Link to index page of website

I know this post is old and has an answer. But here is my contribution that also supports index that is not exactly in the root directory

to goto

mydomain.com/index.html

without index.html showing in address bar

<a href="/">Home</a>

this will always point to mydomain.com no matter where the directory your file was saved to.

to point to the index in a directory use this:

<a href="./">Home</a>

this will point to mydomain.com/subdir for mydomain.com/subdir/index.html while the accepted answer will always point to mydomain.com (and this is not always the desired action)

Create a ".htaccess" file and upload to your host public folder

<IfModule mod_rewrite.c> 
RewriteEngine On

RewriteCond %{THE_REQUEST} ^[A-Z]{3,9}\ /index\.html\ HTTP/ 
RewriteRule ^index\.html$ http://www.yourwebsite.com.ph/ [R=301,L]
RewriteCond %{THE_REQUEST} \.html 
RewriteRule ^(.*)\.html$ /$1 [R=301,L]
</IfModule>

You can just do this:

<a href="/">Home</a>

Any href preceded by a slash is relative the root directory.

It should be noted that when viewing a webpage from a local hard drive in a browser, this will cause the link not to function.