How to test the SMTP connectivity of your MX servers
Your DNS records are perfect, but emails aren't getting through? The problem might be at the transport layer. This guide shows you how to test SMTP connectivity for each MX server, step by step.
Articles - Page 6
February 2026
Phishing trends 2025-2026: APWG statistics and new techniques
Phishing has evolved: generative AI, malicious QR codes, MFA bypass. Explore the 2025 APWG figures and the techniques redefining the threat landscape in 2026.
Google Safe Browsing, URLhaus, PhishTank, VirusTotal: how threat intelligence databases work
Every day, your browser queries threat intelligence databases to block malicious URLs. Learn how the 4 main databases work and why combining them is essential.
Clicked a phishing link: what to do right now?
3.4 billion phishing emails are sent every day. If you clicked a suspicious link, follow these emergency steps to limit the damage and secure your accounts.
How to spot a phishing email in 2026
91% of cyberattacks start with an email. Learn how to spot the warning signs, verify a suspicious link, and protect your inbox with the right protocols.
Set up TLS-RPT: step-by-step guide for Microsoft 365, Google Workspace, and OVHcloud
Hands-on tutorial to set up TLS-RPT (SMTP TLS Reporting) on Microsoft 365, Google Workspace, and OVHcloud. DNS record, verification, and troubleshooting included.
Median web page weight in 2025: 15 years of web bloat
The median web page weight has grown 5x in 15 years. HTTP Archive data, resource breakdown by type, SEO impact, and projections for 2026-2028.
Crawl budget: understanding and optimizing how Google crawls your site
Crawl budget determines how many pages Googlebot explores on your site. Learn how to analyze it, optimize it, and avoid common pitfalls.
Googlebot's 2 MB Crawl Limit: What Happens When Your Pages Are Too Heavy
Google only crawls the first 2 MB of a page's HTML source. Beyond that, content is truncated and never indexed. Here's what it means for your SEO.