// our connection coalescing requirements are met. See also:
    // https://hpbn.co/optimizing-application-delivery/#eliminate-domain-sharding
    // https://daniel.haxx.se/blog/2016/08/18/http2-connection-coalescing/

    // 1. This connection must be HTTP/2.
    if (http2Connection == null) return false

    // 2. The routes must share an IP address.

http:foo.com  s:http h:example.org p:/foo/foo.com
\t\s\s\s:foo.com\s\s\s\n  s:http h:example.org p:/foo/:foo.com
\sfoo.com\s\s  s:http h:example.org p:/foo/foo.com
a:\t\sfoo.com  s:a p:\sfoo.com
http://f:21/\sb\s?\sd\s#\se\s  s:http h:f port:21 p:/%20b%20 q:?%20d%20 f:#\se
http://f:/c  s:http h:f p:/c
http://f:0/c  s:http h:f port:0 p:/c
http://f:00000000000000/c  s:http h:f port:0 p:/c
http://f:00000000000000000000080/c  s:http h:f p:/c
http://f:b/c
http://f:\s/c

scienceandindustry.museum sciencecenter.museum sciencecenters.museum sciencehistory.museum sciences.museum sciencesnaturelles.museum scientist.aero scot scotland.museum scrapper-site.net scrapping.cc scrysec.com sd sd.cn sd.us sdn.gov.pl sdscloud.pl se se.eu.org se.gov.br se.leg.br se.net seaport.museum search seat sebastopol.ua sec.ps secaas.hk secret.jp secure security securitytactics.com seek seg.br seidat.net seihi.nagasaki.jp seika.kyoto.jp seiro.niigata.jp seirou.niigata.jp seiyo.ehime.jp sejny.pl sekd1.beebyteapp.io...

tv.sd
gov.sd
info.sd

// se : https://en.wikipedia.org/wiki/.se
// Submitted by registry <patrik.wallstrom@iis.se>
se
a.se
ac.se
b.se
bd.se
brand.se
c.se
d.se
e.se
f.se
fh.se
fhsk.se
fhv.se
g.se
h.se
i.se
k.se
komforb.se
kommunalforbund.se
komvux.se
l.se
lanbib.se
m.se
n.se
naturbruksgymn.se
o.se
org.se

32DC          ; mapped                 ; 30B9          # 1.1  CIRCLED KATAKANA SU
32DD          ; mapped                 ; 30BB          # 1.1  CIRCLED KATAKANA SE
32DE          ; mapped                 ; 30BD          # 1.1  CIRCLED KATAKANA SO
32DF          ; mapped                 ; 30BF          # 1.1  CIRCLED KATAKANA TA