Is opensea.io legit?
This website is Mostly Safe, displaying generally strong technical security and infrastructure. However, the presence of many external scripts and hidden elements raises minor security concerns, and the lack of prominent contact information on the homepage is a transparency drawback.
Crypto average: 79/100 · based on 25 sites
Checked: April 27, 2026 at 7:59 AM UTC
Is opensea.io a scam? Here's what we found.
The security posture is robust with TLS 1.3, an HSTS header, and a content security policy. However, the high number of external scripts and hidden elements warrant a closer look, as these are sometimes associated with less trustworthy practices.
The domain is well-aged at over 8 years, registered through a known registrar, and the WHOIS data appears complete, offering good visibility into the domain's ownership.
The site holds a high Tranco rank, indicating a well-known and high-traffic presence, and is not listed on any DNS blacklists, reinforcing a positive reputation.
While the site has complete branding, legal pages, and a social media presence, the absence of clear contact information on the homepage is a notable omission for user accessibility and trust.
The presence of both a privacy policy and terms of service demonstrates good adherence to legal and user expectation for transparency regarding data handling and site usage.
The website's infrastructure is solid, featuring robust DNS resolution, comprehensive email authentication with DMARC, and a fast page load time, pointing to a well-maintained system.
Signals Detected
This is a well-known, high-traffic website
Site uses structured data identifying itself as: WebSite
Valid certificate, expires in 69 days
Certificate issued by Google Trust Services
Connection uses TLS 1.3
This business has no Trustpilot presence — not unusual for smaller or newer companies
Site maintains a proper sitemap with 5 indexed pages
robots.txt has 3 directives and references a sitemap
Resolves to: 2a06:98c1:3107::ac40:9a9f, 2a06:98c1:3104::6812:2161, 172.64.154.159, 104.18.33.97
Mail servers: aspmx.l.google.com., alt2.aspmx.l.google.com., alt1.aspmx.l.google.com., aspmx3.googlemail.com., aspmx2.googlemail.com.
Domain has DMARC email authentication configured
DNS providers: arch.ns.cloudflare.com., nicole.ns.cloudflare.com.
Excessive number of external scripts — may indicate malicious injection
Excessive hidden content found — may indicate cloaking or deceptive content
crt.sh returned status 429
Site has custom branding and social media metadata
Site enforces HTTPS via HSTS
Site has Content Security Policy configured
X-Frame-Options: DENY
Web server: cloudflare
No threats detected by Google Web Risk
Domain created 2017-12-27T22:53:42Z (8 years, 5 months ago)
Registered through Gandi SAS
Expires in 244 days
DNSSEC status from WHOIS
Website is live and responding
No obvious contact information found on homepage
Website has both privacy policy and terms of service pages
Website links to multiple social media platforms
Not found on any DNS blacklists
Could not query Wayback Machine
Fast page load
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