<dt>gg<dd><a href="https://www.google.com/search?q=%s">Google</a></dd>
<dt>oid<dd><a href="https://oidref.com/%s">OID</a></dd>
<dt>py<dd><a href="https://pypi.org/project/%s/">PyPI</a></dd>
-<dt>rfc<dd><a href="https://tools.ietf.org/html/rfc%s">RFC</a></dd>
+<dt>rfc<dd><a href="https://datatracker.ietf.org/doc/html/rfc%s">RFC</a></dd>
<dt>s<dd><a href="https://html.duckduckgo.com/html?q=%s">DuckDuckGo</a></dd>
<dt>we<dd><a href="https://en.wikipedia.org/wiki/%s">WikiEN</a></dd>
<dt>wr<dd><a href="https://ru.wikipedia.org/wiki/%s">WikiRU</a></dd>