Found by ChatGPT, Claude and Perplexity too.
More buyers now ask an AI assistant instead of typing a search. Yclas sites let AI search in, tell it about new listings every day, and describe each listing in a way it can read.
{
"@context": "https://schema.org",
"@type": "Product",
"name": "2021 Volkswagen Golf 1.5 TSI, grey",
"description": "2021 Golf R-Line, 24,000 miles…",
"image": ["https://…/golf_1.jpg"],
"offers": {
"@type": "Offer",
"price": "18900",
"priceCurrency": "USD",
"availability": "https://schema.org/InStock",
"seller": { "@type": "Person", "name": "Alex Morgan" }
}
}The right crawlers in. The data resellers out.
Every Yclas site writes its own robots.txt. Search engines and the assistants that read the web to answer questions are never blocked, while SEO-tool and backlink crawlers, which only sell data about your site to others, are turned away.
- Googlebot, Bingbot and Applebot, plus the search crawlers of ChatGPT, Claude and Perplexity, are never on the block list.
- Sixteen data-reselling crawlers are kept out, which also saves your site the load.
- Admin, search and sorting pages are kept out of crawls, so crawlers spend their time on your listings.
User-agent: *
Crawl-delay: 10
Disallow: /oc-panel/
Disallow: /search.html
Disallow: /publish-new.html
Disallow: /*?*sort=
User-agent: SemrushBot
User-agent: AhrefsBot
User-agent: MJ12bot
User-agent: DataForSeoBot
User-agent: DotBot
# …and 11 more
Disallow: /The robots.txt of a Yclas site, shortened.
Every listing, described in a language machines understand.
Behind every listing page sits a short description in Schema.org, the format Google, Bing and AI assistants read. When someone asks for "a grey Golf under $20,000 near Denver", the price, currency and availability are right there to quote.
- Title, description and photos
- Price, currency and whether it's still available
- The seller, and the category path as breadcrumbs
- Vehicle, property, job and event details when you switch on structured data by listing type
Search engines hear about new listings the same day.
Once a day your site sends Bing, Yandex, Seznam, Naver and Yep the addresses of listings that were added, changed, sold or removed, through IndexNow. They recrawl those pages now instead of on their next visit, and Bing's index is what ChatGPT search and Copilot use.
How it works: a diagram, not a screenshot.
Questions people ask
Will ChatGPT recommend my marketplace?
Nobody can promise that: assistants choose what to quote. What Yclas does is make sure they can reach your site, hear about new listings quickly and read each listing accurately, which is what they need to quote it at all.
Do I have to set anything up?
No. robots.txt and structured data work on every Yclas site from the day it goes live, and the daily IndexNow submission starts once the site is out of its free trial (trial sites are kept out of search engines). Structured data by listing type (vehicles, property, jobs, events) is one switch in your SEO settings.
Are AI training crawlers blocked?
They are left as they are: Yclas only turns away crawlers that resell data about your site. If you want to block one yourself, add it to your own robots.txt rules and your rule is kept.
Does Google use IndexNow?
No, Google doesn't use IndexNow. It finds new listings through your sitemap, which lists every listing with its real update date.
More of what Yclas does
See it with your own listings.
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