The Lytics Content Affinity Engine provides users with a taxonomy of rich tags on millions of topics. In most cases, the Lytics Content Affinity Engine provides users with all the topic modeling they need to power great personalization. In the event that you’d like to add your own taxonomy to what the Lytics Content Affinity Engine offers, you can add custom topics to the Content Graph and User Affinities by adding a “meta” property to the web page. Here is an example:

```

<meta name="lytics:topics" content="Pants, Jeans" />

```

After successfully updating the `meta` property, the custom topics will be processed by the Lytics Content Affinity Engine within one to two hours.