Grade B — 2 to fix, 1 minor.
passive scan · the deep checks need you signed in · scanned 20h ago
This is a passive website security report for sonora-olive.vercel.app, graded B (84/100). We checked its SSL certificate, HTTP security headers, DNS records, email spoofing protection and publicly exposed files — the same surface a browser and a search engine already see.
We found 3 issues on this scan — each has a plain-English explanation and a copy-paste fix below.
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There's no Content-Security-Policy header. A CSP is the single most effective defense against cross-site scripting (XSS): it tells the browser which sources of scripts, styles, and other content are allowed, so an injected <script> from a compromised dependency or a reflected input simply won't run.
Nothing stops your site from being embedded in an <iframe> on another domain. An attacker can overlay an invisible frame of your app on their page and trick a logged-in user into clicking buttons they can't see — a clickjacking attack.
Without `X-Content-Type-Options: nosniff`, browsers may guess ("sniff") the type of a response and, for example, run an uploaded file as JavaScript. It's a one-line header that closes a whole class of content-type confusion bugs.
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