DCHost guide: The First 30 Minutes of a Website Outage: An Incident Playbook. A service bell sits among violet and navy ceramic routes with small metal checkpoints around it.
General

The First 30 Minutes of a Website Outage: An Incident Playbook

24 September 2026

A practical first-30-minutes playbook for diagnosing website outages across DNS, SSL, web-server, application, database and hosting layers.

A server, blank cards and a purple branching connector representing DNS records and name resolution.
General

Common DNS Record Mistakes: TTL, CNAME, MX and CAA

3 November 2025

Learn which DNS records can coexist, why MX and SRV targets need direct addresses, and how TTLs affect changes. Use practical mail, CAA and DNSSEC checks to diagnose faults and plan migrations.

Three network inlets converge on a shared purple outlet, with a coiled alternative connection beside them.
General

IPv4 Cost Planning for Hosting Infrastructure

3 November 2025

Build a practical IPv4 budget: compare buying and leasing, check address reputation, consolidate public endpoints, and use IPv6 where it can reduce the addresses you need.

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General

HTTP Security Headers: HSTS and CSP Guide

3 November 2025

Understand the roles and limits of HTTP security headers. Use short HSTS policies, CSP Report-Only, deliberate framing rules and correct MIME types, with Nginx, Apache and Express examples to validate.

General

Explore DCHost guides to hosting, servers, domains and web technology. Choose a topic category to find setup instructions, maintenance advice and troubleshooting articles.

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WordPress Server Tuning: PHP-FPM, OPcache, Redis and MySQL

A measured approach to WordPress server tuning, from PHP workers and OPcache to Redis object caching and MySQL. Diagnose bottlenecks and verify correctness before keeping a change.

3 November 2025
A laptop connects through a purple tunnel to a gateway, with a separate connection continuing from the gateway to a globe.

What Is a VPN? How It Works and Its Limits

A VPN can protect traffic between your device and a VPN server, but it does not make you anonymous. Explore how VPNs work, their privacy limits, and practical criteria for choosing a service.

25 October 2024
A purple filter screens a dense stream of spheres, allowing a sparse stream to continue toward a small storefront.

What Is DDoS? How to Protect Your Website

DDoS attacks can exhaust bandwidth, network capacity, or application resources. Explore layered defenses for your website, their limitations, and the essentials of monitoring and incident response.

25 October 2024
A translucent tunnel joins a globe and server, carrying a purple data sphere beside a certificate panel with a raised seal.

What Is an SSL Certificate? Website Security Basics

SSL/TLS certificates help authenticate websites and protect data in transit. Explore certificate validation types, HTTPS setup basics, SEO considerations and complementary website security measures.

25 October 2024
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