Domain Due Diligence
Report for Kbb.com
Why we think so
KBB.com (Kelley Blue Book) is an established automotive information site with very high US traffic (~18M monthly visits) and a long-standing trademark. The domain uses enterprise-grade infrastructure (Akamai CDN/DNS, valid DigiCert TLS) and shows no Google Safe Browsing or crypto-blacklist hits. That said, there are recurring consumer complaints about KBB’s Instant Cash Offer process and multiple documented scams that impersonate KBB’s branding; those impostor sites have caused real financial loss to some users. Overall the official kbb.com domain appears legitimate, but exercise caution when sharing personal or payment details and always verify you’re on the real site (look for https://kbb.com and the DigiCert certificate). 🛡️
Risk Insights
Impersonation scams targeting KBB users
Contradictory Signals
The official site shows enterprise-grade evidence of legitimacy, while some service flows (instant offers) and external impostors have created real user risk — the problem is operational/third-party, not domain authenticity.
Signal A: Strong legal and technical signals (USPTO registration, Akamai CDN, valid TLS)
Signal B: Consumer reports of misleading Instant Cash Offers and third-party impersonation scams
Category Scores
Red Flags & Warnings
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Multiple consumer complaints (BBB and forums) about Instant Cash Offer values being reduced at dealership — may cause perceived financial loss.
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Documented impersonation scams using KBB branding and fake escrow flows have caused real losses to victims; these are external criminal actors, not the official site.
🔎 Detailed Checks & Analysis
Domain & ownership (WHOIS, registrar)
Domain & ownership (WHOIS, registrar)
"WHOIS shows CSC Corporate Domains as registrar and UltraDNS name servers; no obvious privacy redaction and DNS TXT entries include legitimate verification tokens."
Reason: Registrar is a corporate registrar (CSC) and DNS records point to stable enterprise name servers, consistent with corporate control.
Brand & trademark
Brand & trademark
"Trademark registration (serial 85345472 / reg 4098630) shows first use in commerce in 2008 and active post-registration maintenance events."
Reason: USPTO lists a live registration for KBB.COM owned by Kelley Blue Book Co., Inc., supporting legal ownership of the brand.
Traffic & reputation signals
Traffic & reputation signals
"Similar sites and top keywords align with Kelley Blue Book brand; presence in news and awards (Consumer Choice Awards) further supports reputation."
Reason: High monthly visits (~18M) and healthy engagement metrics indicate a large legitimate audience.
Blacklists & phishing warnings
Blacklists & phishing warnings
"Google Safe Browsing returned no matched threats and crypto scam check was negative, indicating no active platform-level blacklist flags."
Reason: No Safe Browsing matches and crypto-scam scanner returned negative for the domain.
Consumer complaints & fraud reports
Consumer complaints & fraud reports
"BBB and other consumer complaint records document disputes where online quotes did not match dealer offers; KBB also published warnings about third-party scam sites."
Reason: There are multiple consumer complaints about discrepancies in Instant Cash Offers and external reports of impersonation scams.
Your Next Steps
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1Verify you are on the real site: check the browser URL is https://kbb.com and the TLS certificate is issued to *.kbb.com by DigiCert.
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2If using an Instant Cash Offer, get the offer in writing and confirm with the dealer directly before transferring a vehicle or personal info.
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3Never send money to escrow/buyer-protection services that claim to be from KBB — KBB has warned these are scams.
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4Report suspicious look‑alike sites or fraudulent listings to KBB (via their media/press contact) and to IC3 (ic3.gov).
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5Search recent BBB complaints or news articles about KBB offers when you rely on a high-value quote.
Evidence & Citations
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SimilarTech site profile for kbb.com (traffic & tech stack)
SimilarTech data shows ~18M monthly visits, US-leading audience, and use of Akamai CDN plus enterprise ad/analytics tools.
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Website traffic metrics (Alexa, bounce rate, keywords)
Traffic metrics show strong engagement (daily time on site ~3m32s, low-ish bounce ~38%), and relevant search keywords like "kelley blue book."
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WHOIS, DNS and SSL details for kbb.com
WHOIS lists CSC Corporate Domains as registrar; TLS certificate is DigiCert Global G2 (valid wildcard for *.kbb.com).
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USPTO record: KBB.COM trademark
USPTO shows a live registration for KBB.COM assigned to Kelley Blue Book Co., Inc., with first use in commerce documented in 2008.
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KBB press releases and fraud warnings / news
KBB has publicly warned customers about fraudulent sites impersonating KBB and clarified it does not offer escrow buyer-protection services.
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Google Safe Browsing / blacklist check
No matched threats were returned by Google Safe Browsing for the official kbb.com domain at time of check.
🕵🏻 Keep investigating
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