International SEO, website migrations, SEO experiments and more

SEO data

March 5, 2023

Get more detailed Google Search Console data using the new BigQuery export

Google has just announced a game-changing feature for Google Search Console: the ability to export data directly to BigQuery. We wasted no time and activated the export feature three days ago, and in our initial analysis, we were able to uncover a wealth of additional URL and keyword data that was previously unavailable in the…

Michael Weber 0

Website migration SEO

January 3, 2023

The complete website migration SEO checklist for 2023

Based on our experience from a big number of website relaunches, we have compiled this website relaunch SEO checklist with lots of details and a free PDF version.

Michael Weber 0

International SEO

December 2, 2022

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 152

JavaScript & SEO

December 16, 2020

JavaScript Crawling Study: Rendered vs. Non-Rendered HTML

We crawled over 200 domains, including all URLs linked from their homepages and the homepages themselves, and examined the differences between the rendered and non-rendered HTML on every page. You can find a summary of the results and some detailed examples in this post. At the end of the article, you can also access the…

Michael Weber

JavaScript & SEO

December 11, 2020

Service Worker – What SEOs Need to Know

What are "service workers" and how do they work? A service worker is a Javascript process that runs in the browser background. The service worker runs in the background and acts as a kind of proxy between the website and the Internet and can intercept and manipulate network requests. Service workers have (almost) "only" influence…

Michael Weber

Website migration SEO

October 3, 2019

Testing redirects before and after a website migration

Among all of the factors you have to consider when migrating a website, your URL redirects are probably the single most important one. In this article, you will learn everything you need to know about testing your redirects before and after a website migration.

Eoghan Henn

SEO basics

May 31, 2019

Case study: 28% page speed improvement with Cloudflare HTML caching

This case study describes how we used a basic implementation of Cloudflare's HTML caching feature on an e-commerce website to improve average page load times by 28%.

Eoghan Henn

Web analytics

August 30, 2018

Understand and eliminate spam traffic in Google Analytics

In order to eliminate spam traffic from your Google Analytics account, it is important to understand how the spam traffic gets into your account in the first place. This article explains how spam traffic in Google Analytics works and discusses various solutions to tackle the problem.

Eoghan Henn

Website migration SEO

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

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

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

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

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

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.

Eoghan Henn

SEO experiments

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

Website migration SEO

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

SEO experiments

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

SEO experiments

October 26, 2017

Machine learning for SEO – How to predict rankings with machine learning

Learn how we trained a machine learning algorithm to find keywords with high ranking potential by predicting positions after on-page optimisations.

Michael Weber

SEO experiments

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.

Eoghan Henn

SEO experiments

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!

Eoghan Henn

Website migration SEO

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?

Eoghan Henn

Website migration SEO

February 1, 2017

How to make SEO a priority within your website relaunch project

If you are involved in planning a website relaunch in your organisation, this article will help you make SEO a priority in the website relaunch project.

Michael Weber

Website migration SEO

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.

Eoghan Henn

Company

January 19, 2017

Michael Weber and Eoghan Henn proudly present: searchVIU

We are happy and proud to announce searchVIU, a tool for advanced SEO analysis. Find out more about our big plans for 2017 here and be a part of our story!

Eoghan Henn

Knowledge Base