Posts tagged with Google search

Nofollow, noreferrer and noopener

Posted | Updated
Filed under WordPress

Nofollow, noreferrer and noopener rel attribute values

HTML has various ways for search engines and web browsers to understand data. Here we show how to use nofollow, noreferrer and noopener as rel attribute values.

Relay switch modules

Posted | Updated 27 January 2018
Filed under Electronics

Relay switch modules are used as high-voltage AC switches using DC power. It is made up of a relay, screw terminals, a resistor, diode, capacitor, transistor and LED.