Articles list about web hosting

SaaS hosting is a category of its own, where an hour of downtime costs more than a year of savings on a cheap provider. The article covers: what real 99.9% vs 99.99% means in downtime minutes, choosing between VPS and dedicated at different stages (from MVP to enterprise), multi-tenancy and resource isolation requirements, PgBouncer and read replicas for the database, GDPR/HIPAA/PCI DSS in practice, SLI/SLO/Error budget, and a provider verification checklist before signing a contract.

HTTP/3 isn't just a new protocol version — it's a fundamental transport change from TCP to QUIC (UDP). The article explains: why HTTP/3 is faster than HTTP/2 on mobile networks (0-RTT, independent streams, connection migration), real benchmarks across various network conditions, how to enable it on Nginx 1.25+ in 15 minutes, why UDP 443 must be opened in the firewall, and when HTTP/3 delivers the biggest effect.

90% of migration problems result from poor preparation. Complete guide: file and database backup, DNS TTL reduction 48 hours ahead, transfer via rsync + mysqldump, testing via hosts file, final synchronization, DNS switch, SEO and email verification. Separate instructions for WordPress, cPanel, DirectAdmin, and servers without SSH.

We show the complete path: Ubuntu VPS preparation, NVM installation, PM2 cluster mode, Nginx reverse proxy with SSL, security (Helmet.js, rate limiting, npm audit), Redis caching, zero-downtime deployment, and monitoring via Prometheus + Grafana. Every step with real configurations and explanations.

Why doesn't the site work after IP change? We cover DNS under the hood — from recursive resolver to authoritative server. Record configuration, speeding up propagation via TTL, DNSSEC and DoH protection. Practical checklist and diagnostic commands.

How to set up reliable MySQL backups? We cover mysqldump with --single-transaction, Percona XtraBackup for production, GFS retention scheme, Point-in-Time Recovery via binary logs. Cron automation, verification scripts, and 5 common backup mistakes.

403 Forbidden or emails not delivered? We cover all reasons for IP blocking — from Fail2Ban to global blacklists. Step-by-step diagnostics, commands for unblocking in Fail2Ban, CSF, iptables, Cloudflare. How to set up whitelist and avoid blocks.

How to properly configure a Python application for production? We cover choosing between Gunicorn and uWSGI, worker count formula, systemd auto-restart, Nginx configuration, connection pooling with PgBouncer, Docker best practices, Celery for heavy tasks, and monitoring with Sentry.

8 cores / 16 threads — what does this mean in practice? We explain the difference between physical cores and logical threads, when Hyper-Threading helps and when it doesn't. Specific recommendations for WordPress, eCommerce, API, and analytics. How to check VPS CPU and avoid overpaying.

A site without HTTPS in 2026 means lost Google rankings and user trust. We cover the difference between SSL and TLS, certificate types (DV, OV, EV, Wildcard), getting a free certificate via Certbot, optimal Nginx and Apache configurations for TLS 1.3, HSTS setup and SSL Labs verification.

A $50/month server with proper tuning often outperforms a $200 server with defaults. We cover CPU selection (single-thread performance), RAM and caching (Redis, FastCGI Cache), NVMe disks, PHP-FPM and MySQL configuration. When to move from VPS to Dedicated and how to scale horizontally.

70% of Hostiserver clients use Nginx. We break down architectural differences, real-world performance under load, ready configs for WordPress + FastCGI Cache, Reverse Proxy. When Apache still makes sense, how to migrate, and why mod_php is an anachronism.

The average Linux server receives hundreds of SSH brute-force attempts daily. We cover how to properly configure SSH: switching from passwords to Ed25519 keys, critical sshd_config parameters, Fail2Ban, firewall rules, and bastion hosts. Specific commands and common mistakes to avoid.

96% of WordPress vulnerabilities come from plugins. We've selected 5 that cover all critical needs: WP Rocket for speed, Wordfence for security, Rank Math for SEO, ShortPixel for images, Perfmatters for code optimization. For each — specific settings and alternatives.

Step-by-step guide for setting up 301 redirect HTTP→HTTPS. Configs for Apache 2.2/2.4, Nginx with HTTP/2, Cloudflare Page Rules. How to avoid redirect loops, configure HSTS, verify everything works. Checklist and FAQ included.

A slow website isn't a technical issue — it's a hole in your budget. We analyze 5 causes of slowdowns: from heavy images to slow servers. Concrete solutions, diagnostic tools, and a self-check checklist.

SQL Injection has remained in OWASP Top 10 for over 20 years. This guide contains real protection configurations from the Hostiserver team: prepared statements for PHP/Python/Node.js, ModSecurity WAF setup, MySQL hardening and monitoring. Includes analysis of recent CVEs 2024-2025 and recommended PHP/MySQL versions for 2026.

Complete Redis ports guide: 6379, 16379, 26379. Security with ACL & TLS, port configuration, multiple instances, troubleshooting. Updated for Redis 8.

WordPress powers 43.6% of all websites in the world — that’s 80-120 million active projects. But most owners don’t understand the difference between “WordPress hosting” and a properly configured infrastructure.

Choosing between a Cloud VPS and a dedicated server is not just a technical question, but a financial decision that can cost your business thousands of dollars. In this article, we break it down in detail.