cost750.com
I would not trust cost750.com with personal, payment, or account information because several strong warning signs point to a high-risk offer rather than an official Costco program.
What is cost750.com offering?
Cost750.com has been described as a site offering a $750 Costco gift card after a visitor completes a quick survey, which is an unusually large reward for a very small task.
The recorded page title was “Get Your $750 Costco Gift Card,” while its description told visitors to complete a survey to receive the card.
That simple message matters because large rewards can make people act before they check who actually runs a website.
Social media posts have also promoted cost750.com as a supposed Costco product-review program, which can make the offer look like a special opportunity rather than an ordinary advertisement.
Is cost750.com really connected to Costco?
I found no reliable evidence showing that cost750.com is an official Costco website or an authorized Costco rewards program.
Costco's own customer service information says its legitimate marketing and transactional email domains use costco.com, including addresses under digital.costco.com, trx.costco.com, orders.costco.com, and related Costco subdomains.
Cost750.com is a completely separate domain rather than a subdomain of costco.com.
That difference is one of the easiest things a visitor can check before trusting an offer that uses a famous company's name.
Costco also maintains a current scam warning page containing examples of fake surveys, giveaways, gift-card messages, social media posts, loyalty rewards, and other offers made in Costco's name.
Costco specifically tells customers not to visit suspicious links or provide personal information to senders behind these types of messages.
What warning signs appear around the domain?
The strongest independent warning comes from the ScamAdviser report for cost750.com, which labels the domain “Likely Unsafe” and gives it a trust score of zero.
Its recorded WHOIS information shows that the domain was registered on November 27, 2024, and the identity behind the registration was hidden through a privacy service.
Private WHOIS information alone does not prove wrongdoing because many legitimate website owners use privacy protection.
The concern comes from the combination of a young domain, hidden ownership, low reported traffic, an unusually valuable reward, and use of another company's brand.
ScamAdviser also reported that DNSFilter had previously flagged the site as a threat, although automated reputation scores should be treated as warning signals rather than absolute proof.
The site reportedly had a valid SSL certificate, but HTTPS only means the connection is encrypted and does not prove that the organization receiving your information is trustworthy.
Why are survey gift-card offers risky?
The real value in this kind of offer may not be the survey itself but the information visitors provide while trying to qualify.
An email address, phone number, home address, birthday, password, or payment detail can be far more valuable than a few survey answers.
The U.S. Federal Trade Commission's phishing guidance warns that fake messages often imitate familiar companies, promise free items, and attempt to collect personal or financial information.
The FTC recommends contacting a company through a website or phone number you already know is genuine instead of trusting information supplied by an unexpected message.
Should you enter information on cost750.com?
I would avoid entering your name, email, phone number, Costco login, card information, address, or other sensitive details into cost750.com.
If you want to check a Costco reward or promotion, start directly from Costco Customer Service rather than following a social media advertisement or unfamiliar link.
If you already entered a password that you also use elsewhere, changing that reused password and enabling multi-factor authentication on important accounts are sensible protective steps, which also match the FTC's general phishing advice.
The biggest lesson from cost750.com is simple: a familiar logo and a secure-looking browser padlock tell you very little about who actually controls a website, while the domain name, official company records, ownership signals, and independent security reports tell you much more.