Knowledge Base

August 23, 2018

Why you shouldn’t block your entire staging environment via robots.txt

It's a common practice to block entire staging environments via robot.txt - Learn about better ways to make sure your staging website doesn't get indexed.

Eoghan Henn 24

Web analytics

August 22, 2018

Cool stuff with lookup tables in Google Tag Manager

Lookup tables are one of the most useful and powerful features of Google Tag Manager when it comes to customising your Google Analytics tracking configuration. Learn what lookup tables are and how you can use them to improve your website tracking.

Eoghan Henn 99

International SEO

August 21, 2018

hreflang tags implementation guide – How to implement hreflang

The implementation of hreflang annotations can be difficult and is often done wrong. Here is how to get your hreflang annotations right.

Eoghan Henn 141

International SEO

August 20, 2018

How to use hreflang and canonical tags together

When you use hreflang as well as canonical tags on your website, you have to be careful not to send confusing signals to Google. Here's how to implement hreflang when you already have a canonical tag solution on your website.

Eoghan Henn

SEO basics

August 19, 2018

How to deal with crawl errors in Google Search Console (Webmaster Tools)

You know the problem: You open the crawl errors report of a website you've recently started working on in Google's Webmaster Tools and you see so many crawl errors that you don't know where to start.

Eoghan Henn 60

Web analytics

August 18, 2018

Monitoring and fixing 404 errors with Google Analytics

In this article, I explain how you can use two very simple custom reports in Google Analytics to monitor 404 errors on your website.

Eoghan Henn 42

International SEO

August 17, 2018

Can multiple hreflang tags point to one URL? John Mueller of Google says YES.

The correct implementation of hreflang annotations is quite a challenge for lots of webmasters, especially as Google's official documentation leaves a lot of room for interpretation. At SMX Munich 2016, John Mueller of Google shared some interesting information that is not included in Google's specifications. Read the full story here.

June 5, 2018

JavaScript SEO surprise! Google DOES use JS-injected canonical tags.

At I/O 2018, Google announced that they didn't use canonical tags that can only be found in the rendered HTML and not in the HTML source document. Our test results suggest that this statement was not true.

Eoghan Henn 35

May 7, 2018

Migrating from ccTLDs to a gTLD – The WHY, the HOW, and the WTF

This article highlights when and why it might make sense to move from a multi-ccTLD approach to a single-gTLD strategy, by looking at a case study and the SEO theory behind the topic. It also features technical advice for the migration itself and opinions from international SEO experts.

Eoghan Henn 2

December 14, 2017

More JavaScript SEO experiments with Google Tag Manager

Learn how to change title tags, meta descriptions, noindex, canonical tags and internal links with Google Tag Manager and how Google deals with these changes.

Eoghan Henn 8

August 11, 2017

How to implement hreflang with Google Tag Manager

Have you ever wondered if you can implement hreflang with Google Tag Manager? This post explains how to do it in three easy steps.

July 13, 2017

JavaScript SEO test: Does Google use pre- or post-DOM HTML for interpreting hreflang?

We wanted to know if Google uses pre- or post-DOM HTML for interpreting hreflang, so we did an experiment. See the surprising results here!

February 8, 2017

How can a website relaunch harm your SEO performance?

Most webmasters are aware of the fact that a relaunch can cause serious harm to the SEO performance of their websites. But what exactly are the dangers?

January 25, 2017

Website relaunch? How to identify important content on your old website

Are you planning a website relaunch or a site migration? Make sure you do not delete any important content that is driving organic traffic to your website.