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Håkan Fägnell profile picture

Håkan Fägnell

IT-security pro from Stockholm (JH Support AB, ISO 27001). I build FortifyNet - a free 60-second website security audit: SSL, DNS, email auth, security headers & dark-web checks.

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X-Frame-Options: How It Works and How to Set It | FortifyNet

X-Frame-Options: How It Works and How to Set It | FortifyNet

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7 min read

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ERR_CERT_AUTHORITY_INVALID: Causes and Fixes | FortifyNet

ERR_CERT_AUTHORITY_INVALID: Causes and Fixes | FortifyNet

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8 min read
Pingdom Alternative: 6 Best Options in 2026 | FortifyNet

Pingdom Alternative: 6 Best Options in 2026 | FortifyNet

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8 min read
SSL/TLS Security Guide 2026: Achieve an A+ Rating

SSL/TLS Security Guide 2026: Achieve an A+ Rating

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6 min read
GTmetrix Alternative: 6 Best Options in 2026 | FortifyNet

GTmetrix Alternative: 6 Best Options in 2026 | FortifyNet

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8 min read
Dark Web Monitoring Guide for Businesses 2026

Dark Web Monitoring Guide for Businesses 2026

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5 min read
GDPR Compliance Security Audit Guide 2026 | FortifyNet

GDPR Compliance Security Audit Guide 2026 | FortifyNet

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4 min read
What Is DKIM? Email Signing Explained | FortifyNet

What Is DKIM? Email Signing Explained | FortifyNet

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7 min read
Mozilla Observatory Alternative 2026 | FortifyNet

Mozilla Observatory Alternative 2026 | FortifyNet

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7 min read
HTTP Security Headers: The Complete 2026 Guide with nginx & Apache Examples

HTTP Security Headers: The Complete 2026 Guide with nginx & Apache Examples

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6 min read
Core Web Vitals 2026: Complete Google Ranking Guide

Core Web Vitals 2026: Complete Google Ranking Guide

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5 min read
DNS Security Configuration: SPF, DMARC, DNSSEC & CAA Explained

DNS Security Configuration: SPF, DMARC, DNSSEC & CAA Explained

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6 min read
ERR_SSL_PROTOCOL_ERROR: What It Means and How to Fix It

ERR_SSL_PROTOCOL_ERROR: What It Means and How to Fix It

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7 min read
Best Google PageSpeed Alternatives in 2026 (Full Comparison)

Best Google PageSpeed Alternatives in 2026 (Full Comparison)

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4 min read
SPF Record Checker: How to Test, Read, and Fix Your SPF Record

SPF Record Checker: How to Test, Read, and Fix Your SPF Record

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7 min read
Website Security Checklist: 12 Essential Steps for 2026

Website Security Checklist: 12 Essential Steps for 2026

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7 min read
Website Vulnerability Scanner: What It Checks and How to Read Results

Website Vulnerability Scanner: What It Checks and How to Read Results

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7 min read
"Your Connection Is Not Private": What It Means and How to Fix It

"Your Connection Is Not Private": What It Means and How to Fix It

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5 min read
How to Set Up DMARC, Step by Step (From p=none to p=reject)

How to Set Up DMARC, Step by Step (From p=none to p=reject)

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8 min read
What Is HSTS? HTTP Strict Transport Security Explained

What Is HSTS? HTTP Strict Transport Security Explained

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6 min read
Best Semrush Alternatives in 2026 (For Website Security & Audits)

Best Semrush Alternatives in 2026 (For Website Security & Audits)

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4 min read
Best MX Toolbox Alternatives in 2026 (Honest Review)

Best MX Toolbox Alternatives in 2026 (Honest Review)

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4 min read
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