[wp-trac] [WordPress Trac] #35248: WordPress should remove domain trailing dot (as/like it removes "www.")

[WordPress Trac]

#35248: WordPress should remove domain trailing dot (as/like it removes "www.")
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 Reporter:  qdinar       |       Owner:  (none)
     Type:  enhancement  |      Status:  reopened
 Priority:  normal       |   Milestone:  Awaiting Review
Component:  Canonical    |     Version:  4.4
 Severity:  normal       |  Resolution:
 Keywords:               |     Focuses:
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Comment (by qdinar):

 i said:
  i have found out that the trailing dot, ..., really appeared only after
 the standart without trailing dots! it appeared with rfc 1034 in 1987
 i have now searched for it, to provide easier link and quotes. i googled
 "rfc 1034", went to https://tools.ietf.org/html/rfc1034 , and there is
 written :
  Obsoletes: RFCs 882, 883, 973
 and i opened 3 pages, https://tools.ietf.org/html/rfc882 ,
 https://tools.ietf.org/html/rfc883 , https://tools.ietf.org/html/rfc973 .
 and i see that their dates are November 1983, November 1983, January 1986.
 first 2 of them does not have any trailing dots, as i have seen. but third
 has trailing dots.

 so, i was wrong saying "it appeared with rfc 1034 in 1987". trailing dots
 appeared almost 2 years earlier in rfc 973.

 example quotes from rfc 882:
  For example, A.B.C.D is a subdomain of B.C.D, C.D, D, and " ".
  This domain tree has the names " "(the root), COLORS, RED.COLORS,
 BLUE.COLORS, GREEN.COLORS, FLAVORS, NATURAL.FLAVORS,
 CHOCOLATE.NATURAL.FLAVORS, VANILLA.NATURAL.FLAVORS,
 STRAWBERRY.NATURAL.FLAVORS, and TRUTH.
  F.ISI.ARPA    A       IN     10.2.0.52
  The F.ISI.ARPA name server has authority over the ARPA domain, but
 delegates authority over the MIT.ARPA domain to the name server on
 AI.MIT.ARPA.

 example quotes from rfc 883:
  A name server for F.ISI.ARPA , serving as an authority for the ARPA and
 ISI.ARPA domains, might use a boot file and two master files.
  B.ISI.ARPA      9999999 IN      A       10.3.0.52
  10.IN-ADDR           PTR  IN MILNET-GW.ISI.ARPA

 example quotes from rfc 973, there are both versions, without and with
 trailing dot:
  A second difficulty is the restriction that * match a single label.  Thus
 if a name server is looking for RRs for the name A.B.C.D.E.F, it must
 check for *.B.C.D.E.F, *.*.C.D.E.F, *.*.*.D.E.F, etc.
  (e.g. if you can't find an answer at F.ISI.ARPA, look for a RR at
 *.ISI.ARPA)
  ISI.EDU.      10000 NS  X.ISI.EDU.
  99.128.IN-ADDR.ARPA. 2000 NS  Q.ISI.EDU.
  Q.ISI.EDU.           2000 A   <address of Q.ISI.EDU.>

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Ticket URL: <https://core.trac.wordpress.org/ticket/35248#comment:12>
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