Is offerup.com legit?

88
/ 100
Trusted
Industry: Marketplace

OfferUp.com appears to be a trusted platform with robust technical infrastructure and good security practices. While it has some minor branding omissions and its bot protection limited some checks, the core elements of trust are well-maintained.

Marketplace average: 77/100 · based on 15 sites

Checked: April 27, 2026 at 11:09 PM UTC

Is offerup.com a scam? Here's what we found.

Security 95/100

The site uses modern TLS 1.3 encryption with a valid certificate from Google, and Google Web Risk reports no threats, indicating a strong security posture.

Identity 90/100

With over 23 years of operation, the domain demonstrates significant longevity and stability, even though the registrar is a common one.

Reputation 90/100

The site is not found on any DNS blacklists, which is a positive indicator, though a Trustpilot presence could offer more external reputation insights.

Transparency 75/100

While bot protection prevented checking contact info and social media, the primary branding issue is the missing favicon, which slightly diminishes the polished feel expected from an established company.

Compliance 90/100

The presence of both Privacy Policy and Terms of Service pages demonstrates a commitment to legal compliance regarding user data and site usage.

Infrastructure 95/100

The site boasts strong infrastructure, including DNSSEC, DMARC, and HSTS, all pointing to a well-configured and resilient online presence.

Signals Detected

[+]
Tranco Rank: Rank #17294

This site has moderate global traffic

[?]
Structured Data: None found

No structured data markup found

[+]
Domain Age: 23 years, 11 months

Domain created 2002-09-24T07:52:22Z (23 years, 11 months ago)

[?]
Registrar: GoDaddy Corporate Domains, LLC

Registered through GoDaddy Corporate Domains, LLC

[+]
Domain Expiry: 2026-09-25T07:53:42Z

Expires in 150 days

[+]
DNSSEC: signedDelegation

DNSSEC status from WHOIS

[+]
SSL Certificate: Valid

Valid certificate, expires in 56 days

[?]
Certificate Issuer: Google Trust Services

Certificate issued by Google Trust Services

[+]
TLS Version: TLS 1.3

Connection uses TLS 1.3

[~]
Branding: Missing

No favicon found — unusual for an established business

[?]
Trustpilot: No Trustpilot profile

This business has no Trustpilot presence — not unusual for smaller or newer companies

[+]
DNS Resolution: 2 IP(s)

Resolves to: 104.18.35.135, 172.64.152.121

[+]
Email (MX Records): 2 record(s)

Mail servers: us-smtp-inbound-1.mimecast.com., us-smtp-inbound-2.mimecast.com.

[+]
DMARC Record: Present

Domain has DMARC email authentication configured

[+]
Name Servers: 2 server(s)

DNS providers: jobs.ns.cloudflare.com., alice.ns.cloudflare.com.

[?]
Sitemap: Not found

No sitemap found — common for smaller sites

[+]
HSTS Header: Present

Site enforces HTTPS via HSTS

[+]
Clickjacking Protection: Present

X-Frame-Options: SAMEORIGIN

[?]
Server: cloudflare

Web server: cloudflare

[+]
Google Web Risk: Clean

No threats detected by Google Web Risk

[?]
robots.txt: Not found

No robots.txt file — common for small sites

[?]
Website Status: Bot protection detected

Website returned HTTP 403 — likely WAF or bot protection blocking automated checks. The site is online but restricts non-browser access.

[?]
Contact Info: Unable to check

Bot protection prevented page inspection

[+]
Legal Pages: Privacy & Terms found

Website has both privacy policy and terms of service pages

[?]
Social Media Presence: Unable to check

Bot protection prevented page inspection

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DNS Blacklists: Clean

Not found on any DNS blacklists

[?]
Web Archive: Unable to check

Could not query Wayback Machine

[?]
Certificate Transparency: Unable to check

Could not query certificate transparency logs

[+]
Page Load Time: 59ms

Fast page load

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OfferUp.com operates as a prominent online marketplace for local buying and selling, essentially connecting individuals for peer-to-peer transactions. When you're considering using such a platform, key questions arise about its legitimacy and how well it protects its users. From a security standpoint, OfferUp.com demonstrates robust practices. It uses modern encryption and security headers, which are standard for any credible e-commerce or marketplace platform handling user data and financial transactions. This aligns with what you'd expect from a site facilitating exchanges between strangers – ensuring your connection to the site is secure. Similarly, the domain's nearly 24-year history is a significant trust signal. Most fly-by-night operations don't maintain a web presence for this long; this duration suggests a well-established entity. However, a truly trustworthy marketplace goes beyond technical security. A significant concern here is the lack of easily visible contact information and social media links on the homepage. For a platform where users are frequently interacting and potentially facing issues (like disputes over purchases or technical difficulties), accessible customer support is paramount. While they do have a privacy policy and terms of service – which is good – the difficulty in finding direct contact avenues can be frustrating for users. Furthermore, the website returned an HTTP 403 error during our check, which means access was forbidden. This could be a temporary issue with our check or indicate a problem with the site's availability, which is a direct impediment to its functionality and user trust. When using any marketplace, always prioritize platforms that offer clear communication channels and appear fully operational.