When you come across a domain like 11793670.fls.doubleclick.net, it's easy to wonder if it's safe. The short answer is yes: it's a subdomain of doubleclick.net, which is owned by Google and used for serving ads and tracking. The page you land on returns a 404 error, but that's because the specific path isn't active — not because the domain is malicious. There are no warning signs from blacklists or Google Web Risk, and the SSL certificate is valid. For an advertising infrastructure endpoint, missing contact info and legal pages are completely normal; this isn't a store or a service you interact with directly. So if you've seen this domain in your browser's network requests or in a link, you can treat it as a standard part of Google's ad system. There's no evidence that 11793670.fls.doubleclick.net is a scam or fake, and no reason to be concerned.
In plain English
This is a Google ad-serving subdomain, not a consumer website. It's a legitimate part of Google's advertising infrastructure, and there's nothing to worry about. The 404 error just means the specific URL path isn't active, but the domain itself is owned and operated by a trusted company.
Where the score comes from
The site uses a valid SSL certificate from Google Trust Services and supports modern TLS 1.3, which is standard for a Google-owned server. The acceptance of deprecated TLS 1.0/1.1 is a minor concern, but it doesn't pose a real risk for an ad-serving endpoint that doesn't handle user data directly.
This is a subdomain of doubleclick.net, which is owned by Google. The lack of WHOIS data for the subdomain is completely normal, and the parent domain is one of the most recognized and trusted companies on the internet. There's no ambiguity about who operates this server.
The domain is not on any blacklists, and Google Web Risk reports no threats. The absence of Wayback Machine snapshots is expected for a backend ad server, not a public-facing website. The Tranco rank is irrelevant for this type of endpoint.
The site has no about page, contact info, or social media presence, but that's standard for a technical ad-serving infrastructure. It's not meant to be a consumer-facing business, so openness isn't expected. The parent company Google is already highly transparent.
Missing privacy policy and terms of service are normal for a backend server that doesn't interact with users directly. Google's own privacy policies apply to the broader doubleclick.net domain, so there's no legal gap here.
The server is hosted on Google's own ASN with fast response times and valid DNS resolution. The lack of DNSSEC and email handling is typical for a non-interactive endpoint. The server software (cafe) is a lightweight Google internal server, which is fine.
What we checked
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