-from the public internet. For such cases one could use the `dns-01` challenge.
-That challenge provides also a certain value, but not over a text file, but
-through a DNS record on the authority name server of the domain.
+from the public internet. For such cases, one could use the `dns-01` challenge.
+This challenge also provides a certain value, but through a DNS record on the
+authority name server of the domain, rather than over a text file.