What leboncoin.fr was observed using to filter automated traffic, and what IP class legitimate large-scale data collection tends to require. Reviewed July 2026.
Determined from public HTTP response signatures (cookies, headers and challenge assets), reviewed July 2026. Providers change their stack over time - verify current behavior yourself. This is read-only technical reference, not a bypass guide.
Enterprise bot management that scores IP reputation and browser signals before the page renders. Datacenter IPs are blocked wholesale and pooled residential ranges are increasingly pre-flagged.
Real mobile-carrier (4G/5G) IPs are the most durable class here, because carrier CGNAT is shared with millions of legitimate phone users and cannot be blocklisted wholesale.
Classifieds: Classifieds sites block unfamiliar IP ranges aggressively, the category has a long litigation history against automated access, and per-country sites expect local-looking traffic. Legitimate listing research calls for geo-local mobile or residential exits, modest volumes, and strict attention to terms and applicable law.
DataDome is an enterprise bot and online-fraud protection platform that sits inline in front of websites, mobile apps, and APIs, evaluating every request in real time at the edge. It deploys as modules or integrations at the CDN, web server, or application layer, plus SDKs for native mobile apps, and returns an allow, challenge, or block decision within milliseconds. It is especially common on European e-commerce, classifieds, and marketplace properties - in our registry it appears on sites such as Leboncoin, Allegro, Etsy, Idealista, and Fnac.
Full DataDome referenceResponsible use. This page describes the defense that exists, not how to defeat it. Always respect Leboncoin's robots.txt, Terms of Service and applicable law, and collect only data you are permitted to. We do not provide site-specific bypass instructions.
Data Works is our done-for-you web-data service: you send the URLs and fields, we run the collection on real 4G/5G carrier IPs and deliver clean, QA-checked CSV / JSON / API data. Prefer to run it yourself? The same carrier IPs are self-serve from $4/GB.
Yes. As of July 2026, leboncoin.fr was observed running DataDome. Enterprise bot management that scores IP reputation and browser signals before the page renders. Datacenter IPs are blocked wholesale and pooled residential ranges are increasingly pre-flagged.
Real mobile-carrier (4G/5G) IPs are the most durable class here, because carrier CGNAT is shared with millions of legitimate phone users and cannot be blocklisted wholesale. Whatever you use, respect Leboncoin's robots.txt and Terms of Service and collect only what you are permitted to.
Your browser runs from a home or mobile IP with clean reputation; a scraper on a datacenter or heavily-reused IP is scored and blocked before the page renders. Same request, different IP verdict.
Sometimes on lighter targets. Against enterprise bot management, pooled residential ranges are increasingly pre-flagged because the same IPs are resold to many users. Real mobile-carrier IPs are the more durable class because carrier CGNAT is shared with millions of legitimate phone users.