This is the presentation Tomek Rudzki presented at TechSEO Boost on December 5, 2019. The research presented here won Tomek the TechSEO Boost Research Award.

1. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost

2. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
Hello!
My name is Tomek and my research is quite
geeky... but it affects everyone - SEOs,
developers and business owners.
During the last couple of months, I have been
analyzing the most popular ecommerce
websites in the USA. And it turned out that
80% of them use JavaScript to
generate crucial content. The question
isn’t whether you have a JavaScript website.
The question is:
Is JavaScript stopping your
content from being indexed?

3. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
indexing JavaScript content
is never guaranteed!
My research concluded that
H&M, Sephora, Medium - all these websites
suffer from it. Below are the percentages of
unindexed JavaScript content:
25% 55% 50%
Let’s look at the story of Yoox.com. They are
a popular online brand similar to H&M with 14
million visitors every month. The problem with
Yoox is that 75% of their product pages
are unindexed because of JavaScript.

4. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
You might remember Google claiming that they
are fine with indexing JavaScript websites in
2014. It’s almost 2020 and businesses
are still losing a lot of money
because of this very issue. For years, people were neglecting JavaScript
SEO believing it doesn’t affect them: “It’s not for
me”, “I don’t have a JavaScript website”,“Google
is perfectly fine with rendering JavaScript”. Well,
you may suffer from JavaScript indexing issues
even if you have a Wordpress website.
If you use JavaScript to generate content, links
to similar products, comments - you have a
JavaScript website.

5. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
Based on my research, we built a tool that
shows how Google indexes JavaScript content.
It’s called TGIF – The Google
Indexing Forecast.
You can also use our toolset Onely.com/Tools
to see exactly which parts of your page are
generated by JavaScript. These tools are free
and my continued research means more are
coming.

6. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
My research shows two things:
You are using
a JavaScript website1
The chances are
your content
is not indexed2
These two facts alone change how we
should look at technical SEO in 2020.

7. Tomek Rudzki | @TomekRudzki | #TechSEOBoostTomek Rudzki | @TomekRudzki | #TechSEOBoost
Thank you!
tomek@onely.com