Check Website Security Online

Your website is exposed to the internet 24/7. Every missing header, every weak TLS cipher, every cookie without a Secure flag is an open door. The good news: most of these issues are easy to detect and easy to fix — if you know where to look. Checking your website security online is the fastest way to find out where you stand.

Most developers only think about security after something breaks. ScanMyVibe flips that. You run a free online scan before you launch, before your first customer, before an audit. You get a clear grade, a prioritized list, and a copy-paste fix for every finding.

Online checks are particularly useful because you do not need access to the server, the codebase, or any credentials. If you can paste a URL, you can run a full audit — from any device, in any country, at any time.

A complete online security check evaluates eight major categories:

• → TLS/SSL grade — cert chain, expiry, protocol versions, cipher suite strength.
• → Security headers — CSP, HSTS, X-Frame-Options, Referrer-Policy, Permissions-Policy, COOP, COEP.
• → Cookies — Secure, HttpOnly, SameSite, __Host- prefixes.
• → CORS — Access-Control-Allow-Origin, credentials handling, preflight correctness.
• → Server fingerprinting — leaked versions, debug endpoints, default pages.
• → Open redirects — unvalidated redirect parameters that enable phishing.
• → Content security — mixed content, third-party script audit, subresource integrity.
• → DNS hygiene — SPF, DMARC, DKIM, CAA records.

ScanMyVibe runs all eight categories in a single pass and combines them into one grade. No tool-hopping, no spreadsheets.

Running a security check online is dead simple:

1. Open scanmyvibe.co. No account required.
2. Paste your URL. Include https:// to get a TLS grade on top of the HTTP analysis.
3. Press Scan. We run 100+ checks in parallel — most finish in under 30 seconds.
4. Read the report. Findings are grouped by severity and category with CWE references.
5. Copy the fix prompt. Every finding has a one-click prompt for Cursor, Claude or Copilot.
6. Deploy and re-scan. Verify the fix is live. Nothing is cached — every scan is fresh.

For a deeper tutorial, see our complete guide to securing a website.

An A grade on ScanMyVibe means: modern TLS (1.2+), HSTS with preload, a strict CSP without unsafe-inline or unsafe-eval, SameSite=Lax or Strict cookies with Secure and HttpOnly, no version disclosure, no exposed .env or .git, and a clean CORS configuration.

A B grade usually means one or two minor headers are missing. A C grade means you are missing core protections. D and F mean something is actively exposing you — often a wildcard CORS with credentials, an expired certificate, or an open .git directory.

Do not expect an A on the first scan. Our data shows that the median site starts at a C. With 30 minutes of fixes, most sites reach an A.

A manual audit by a security consultant is thorough but expensive — typically $5k–$50k per engagement. Online security checks do not replace that depth, but they catch the 80% of findings that a consultant would flag anyway. In most cases you only need a consultant for business-logic flaws, auth bypasses, and architecture review.

ScanMyVibe is designed to be the first and last step of your security workflow: run it before you ship to catch the easy stuff, run it after every deploy to verify nothing regressed.

A one-off scan is useful. Scheduled scans are better. ScanMyVibe Pro lets you monitor any number of domains on a schedule — daily, weekly, or after every deploy via a webhook from your CI pipeline. You get Slack and email alerts the moment a finding regresses.

You can also generate a CSP with our CSP header generator, and compare scanners with our guide to free vulnerability scanners.