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Justinas Kundrotas
Worked at SEM.LT, Performance Driven Agency
Attended Mykolas Romeris University
Lives in Vilnius


Justinas Kundrotas

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BREAKING: Google Penguin 4.0 (real-time) is now live and slowly rolling out in all languages!

#seo   #googlepenguin   #penguin  
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Justinas Kundrotas

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Pages that show intrusive interstitials provide a poorer experience to users than other pages where content is immediately accessible. This can be problematic on mobile devices where screens are often smaller. To improve the mobile search experience, after January 10, 2017, pages where content is not easily accessible to a user on the transition from the mobile search results may not rank as highly.

Specificaly, Google is launching a new search algorithm penalty, to demote mobile pages that have "intrusive" interstitials that get in the users way.

#seo   #googlesearch   #googlepenalty   #mobile  
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I'm very excited that I can now tell the world about the project we've been hard at work on for over a year: the next generation of Google Analytics called the Google Analytics 360 Suite!

This super charges Google Analytics which is already estimated to be installed on over half of the internet, and makes us a true enterprise class offering. The future is bright!

Our lives are filled with micro-moments: intent-rich moments when we turn to the nearest device to find a store, buy a product or look for answers to all kinds of wants and needs. In these moments, today's consumers decide what to do, where to go, and what to buy.
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GS1 have published an initial release of their Web vocabulary. The main focus of the new GS1 SmartSearch vocabulary is to be able to describe product details in richer detail and with greater precision than is possible using alone.

GS1 Web Vocabulary Standard [PDF]

GS1 SmartSearch Implementation Guideline [PDF]

The GS1 SmartSearch vocabulary is available in RDF Turtle and JSON-LD. A user-friendly tool for generating markup examples in JSON-LD format using the GS1 SmartSearch vocabulary together with should also be available within the next week or two. (src: +Mark Harrison)

#structureddata   #linkeddata  
Since our version 2.0 release, is putting increasing emphasis on extensions created through a broad network of community collaborations. Today we celebrate an important milestone in the development of this extensio...
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Great! Thank you for interesting implementation details, +Denver Prophit Jr. 
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Robots.txt: Allow / Disallow directives need to start with a slash "/"   #robotstxt   #technicalseo  
Looks like I may have found a bug in the Search Consoles robots.txt testing tool and sitemap report. +Google Webmasters +John Mueller 
Google Groups allows you to create and participate in online forums and email-based groups with a rich experience for community conversations.
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Yandex continues it's Google directed path by rolling out mobile-friendly algorithm in Russia, code name Vladivostok (which means the name of the largest city in the Russian Far East, where the share of mobile internet users is the largest compared to other regions in Russia).
Vladivostok is very similar to Google's Mobilegeddon, which was launched almost a year ago.
Much like Google’s criteria for mobile-friendly sites, Yandex looks at signals such as easy-to-click links, clear text on small screens and layouts that suit smartphones. Again, in a similar way to Google, the Russian search engine has created a mobile diagnostics page, allowing us to run any URL through the system to see if it reaches the criteria (find it in Yandex Webmaster Tools).
In overall, it means another confirmation for a well known mobile-first concept in search - all of the largest search engines around the World (Google, Bing, Yandex) prioritizing mobile going forward.


#seo   #yandex   #mobilefriendly   #mobilefirst  
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TrumpScript - a programming language based on Python but inspired by Donald Trump, created in under 24-hours at a Rice University hackathon by a team of undergraduate computer science students, not all the features are working yet. It's still short of the perfection that Donald Trump would likely seek in something that has his name on it. But like Trump, the language won't admit to its failures.

To code in TrumpScript is to write in malformed sentences consisting of only pre-approved words (all other words are stripped out) and only a small subset of logical operators afforded in other programming languages. "True" or "false" are instead "fact" or "lie," and error messages only criticize your code rather than help track down your bug. You got it ... :)

#coding   #python   #trump  
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Whether your site publishes editorial critic reviews, best-of places lists, or aggregates user ratings, from now on this content can be featured in local Knowledge Panels when users are looking for places to go.

