Apache
Definition
The Apache HTTP Server – one of the oldest and most popular web servers. Known for flexibility and wide hosting support.
What is Apache?
Apache (officially Apache HTTP Server) is open-source web server software that has powered the web since 1995. It's one of the most widely deployed web servers, known for its flexibility, extensive documentation, and broad hosting support.
Most shared hosting providers run Apache, making it the default for millions of WordPress and PHP websites.
Why Apache Matters
Widespread Support
Almost every web host supports Apache. Configuration files (.htaccess) work universally.
Flexibility
Highly configurable through modules and .htaccess files. Can be adapted to almost any need.
Documentation
Decades of documentation, tutorials, and community knowledge.
PHP Integration
Excellent integration with PHP through mod_php, making it ideal for WordPress and similar platforms.
.htaccess Files
Apache's signature feature is the .htaccess file – a configuration file that sits in your website directory. It controls:
- Redirects – 301 redirects, www/non-www, HTTPS
- URL rewriting – clean URLs, SEO-friendly paths
- Access control – password protection, IP blocking
- Caching – browser cache headers
- Security – blocking malicious requests
Example redirect in .htaccess:
Redirect 301 /old-page /new-page
Apache vs Nginx
| Factor | Apache | Nginx |
|---|---|---|
| Configuration | .htaccess files | Central config only |
| Resource usage | Higher | Lower |
| Best for | Shared hosting, PHP | High traffic, static files |
| Learning curve | Easier | Steeper |
| Flexibility | Per-directory config | Server-wide only |
When You'll Encounter Apache
If you use:
- Shared hosting
- cPanel/Plesk hosting
- Many VPS setups
- WordPress on budget hosting
You're likely running Apache. It's reliable, well-understood, and gets the job done for most websites.