10 points r here,which r show u that weather a website r secure or not
1. No pop-up ads.
2. No unsolicited email.
3. Other shoppers had good experiences.
4. The site has a physical address or phone number.
5. There is a return policy.
6. Prices aren't too low to believe.
7. Credit cards are accepted.
8. The site features a padlock or unbroken key icon.
9. Website url should be begin with https://
10. The site has a privacy statement.