✨ Core Updates: The top 10 SEO news stories of 2025 [5 January]


SEO tips and updates from Mark Williams-Cook
Search with Candour hosted by Jack Chambers-Ward

Top 10 SEO stories of 2025


📊

New features were added to Google Search Console including query groups, social channels and AI-powered configurations. GSC continues to be an essential tool for SEOs and these additions help expand its capabilities.

❇️

AI Mode launched in May 2025 and has since expanded to over 200 countries and 35 languages. AI Mode also introduced agentic search to Google and could potentially become the primary search mode in 2026.

💯

Google removed the &num=100 parameter. While this change appeared catastrophic at first, especially for rank tracking tools, this may actually give us a more accurate picture of long-term organic visibility.

🌐

New AI-powered browsers from Perplexity and ChatGPT launched. These LLMs aren't just trying to compete in the search landscape, this growth of browser competition also raises questions about Chrome's monopoly.

🖱️

AI Overviews continued to reduce click-through rates. Across multiple studies, the presence of AIOs grew and this caused significant drops in CTR for both organic and paid results.

🤝

Google quietly confirmed that the search algorithms unintentionally favour larger sites. Google also spoke about how complex algorithm adjustments are and it can take months to implement fixes.

📈

Some of Perplexity's ranking systems were unearthed by Metehan Yesilyurt. This detailed, evidence-led analysis revealed some interesting factors including content freshness, consistency across formats and topic relevance.

📉

Google's search market share dropped below 90% for the first time since 2015. Google is still far-and-away the dominant search platform globally but these drops do feel like the other competitors slowly chipping away at their monopoly.

☁️

Cloudflare took a notable stance against AI search. Cloudflare allows users to block and even monetise AI crawlers visiting your site and Cloudflare's CEO has been very outspoken about his thoughts on the future of the internet.

🤳

Multimodal search became more important than ever thanks to Search Live. SEO is now relevant for your products and brand in the real world as more and more users searched visually in 2025 than ever before.

Sponsor: Candour

Candour is a digital agency that builds websites differently.

Moving to a new site isn’t just a design change; it’s a data change. One wrong move with your front-end code, redirects or site architecture, and you don’t just lose traffic – you lose revenue. You can wipe out years of Google trust overnight.

Candour has renowned SEO experts who work right alongside their designers and developers to help you avoid those migration pitfalls and, importantly, find new opportunities for growth that other agencies miss.

We don’t treat search as an afterthought; it’s baked in from day one.

If you want a site that ranks as good as it looks – and keeps your hard-earned traffic safe – go to withcandour.co.uk.

Most great websites don’t get found. Ours do.

Search with Candour podcast

Let's predict what will happen in SEO in 2026

Season 4: Episode 52

In the first episode of 2026, hosts Jack Chambers-Ward and Mark Williams-Cook discuss the major SEO news stories of 2025 and make predictions for the upcoming year.

They reflect on their predictions from last year, including the impact of zero-click searches on organic click-through rates, the rise of video and visual search elements, and the importance of community and real marketing.

The episode also covers Google's AI mode rollout, the challenges posed by automated advertising and privacy laws, and potential advancements in agentic search and browser-based AI.

Refer subscribers and earn rewards!

If you enjoy reading Core Updates, you can earn £1000's of free access to software and tools by referring your friends to sign up using your personal referral link.

Your referral link: [RH_REFLINK GOES HERE]


Here are the fantastic rewards on offer:

Refer 3 Subscribers:
Get tagged in a LinkedIn post to thank you for your support

Refer 10 Subscribers:
Get included in a Core Updates email as a supporter

Refer 25 Subscribers:
Get 1 month free subscription to Liam Fallen’s MostlyMarketing Slack

Refer 50 Subscribers:
Get 1 month free AlsoAsked Lite subscription

Refer 75 Subscribers:
Get a free copy Majestic’s SEO in 2025 book (20 to give)

Refer 100 Subscribers:
Get 3 months free InLinks Freelancer subscription

Refer 150 Subscribers
Get free access to Kyle McGregor’s Google Analytics 4 course

Refer 200 Subscribers:
Get free access to Mark Williams-Cook’s Complete SEO course

Refer 250 Subscribers:
Get 1 year free subscription to Sitebulb Pro

Refer 300 Subscribers:
Get free access to Mark Rofe’s Digital PR Course

Refer 404 Subscribers:
Get 1 year free subscription to Little Warden Small team

Refer 500 Subscribers:
Get 1 year free AlsoAsked Pro subscription

Your referral link:

[RH_REFLINK GOES HERE]

Facebook Twitter Whatsapp Telegram Linkedin Email

PS: You have referred [RH_TOTREF GOES HERE] people so far

See how many referrals you have

Top Core Updates referrer leaderboard

A big thank you to our top referrers, who have signed up over 10 people to the Core Updates newsletter, go follow them!

🥇 MJ Cachón Yáñez (LinkedIn / Bluesky)

🏅 Nikki Pilkington (LinkedIn / Bluesky)

🏅 Lidia Infante (LinkedIn / Bluesky)

🏅 Saijo George (LinkedIn / Bluesky)

🏅Alice Rowan (LinkedIn)

🏅Martijn Jeurissen (LinkedIn)

🏅Chester Beard (LinkedIn)

Candour, 30-34 Muspole Street, Norwich, Norfolk NR31DJ
Unsubscribe · Preferences

Core Updates SEO Newsletter

The Core Updates newsletter is written by Mark Williams-Cook, a veteran SEO who is Digital Marketing Director at Candour, Founder of AlsoAsked and organiser of SearchNorwich. Over 40,000 SEOs follow Mark's 'Unsolicited #SEO tips' on LinkedIn, which has now been wrapped up into the Core Updates newsletter, along with an overview of weekly news and the current episode of the Search with Candour episode, hosted by Jack Chambers-Ward.

Read more from Core Updates SEO Newsletter

SEO tips and updates from Mark Williams-CookSearch with Candour hosted by Jack Chambers-Ward SEO updates you need to know 👨⚖️ Google sues SerpApi over unlawful scraping of search results. Google accuse SerpApi of using tactics like cloaking and dynamic crawler names to escape security measures and reselling the scraped content to users. 🤑 8 million users' AI conversations sold by Chrome extensions. These extensions harvested AI conversations via script injections and sold user data, despite...

SEO tips and updates from Mark Williams-CookSearch with Candour hosted by Jack Chambers-Ward SEO updates you need to know ⚠️ Google's December 2025 core update begins rolling out. As is tradition, Google announces their latest core update just in time for Christmas. The rollout began on 11th December 2025 and may take up to 3 weeks to complete. 📊 Google introduces social channels in Google Search Console. This allows users to find clicks, impressions and trending data in the GSC Insights...

SEO tips and updates from Mark Williams-CookSearch with Candour hosted by Jack Chambers-Ward SEO updates you need to know 📊 Google Search Console adds an AI-powered configuration to Performance report. This feature allows users to create filters and comparisons using natural language. LLMs may hallucinate so don't blindly trust these insights! 🌐 Google's Year in Search shares the most searched terms of 2025. Top global searches include AI tools such as Gemini and DeepSeek and the AI-generated...