Since 2003 our blog been the central library for SEO news, professional data analysis and expert opinion on the current trends in the platform economy.
AI Overviews Climb. E-commerce Sites Now Exposed. (UK Data.)
In the last 100 days the percentage of Visibility Index keywords (1 million) having an AI Overview has risen to over 80%. While the growth in the UK over 2026 has been steady, an increased rate of change was seen in ecommerce domains.
November 2026 Core Update: Radar, Visibility Analysis
The November 2026 Core Update was announced on 10th November 2026. It is currently rolling out and is expected to take up to two weeks. A with the March Core Update, it comes in the wake of high movements in SERPs. Data, analysis, and rankings of the affected domains are […]
What changed in ChatGPT in October: GPT-6, UTM tracking and sources
A lot changed in ChatGPT in October, most of it in a single night. Three of these changes matter for visibility in ChatGPT and for web analytics.
Measuring AI visibility: why breadth beats repetition
Ask ChatGPT the same question today and tomorrow, and you will often get two different answers. Sometimes your brand is mentioned, sometimes it isn’t. So can AI visibility be measured at all?
Citation Worthiness: Which GEO Tactics Hold Up Across 96,418 URLs
Which pages get cited by ChatGPT, Google’s AI Mode and AI Overviews, and what do they have in common? We analysed 96,418 URLs and checked which GEO recommendations hold up against a large dataset.
The Best of – SISTRIX Blog
These articles from the last year are exceptional. They helped people, nurtured discussion and spurred thoughts. Here’s our hand-picked selection of the best of SISTRIX Blog.
New Data Studies
(5 articles)The Top ‘non-profit’ Domains in UK Search – EEAT and Visibility to Learn From
Core Web Vitals – Wix vs. WordPress, Shopify vs. Shopware – What’s fastest?
Why (almost) everything you knew about Google CTR is no longer valid
After Schema.org Change: Search Results with Ratings Drop by 13%
The Page Speed Ranking Factor. What, exactly, is fast?
Popular Case Studies
(3 articles)Search Visibility – A Walk Down The Digital High Street
How HomeToGo aligned with SEO to create visibility
You have to know the past to understand the present – Case Study Patient.co.uk
Best Expert Opinion
(4 articles)An appeal for more science in SEO
SEO 2020: Google becomes your competitor
Love your website: A case for more independence
Only fools will ignore link building
Important Google announcements
(4 articles)Google Confirms that Core Web Vitals will be a Ranking Factor from May 2021
Core Web Vitals – Google’s Benchmark for Page Experience
Google Switching Fully to Mobile-First Indexing
Google introduces new link attributes: Sponsored and UGC
Latest IndexWatch Analysis
(1 articles)The Top ‘non-profit’ Domains in UK Search – EEAT and Visibility to Learn From
New Toolbox features
(5 articles)From AI to API: the New Functions in SISTRIX from the First Quarter of 2025
Successfully Combining User Intention and SERP Features
Introducing the Free Keyword Research Tool
New – The Influencer Search Engine from SISTRIX, Available Now
The Next Generation of SERP Analysis