Perplexity blocks Time's AI-agent ads, calling the practice 'deceptive'
- 5 days ago
- 3 min read
Updated: 5 days ago
Perplexity has blocked ads that Time embeds in the markdown versions of pages served to AI agents, calling them deceptive — an early flashpoint over whether and how advertising should exist in the emerging 'ads for agents' layer of the web.
What happened
Perplexity blocked ads that Time had been inserting into the markdown versions of its pages served to AI agents, calling them deceptive 'regardless of labels', and warned publishers the practice could affect their trust scores. Perplexity removed the ads from its index.
It is one of the first real skirmishes over advertising to AI agents — a preview of how publishers and AI platforms will fight over monetising the agentic web.
Why this fight matters
As consumers increasingly ask AI assistants to research, compare and buy on their behalf, a new advertising surface is emerging: content served not to humans but to the agents acting for them. Nobody has agreed the rules, and this is the opening argument.
Time's logic is that if agents consume 'made for agents' pages, those pages can carry ads. Perplexity's counter is that injecting ads into machine-readable content the user never sees is deceptive by design — and it holds the distribution, so its rules win for now.
The trust-score leverage
The detail that should worry publishers is the trust-score threat. AI platforms increasingly gatekeep which sources they cite, and a low trust score means less visibility in AI answers — a serious traffic risk in an AI-search world.
That hands platforms enormous power over how publishers can monetise. It's the same tension as search and social before it, replaying on the agentic layer with even higher stakes.
Our read for marketers
For brands and publishers, the message is that agentic advertising is coming but the rulebook is unwritten and platform-controlled. Building tactics on a surface one company can switch off overnight is fragile.
The durable move is optimising for how AI agents genuinely evaluate and cite sources — earning visibility through credibility, not gaming the machine-readable layer. That's the version of 'AI SEO' likely to survive the rule-setting.
Quick FAQ
Why did Perplexity block Time's ads?
Perplexity said Time was inserting ads into the markdown versions of pages served to AI agents, which it called deceptive 'regardless of labels', and removed them from its index.
What are 'ads for agents'?
A new advertising surface where content is served to AI agents acting on a user's behalf rather than to humans directly. The rules for whether and how ads can appear there are still unwritten.
What is a publisher trust score?
AI platforms increasingly rate which sources they will cite. A low trust score means less visibility in AI answers — a real traffic risk as AI search grows.
— Dimitro Cohen, Technology & Ad-Tech Correspondent at Marketing Minute
Agentic advertising is coming but the rulebook is unwritten and platform-controlled — the durable move is earning genuine credibility that AI agents cite, not gaming the machine layer.
Is your brand building AI-search visibility on credibility, or on tactics a single platform could switch off overnight?
If you would like to know more about this topic, please contact us on danieln@merxmarketing.co.uk
Sources: Digiday, MarketingTech News, MetaTalks.
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Written by Dimitro Cohen, Technology & Ad-Tech Correspondent at Marketing Minute
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