quite difficult to measure results right now because we constantly work on the website and make changes. But a higher scan frequency by bots would mean the changes are productive. However, around one and a half months ago we enabled to index all the paginated pages and this has already affected our statistics.

Having seen the crawl report, what was the most surprising thing you found? (Were there errors you’d never thought you’d find?)
I was surprised to find so many old, unsupported pages which are out of the website’s structure. There were also a large number of 404 pages. We are really glad we’ve managed to get a breakdown of the website subdirectories. Thus we’ve made a decision which team we will start working with in the beginning.

You have worked with different crawlers. Can you compare JetOctopus with the others and assess it?
Every crawler looks for errors and finds them. The main point is the balance between the scanned pages and the price. JetOctopus is one of the most affordable crawlers.

Would you recommend JetOctopus to your friends?
We’re going to use it within our company from time to time. I would recommend the crawler to my friends if they were SEO optimizers.

Your suggestions for JetOctopus.
To refine the web version ASAP. There are a few things we were missing badly:
Thank you very much for such a detailed analysis. Currently we have been reflecting on a redirects' problem.
Do you wan’t
more SEO traffic?
All sites have technical errors which block your SEO traffic boost
I’ts an axiom
Find out the most epic errors ot your site and start fixing them
The amount of the provided information is quite enough and you can see at once where and what the problems are