diff --git a/url.bs b/url.bs
index b42bdfc8..d5c0f23b 100644
--- a/url.bs
+++ b/url.bs
@@ -273,8 +273,8 @@ U+0020 SPACE, U+0023 (#), U+0025 (%), U+002F (/), U+003A (:), U+003F (?), U+0040
 U+005C (\), or U+005D (]).
 
 <p>A <a for=/>host</a>'s <dfn for=host export>public suffix</dfn> is the portion of a
-<a for=/>host</a> which is included on the Public Suffix List [[!PSL]]. To obtain
-<var>host</var>'s <a for=host>public suffix</a>, run these steps:
+<a for=/>host</a> which is included on the <cite>Public Suffix List</cite>. To obtain
+<var>host</var>'s <a for=host>public suffix</a>, run these steps: [[!PSL]]
 
 <ol>
  <li><p>If <var>host</var> is not a <a>domain</a>, then return null.
@@ -285,9 +285,8 @@ U+005C (\), or U+005D (]).
 </ol>
 
 <p>A <a for=/>host</a>'s <dfn for=host export>registrable domain</dfn> is a <a>domain</a> formed by
-the most specific public suffix, along with the domain label immediately preceeding it. If no such
-label is available, the <a for=host>registrable domain</a> is null. To obtain <var>host</var>'s
-<a for=host>registrable domain</a>, run these steps:
+the most specific public suffix, along with the domain label immediately preceeding it, if any. To
+obtain <var>host</var>'s <a for=host>registrable domain</a>, run these steps:
 
 <ol>
  <li><p>If <var>host</var>'s <a for=host>public suffix</a> is null or <var>host</var>'s
@@ -295,7 +294,7 @@ label is available, the <a for=host>registrable domain</a> is null. To obtain <v
 
  <li><p>Return the <a for=host>registrable domain</a> obtained by executing the
  <a href="https://publicsuffix.org/list/">algorithm</a> defined by the Public Suffix List on
- <var>host</var>. [[!PSL]].
+ <var>host</var>. [[!PSL]]
 </ol>
 
 <div class=example id=example-host-psl>
@@ -351,45 +350,45 @@ label is available, the <a for=host>registrable domain</a> is null. To obtain <v
 <dfn for=host export>same site</dfn> with each other if either of the following statements are true:
 
 <ul class=brief>
- <li><p><var>A</var> <a for=host>equals</a> <var>B</var>, and <var>A</var>'s <a for=host>registrable
- domain</a> is not null.
+ <li><p><var>A</var> <a for=host>equals</a> <var>B</var> and <var>A</var>'s
+ <a for=host>registrable domain</a> is non-null.
 
  <li><p><var>A</var>'s <a for=host>registrable domain</a> is <var>B</var>'s
- <a for=host>registrable domain</a> and is not null.
+ <a for=host>registrable domain</a> and is non-null.
 </ul>
 
 <div class=example id=example-same-site>
- <p>Assuming that <code>suffix.example</code> is a <a for=host>public suffix</a>, and that
+ <p>Assuming that <code>suffix.example</code> is a <a for=host>public suffix</a> and that
  <code>example.com</code> is not:
 
  <ul>
   <li><p><code>example.com</code>, <code>sub.example.com</code>, <code>other.example.com</code>,
   <code>sub.sub.example.com</code>, and <code>sub.other.example.com</code> are all <a>same site</a>
-  with each other (and themselves), as each host's <a for=host>registrable domain</a> is
+  with each other (and themselves), as each their <a for=host>registrable domain</a> is
   <code>example.com</code>.
 
   <li><p><code>registrable.suffix.example</code>, <code>sub.registrable.suffix.example</code>,
   <code>other.registrable.suffix.example</code>, <code>sub.sub.registrable.suffix.example</code>,
   and <code>sub.other.registrable.suffix.example</code> are all <a>same site</a> with each other
-  (and themselves), as each host's <a for=host>registrable domain</a> is
+  (and themselves), as each their <a for=host>registrable domain</a> is
   <code>registrable.suffix.example</code>.
 
-  <li><p><code>example.com</code> and <code>registrable.suffix.example</code> are not <a>same
-  site</a> with each other, as their <a for=host>registrable domains</a> differ.
+  <li><p><code>example.com</code> and <code>registrable.suffix.example</code> are not
+  <a>same site</a> with each other, as their <a for=host>registrable domains</a> differ.
 
   <li><p><code>suffix.example</code> is not <a>same site</a> with <code>suffix.example</code>, as
-  it is a <a for=host>public suffix</a>, and therefore has a null <a for=host>registrable
-  domain</a>.
+  it is a <a for=host>public suffix</a>, and therefore has a null
+  <a for=host>registrable domain</a>.
  </ul>
 </div>
 
-<p class=warning>Specifications should avoid relying on "<a for=host>public suffix</a>",
+<p class=warning>Specifications should avoid depending on "<a for=host>public suffix</a>",
 "<a for=host>registrable domain</a>", and "<a>same site</a>". The public suffix list will diverge
 from client to client, and cannot be relied-upon to provide a hard security boundary. Specifications
 which ignore this advice are encouraged to carefully consider whether URLs' schemes ought to be
-incorporated into any decision made based upon whether or not two <a for=/>hosts</a> are <a>same
-site</a>. HTML's <a>same origin-domain</a> concept is a reasonable example of this consideration in
-practice.
+incorporated into any decision made based upon whether or not two <a for=/>hosts</a> are
+<a>same site</a>. HTML's <a>same origin-domain</a> concept is a reasonable example of this
+consideration in practice.
 
 
 <h3 id=idna>IDNA</h3>