#localseo #reviews #knowledgepanels #structureddata
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Google renamed Google App Indexing to Firebase App Indexing. The code base is the same, so you don't need to do anything new for your Apps to be included. Also, Google moved the app analytics to Firebase analytics.

More on Firebase - a unified app platform

#firebase   #appindexing   #appanalytics  
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IMPORTANT Google update on the recommendations for JS sites / Progressive Web Apps in Google Search by +John Mueller  #seo   #javascript   #progressivewebapps  
An update (March 2016) on the current state & recommendations for JavaScript sites / Progressive Web Apps [1] in Google Search. We occasionally see questions about what JS-based sites can do and still be visible in search, so here's a brief summary for today's state:

# Don't cloak to Googlebot. Use "feature detection" & "progressive enhancement" [2] techniques to make your content available to all users. Avoid redirecting to an "unsupported browser" page. Consider using a polyfill or other safe fallback where needed. The features Googlebot currently doesn't support include Service Workers, the Fetch API, Promises, and requestAnimationFrame.

# Use rel=canonical [3] when serving content from multiple URLs is required.

# Avoid the AJAX-Crawling scheme on new sites. Consider migrating old sites that use this scheme soon. Remember to remove "meta fragment" tags when migrating. Don't use a "meta fragment" tag if the "escaped fragment" URL doesn't serve fully rendered content. [4]

# Avoid using "#" in URLs (outside of "#!"). Googlebot rarely indexes URLs with "#" in them. Use "normal" URLs with path/filename/query-parameters instead, consider using the History API for navigation.

# Use Search Console's Fetch and Render tool [5] to test how Googlebot sees your pages. Note that this tool doesn't support "#!" or "#" URLs.

# Ensure that all required resources (including JavaScript files / frameworks, server responses, 3rd-party APIs, etc) aren't blocked by robots.txt. The Fetch and Render tool will list blocked resources discovered. If resources are uncontrollably blocked by robots.txt (e.g., 3rd-party APIs) or otherwise temporarily unavailable, ensure that your client-side code fails gracefully.

# Limit the number of embedded resources, in particular the number of JavaScript files and server responses required to render your page. A high number of required URLs can result in timeouts & rendering without these resources being available (e.g., some JavaScript files might not be loaded). Use reasonable HTTP caching directives.

# Google supports the use of JavaScript to provide titles, description & robots meta tags, structured data, and other meta-data. When using AMP, the AMP HTML page must be static as required by the spec, but the associated web page can be built using JS/PWA techniques. Remember to use a sitemap file with correct "lastmod" dates for signaling changes on your website.

# Finally, keep in mind that other search engines and web services accessing your content might not support JavaScript at all, or might support a different subset.

Looking at this list, none of these recommendations are completely new & limited to today -- and they'll continue to be valid for foreseeable future. Working with modern JavaScript frameworks for search can be a bit intimidating at first, but they open up some really neat possibilities to make fast & awesome sites!

I hope this was useful! Let me know if I missed anything, or if you need clarifications for any part.

[1] PWA:
[2] Progressive enhancement:
[3] rel=canonical:
[4] AJAX Crawling scheme:
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From Freebase to Wikidata: The Great Migration

This paper by Thomas Tanon, +Denny Vrandečić, +Sebastian Schaffert, +Thomas Steiner (all from Google) and +Lydia Pintscher (Wikimedia), describes the processes and tools used to effect the migration of Freebase to Wikidata, and the challenges and insights that have been encountered on the way.

"The two major collaborative knowledge bases are Wikimedia’s Wikidata and Google’s Freebase. Due to the success of Wikidata, Google decided in 2014 to offer the content of Freebase to the Wikidata community. In this paper, we report on the ongoing transfer efforts and data mapping challenges, and provide an analysis of the effort so far. We describe the Primary Sources Tool, which aims to facilitate this and future data migrations. Throughout the migration, we have gained deep insights into both Wikidata and Freebase, and share and discuss detailed statistics on both knowledge bases."

While much of this may be too technical for some, I do recommend everyone reads at least the first couple of pages, as in them one will find extremely concise and useful descriptions of Freebase, Wikidata, and the rationale for migrating from the former to the latter.

