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Digital news to watch: Google Core Update penalises aggregator sites

In this week’s digital news, nearly 80% of top results shifted as Google’s latest update hit aggregators and boosted brands, official sites, and data-rich sources. Google is updating AI Mode in Chrome with side-by-side page viewing and a plus menu for adding tabs, images, and files as context.

Early ChatGPT ads are drawing interest but limited data and evolving features mean advertisers are still testing cautiously. Google’s new MFA requirement for the Ads API strengthens security but may require advertisers to adjust authentication workflows.

Google Core Update penalises aggregator sites

The March 2026 core update has triggered a period of unprecedented volatility, significantly surpassing the fluctuations seen in late 2025. Data reveals a massive reshuffle where nearly 80% of top-three search results changed positions, and almost a quarter of pages previously in the top ten vanished from the top 100 altogether. This update highlights a decisive move by Google to favour “destination” sources, such as official brand websites and specialised niche experts, at the expense of “intermediary” sites like job boards and directories. For SEO professionals, this represents a fundamental shift; to maintain visibility, websites must now establish themselves as the primary source of truth rather than a gateway to other information.
Read more here.

Chrome AI side-panel reduces direct website traffic

Google has introduced significant updates to the “AI Mode” within its Chrome browser that threaten to keep users away from full website experiences. The new side-by-side browsing feature on desktop means that clicking a link within the AI interface now opens the page in a side panel rather than navigating the user to the site itself. Additionally, a new “plus menu” allows users to feed documents and tabs directly into the AI for summaries. This change alters the traditional mechanics of a “click” by keeping users within the Google ecosystem, meaning SEO strategies must now focus on ensuring content is highly structured for AI parsing to ensure a brand’s message is still communicated even when a user never fully “lands” on the page.
Read more here.

Google Ads API to require multi-factor authentication

Google is tightening security across its ads ecosystem. Requiring multi-factor authentication (MFA) for API users, a move that could impact how developers and advertisers access and manage accounts.

Google will begin rolling out mandatory MFA for the Google Ads API starting April 21. With full enforcement expected over the following weeks. The update applies to users generating new OAuth 2.0 refresh tokens through standard authentication workflows.

Read more here.

Advertisers are testing ChatGPT ads, but uncertainty remains high

OpenAI’s ad push comes as it juggles multiple priorities. From AI development to enterprise growth, while facing rising competition from Google and Anthropic. Some in the industry see OpenAI as having “cast too wide a net,” experimenting across video, commerce, and other products before refocusing. Its Instant Checkout commerce feature was quietly pulled back, whilst video ambitions have also lost ground to competitors.

How ads actually show up. Early tests suggest ads may influence user journeys, but not always directly. In one example, a sponsored retailer appeared more prominently in recommendations, even when multiple options were listed. Still, platforms maintain that ads do not directly alter core answers.

Read more here.

Prioritise SEO efforts like a pro with THRICE

A prioritisation framework called THRICE extends the familiar ICE scoring model by adding Time, Headcount, and Reach alongside Impact, Confidence, and Effort. The additions address common SEO failures where teams burn political capital on initiatives that take too long, cost too much, or reach too few people. Each dimension is scored on a 1-10 scale, and the totals make trade-offs visible. A homepage title tag change might score 60/60 while a full site translation scores 26/60. Making the case for sequencing without subjective debate. The framework also builds trust with engineering teams by openly accounting for their workload before making requests.

Read more here.

Teens’ experiences on TikTok, Instagram and Snapchat

Pew Research finds that roughly 9 in 10 teens use TikTok, Instagram, and Snapchat for entertainment. Snapchat is the most messaging-heavy platform, with 57% of users messaging daily and about 30% posting daily. TikTok leads for product discovery, with about 60% of users saying they use it for product reviews. About 40% use TikTok or Instagram for news, compared with about a quarter on Snapchat. About 40% of TikTok users say it harms sleep, and about 30% say it hurts productivity. Snapchat stands out for relationships, with 44% of users saying it improves friendships. Overall, about 70% of teens across platforms report positive experiences.

Read more here.

If you need more information on any of these stories, or you’d like support on any of your digital marketing campaigns, get in touch with our team of experts by dropping us an email to team@modo25.com 

Luke Hickling - Modo25
Author
Luke Hickling
Luke Hickling - Modo25
Author
Luke Hickling
 

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