cdnsurvey.sogolytics.com is a subdomain used by Sogolytics, a well-known survey software company. If you've been sent a survey link pointing here, you're likely dealing with a legitimate platform. The site has strong security: modern encryption, Cloudflare infrastructure, and protections against clickjacking and other attacks. It's also not on any blacklists and has been around for at least two years based on web archives.
That said, the subdomain itself is bare-bones. There's no about page, no contact form, and the robots.txt file blocks all search engine crawlers. That's actually typical for survey subdomains — they're not meant to be public websites. But it does mean you need to be sure the link came from a trusted source. If you received an unexpected email with a link to this subdomain, check the sender before clicking. The platform itself is reputable, but any survey could be a phishing attempt if the invitation is suspicious.
When considering whether cdnsurvey.sogolytics.com is a scam or fake, the evidence points to a legitimate business. Just use the same caution you would with any online survey: don't enter sensitive information like payment details or passwords unless you're certain of the survey's origin.