#freebase #wikidata #knowledgebases

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URL with fragment / hash (#) indexed (the power of Angular JS / HTML5 History API). Actually, I'm seeing this for the first time, but I've also already read about possible similar things happening in Google mobile results though.
BTW, relevant Google Patent:

#technicalseo   #hashtags    
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Semantic, Technical and data-driven SEO Enthusiast
For me, SEO is a multidisciplinary field where abilities and approaches may vary from case to case, it's the true art of connecting the dots and seeing the bigger picture in detail, and in many perspectives.

The How
Analytical lens always help me in making or recommending good decisions. I do not rely on best practices only, but rather bet on my own tests. When decisions are made, I can focus on details. 

I'm no programmer, but I do understand code poetry and constantly gain new skills. But my deepest fascinations are structured data and generally all things relating to technical SEO.

I'm certified in Google Analytics (GAIQ). No change is not an option! 
Also I have a law degree.

Why you should follow me?
Add me to your circles if you like posts about Search, SEO, Web Analytics, User Experience, Usability, Web development and Neuroscience.

Many posts are focused on Google, still I won't forget Yandex, Bing, other major or vertical search engines ... and fun things too!

Blog for my natives
If you can read in Lithuanian, I invite you to visit my blog where I'm talking about some of the latest news, trends and providing insights on significant patterns and touch points. But truth also is I'm just getting started there, so updates aren't that frequent.

Please do not hesitate to contact me if you need to.

Bragging rights
Lives in search every day, enjoys everlasting start-up motivation, eats structured data for breakfast, builds likeable and findable websites, reads code for fun and sometimes inspires people with great design. Pandas, Penguins, Phantoms and Hummingbirds are his best friends!
  • Mykolas Romeris University
    Law, 2000 - 2006
  • Google Analytics Academy
    Digital Analytics Fundamentals, 2013
    The course provides a foundation for marketers and analysts seeking to understand the core principles of digital analytics and to improve business performance through better digital measurement.
  • Google Analytics Academy
    Google Analytics Platform Principles, 2014
    The course dives deeper into how the GA platform collects, transforms, and organizes data in Analytics.
  • Digital Academy
    Analytics Advanced, 2014
    Skills development workshop in Google Analytics and preparation for GAIQ exam (provided by Google certified trainers).
  • Google
    Making Sense of Data, 2014
    The course is intended for anyone who wants to learn more about how to structure, visualize, manipulate data, and answer questions with Google Fusion Tables.
  • Google Analytics Academy
    Ecommerce Analytics: From Data to Decisions, 2014
    The course is designed for ecommerce businesses and users who are interested in learning how to use Google Analytics data to make informed decisions.
  • Google Analytics Academy
    Mobile App Analytics Fundamentals, 2014
    The course on how to make your app more discoverable and profitable by measuring your performance with Google Analytics.
  • Google Analytics Academy
    Google Tag Manager Fundamentals, 2015
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March 24
Other names
Justin Kundrot
Success in Search • Entity research • Keyword research • Competition analysis • A/B split and multivariate testing • Link acquiring • Link profile cleaning • Crawling budget optimization • Indexing management • Duplicate content elimination • Structured data implementation • Semantic markup • Rich snippets • Penalty prevention and recovery • User experience evaluation and improvement • Local and mobile optimization • Website speed optimization • Content marketing
  • SEM.LT, Performance Driven Agency
    SEO Specialist / Technical SEO, 2015 - 2016
  • Justinas Kundrotas
    SEO Consultant, 2011 - present
    Usually I introduce myself as a search marketer, SEO Consultant, SEO Specialist or simply as a SEO. Any of those magic titles simply means that I help people to grow their businesses by optimizing their projects for efficient visibility and perfect experience in the organic search. I'm proud to be individually qualified in Google Analytics, which is one of the many reasons why my offer relies on long-term results based on actual data and coherent testing at full scale. The White Hat perfectly suits me so I'm always happy to ensure full compliance with every single guideline by any search provider and best practice that only smart player would really follow.
    Marketing Manager, 2016 - 2016
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Justinas Kundrotas's +1's are the things they like, agree with, or want to recommend.
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Google Handwriting Input – Apps para Android no Google Play

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