5 things your website is getting wrong (and how to check for free)

Most websites fail basic technical hygiene checks. Not because developers don't care, but because these things are easy to miss when you're focused on shipping features. Here are five common issues worth fixing today. 1. Missing or Wrong Security Headers Headers like Content-Security-Policy , X-Frame-Options , and Strict-Transport-Security (HSTS) protect your users from clickjacking, XSS attacks, and protocol downgrade attacks. Skipping them leaves real attack surface open. Browsers and security scanners will flag these absences, and some enterprise clients actively check before integrating with your API. How to check: Run curl -I https://yourdomain.com and scan the response headers. Or paste your URL into securityheaders.com for a free graded report. 2. Open Graph Tags That Break Link Previews When someone shares your link on Slack, LinkedIn, or Twitter, the platform reads your Open Graph meta tags to build the preview card. If og:title , og:image , or og:description are missing or mi