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src/Universalis.Application/doc_description.html

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-There is a rate limit of 12 req/s (24 req/s burst) on the API, and 5 req/s (10 req/s burst) on the frontend.
-To map item IDs to item names or vice versa, use <a href="https://xivapi.com">XIVAPI</a>.
-To get a mapping of world IDs to world names, use <a href="https://github.com/xivapi/ffxiv-datamining/blob/master/csv/World.csv">this sheet.</a>
+Welcome to the Universalis documentation page.
+<br/>
+There is a rate limit of 12 req/s (24 req/s burst) on the API, and 5 req/s (10 req/s burst) on the website itself.
+To map item IDs to item names or vice versa, use <a href="https://xivapi.com/docs/Search#search">XIVAPI</a>.
+To get a mapping of world IDs to world names, use <a href="https://xivapi.com/World">XIVAPI</a> or
+<a href="https://github.com/xivapi/ffxiv-datamining/blob/master/csv/World.csv">this sheet.</a>
+The <code>key</code> column represents the item ID, and the <code>Name</code> column represents the world name.
+Note that not all listed worlds are available to be used &#8212; many of the worlds in this sheet are test worlds,
+or Korean worlds (Korea is unsupported at this time).
+<br/>
+If you use this API for your projects, please consider supporting the website's ever-increasing bandwidth costs on
+<a href="https://patreon.com/universalis">Patreon</a>, or making a one-time donation on
+<a href="https://ko-fi.com/karashiiro">Ko-fi</a>.