SSL Labs Server Test
Focus: ssl, tls and https. Shares security with Security Headers. Rated 4.7 (Security Headers: 4.6).
Web AppFreeWeb
4.7Visit
Web App
Security Headers
Grade a website's HTTP security headers and see what is missing.
Rating
4.6 / 5
Pricing
Free
Difficulty
Intermediate
Works on
Web
Built with love by Shushant Lakhyani. Building bestproductivityresources.com
What is Security Headers?
Security Headers scans any website and grades its HTTP response headers from A+ to F, showing which protections such as Content Security Policy or HSTS are present or missing. Each result explains the headers in plain terms, and the scan is free.
Pros: what Security Headers does well
- Simple letter grade
- Explains each header
- Free and instant
Cons: where it falls short
- Covers headers only, not full security
- Results are public by default unless hidden
Who Security Headers is for
Developers and site owners who want a quick check of basic web security.
Who can skip it
Anyone who needs a full security audit.
Security Headers alternatives
Not sold on Security Headers? These do a similar job, and each card says what it has in common.
Vaultwarden
Focus: password manager, self-hosted and bitwarden. Shares security with Security Headers. Rated 4.7 (Security Headers: 4.6).
Web AppFreeWeb
4.7Visit
VirusTotal
Focus: malware scan, links and antivirus. Shares security with Security Headers. Rated 4.7 (Security Headers: 4.6).
Web AppFreeWeb
4.7Visit
RealFaviconGenerator
Focus: favicon, app icons and design tools. Shares web development with Security Headers. Same 4.6 rating.
Web AppFreeWeb
4.6Visit
shadcn/ui
Focus: ui components, react and tailwind. Shares web development with Security Headers. A framework, not a web app. Rated 4.9 (Security Headers: 4.6).
FrameworkFreeWeb
4.9Visit
Visual Studio Code
Focus: code editor, extensions and dreamweaver alternative. Shares web development with Security Headers. A desktop app, not a web app. Adds Windows, macOS and Linux. Rated 4.8 (Security Headers: 4.6).
Desktop AppFreeWindows, macOS
4.8Visit
Free alternatives to Security Headers
Want to spend nothing? These free picks cover similar ground.
Agent Governance Toolkit
Focus: ai governance, agents and policy. Shares security with Security Headers. A framework, not a web app. Adds Windows, macOS and Linux. Rated 4.7 (Security Headers: 4.6).
FrameworkFreeWindows, macOS
4.7Visit
daisyUI
Focus: tailwind css, ui components and themes. Shares web development with Security Headers. A framework, not a web app. Rated 4.7 (Security Headers: 4.6).
FrameworkFreeWeb
4.7Visit
hol-guard
Focus: ai agents, prompt injection and guardrails. Shares security with Security Headers. An AI tool, not a web app. Adds macOS, Windows and Linux. Rated 4.7 (Security Headers: 4.6).
AI ToolFreemacOS, Windows
4.7Visit
SOPS
Focus: encryption, secrets and config files. Shares security with Security Headers. Same 4.6 rating.
OtherFreeCross-Platform
4.6Visit
DeepTeam
Focus: red teaming, llm and ai agents. Shares security with Security Headers. An AI tool, not a web app. Rated 4.5 (Security Headers: 4.6).
AI ToolFreeCross-Platform
4.5Visit
gopass
Focus: password manager, encryption and terminal. Shares security with Security Headers. A desktop app, not a web app. Adds macOS, Windows and Linux. Rated 4.5 (Security Headers: 4.6).
Desktop AppFreemacOS, Windows
4.5Visit
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