Website Security Scanner

Find website vulnerabilities before attackers do

Run a full scan on a site you own. Get Started, verify your email, then pick a depth on the dashboard. From starter credits, no card required.

Overview

What a Website Security Scanner Does

A website security scanner probes your web application for common security weaknesses so you can fix them before attackers exploit them.

Website security scanner console with a site being probed and severity-ordered findings.
Crawl the origin, run the checks, then a report with severity, evidence, and fix steps.

A website security scanner is an automated tool that tests your web application for vulnerabilities such as SQL injection, cross-site scripting (XSS), exposed sensitive paths, and misconfigurations. It crawls your site, discovers forms and parameters, then injects test payloads to find weaknesses. The best scanners report findings with severity, evidence, and remediation steps so you can prioritize fixes.

Vulnify combines quick public tools (SSL checker, security headers analyzer, DNS checker) with full account-backed scans. You can run a quick scan for a fast baseline or a comprehensive scan for launch readiness and audits. All scans produce actionable reports with prioritized remediation guidance.

Coverage

What Vulnify Scans For

Coverage across OWASP Top 10 and common web security misconfigurations.

Injection & XSS

Active tests against forms, parameters, and reflected input.

  • SQL injection detection
  • Cross-site scripting (XSS) detection
  • OWASP Top 10 aligned checks across scan depths

Transport & headers

Certificate, protocol, and response-header posture in every scan.

  • Security headers (CSP, HSTS, X-Frame-Options, and more)
  • SSL/TLS certificate validity and configuration
  • Cookie security flags (Secure, HttpOnly, SameSite)

Exposure & config

Public surfaces and misconfigurations that leak access or data.

  • Exposed sensitive paths (.git, admin panels, backups)
  • Open redirect and redirect chain vulnerabilities
  • CORS misconfiguration and wildcard origin exposure
  • Technology fingerprint and disclosure risks
Scan coverage across injection, transport, headers, and exposed paths.
One scan covers injection, TLS and headers, cookies, CORS, and exposed paths.
What now

After the scan

Keep watching the origin, or order an evidence-backed pentest when you need a verified engagement.

Website Watch

Daily pulse plus weekly Standard or Deep. Email when something new appears. From $29 per site per month.

Set up Watch

Penetration Test — $297

Automated evidence-backed testing with HTML, PDF, and one included retest. You must own the target or have written permission.

How the $297 pentest works

Comprehensive Pentest — $497

Extra engines, up to five extra verified hosts, a two-role matrix, and two retests. A detailed PDF for specialists and developers.

How the $497 pentest works

Workflow

How It Works

After Get Started, pick a depth on the dashboard. Results are ready in minutes.

  1. Target URL

    A site you own or have written permission to test.

  2. Pick a depth

    Quick, Standard, Deep, or Comprehensive.

  3. Crawl and checks

    Forms, headers, TLS, paths, and OWASP checks.

  4. Report

    Severity, evidence, and ticket-ready fix steps.

Vulnify scans are designed for authorized testing. After Get Started and email verification, enter your target URL on the dashboard, choose a scan depth (Quick, Standard, Deep, or Comprehensive), and start the scan. The scanner crawls your site, discovers pages and forms, and runs targeted checks for each vulnerability type. Results are organized by severity with evidence, proof of concept, and remediation steps.

Free public tools are available without signup: the SSL checker for certificate trust and expiry, the security headers analyzer for CSP and HSTS, and the DNS checker for SPF, DKIM, and DMARC. These give you quick diagnostics. Full scans require an account and credits for deeper coverage, saved history, and scheduled runs. Cloud-based — no installation required. Runs directly from your browser on Windows, Mac, or Linux.

Depths

Scan Depth Comparison

Choose the right depth for your use case.

Swipe to compare

DepthDurationChecksBest For
Quick2-3 min~40Fast baseline, pre-release sanity check
Standard5-7 min~80Default for most production sites
Deep12-15 min~120Higher-risk releases, complex apps
Comprehensive15-20 min~140+Launch readiness, audits, compliance
Compare

Vulnify vs. Other Website Security Scanners

Compare Vulnify with typical alternatives.

Swipe to compare

CapabilityVulnifyTypical ScannerWhy It Matters
Free public tools (no signup)YesLimited or paidTry before you commit
Pay-per-scan creditsYesSubscription onlyFlexible for occasional scans
SQL injection & XSS testingYesVariesCore OWASP coverage
Security headers analysisYesOften separate toolIntegrated in one report
Remediation guidancePrioritized fix stepsGeneric or absentMove from finding to fix
Scheduled scansYesEnterprise tierRecurring validation
Findings

Types of Vulnerabilities a Scanner Finds

Understanding what automated scanners can and cannot detect.

SQL injection (SQLi) occurs when unsanitized user input is concatenated into database queries. Attackers can extract data, modify records, or bypass authentication. Scanners test input fields with payloads designed to trigger SQL errors or boolean logic. Vulnify includes SQLi checks across discovered forms and parameters.

Cross-site scripting (XSS) allows attackers to inject malicious scripts into pages viewed by other users. Scanners test for reflected and stored XSS by injecting script tags and event handlers into inputs. Security headers like Content-Security-Policy (CSP) reduce XSS risk and are also checked.

Exposed sensitive paths include .git directories, admin panels, backup files, and configuration artifacts. Scanners probe common paths to see if sensitive resources are publicly reachable. Vulnify checks for exposed .git, .env, wp-admin, and similar paths.

SSL/TLS and security headers are configuration issues rather than code bugs. Missing HSTS, weak CSP, or insecure cookie flags can be exploited. Vulnify verifies certificate trust, expiry, protocol support, and header posture in every scan.

Playbook

Step-by-Step: Running Your First Scan

From signup to report in under 10 minutes.

  1. Create a free account

    Get Started at Vulnify to receive starter credits. Verify your email before a full scan. No credit card required for the free tier.

  2. Enter your target URL

    On the dashboard after Get Started, paste the full URL (e.g. https://example.com). The scanner crawls from there.

  3. Choose scan depth

    Quick for a fast baseline, Standard for most sites, Deep or Comprehensive for audits.

  4. Start the scan

    Scans run in the cloud. You can leave the page; results will be ready in your dashboard.

  5. Review the report

    Findings are grouped by severity. Each includes evidence and remediation steps.

  6. Fix and re-scan

    Address critical and high findings first, then re-run the scan to verify closure.

FAQ

Website Security Scanner FAQ

Answers to common questions about vulnerability scanning and Vulnify.

A website security scanner is an automated tool that tests your web application for common vulnerabilities such as SQL injection, XSS, exposed sensitive paths, and misconfigurations. It sends crafted requests to find weaknesses before attackers can exploit them. Vulnify scans from the edge without requiring server-side installation.

Start Scanning Your Website

Get Started for a full vulnerability scan covering SQL injection, XSS, exposed paths, and misconfigurations. Public SSL, headers, and DNS tools need no account.