Configuring SSL in Nginx with Let's Encrypt
Complete SSL/TLS configuration in Nginx: installing Certbot, server blocks, HSTS, OCSP stapling, cipher suites, and HTTP-to-HTTPS redirects.
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How to check a website, investigate errors and track changes.
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Complete SSL/TLS configuration in Nginx: installing Certbot, server blocks, HSTS, OCSP stapling, cipher suites, and HTTP-to-HTTPS redirects.
The difference between nofollow and dofollow links. When to use each type for external and internal links. Their impact on SEO and practical recommendations.
A detailed guide to Open Graph tags for Facebook, VK, Telegram, Twitter, and other platforms. Configure previews, image sizes, and content types.
Current account security practices in 2026. Password managers, two-factor authentication, passkeys. Migration and recommendations.
A detailed guide to online PHP testing: tools, limitations, security, and practical use cases. Comparison with local development.
A guide to using QR codes in business. Code types, use cases, analytics, and printing. Practical recommendations for marketing and operations.
QR code design: colors, logos, module shapes. Balancing readability and aesthetics. Practical recommendations and common mistakes.
A complete regular expression cheat sheet: metacharacters, quantifiers, groups, lookahead/lookbehind, and flags. A reference with examples for developers.
A detailed guide to regular expressions. Syntax, metacharacters, groups, lookahead, and lookbehind. Practical examples for JavaScript, Python, and PHP.
20 practical regex patterns: email, phone, URL, IP, date, password, HTML, logs. Ready-to-use solutions for validation and parsing.
Open a tool for the task described in the article.