Ignoring the fact that Akamai IPv6 is broken on random nodes, thus you
get either a working response or not from the same IP as some of the
nodes are borked and thus just hang the connection.. (could be pmtu,
hard to say without peeking inside the cluster).... see amongst others:
https://www.sixxs.net/forum/?msg=general-12378937
But on a non-IPv4 note for once, I just noticed this funny one:
$ telnet -4 www.akamai.com 80
Trying 95.101.216.85...
Connected to e8921.dscx.akamaiedge.net.
Escape character is '^]'.
GET /html/technology/nocc.html HTTP/1.1
Host: www.akamai.com
HTTP/1.1 302 Moved Temporarily
Content-Length: 153
Content-Type: text/html
Location: /esi/ui/html_head.html
Location: /esi/ui/header.html
Location: /esi/ui/technology-nav.html
Location: /esi/ui/footer.html
Location: /esi/ui/footer_js.html
Location: /esi/webtrends.html
Location: /esi/google-tag-manager.html
Set-Cookie: cm_sessionid=47d4fed5001b00007c7457540ff80400b7650000; path=/
Set-Cookie: x_hd=
Set-Cookie: x_hd=
Set-Cookie: x_hd=
Set-Cookie: x_hd=
Set-Cookie: x_hd=
Set-Cookie: x_hd=
Set-Cookie: x_hd=
ETag: "4c08f-206b-50353850ddb40"
Cache-Control: max-age=70369
Connection: keep-alive
<HTML>
<HEAD>
<TITLE>Error Page</TITLE>
</HEAD>
<BODY>
An error (302 Moved Temporarily) has occured in response to this request.
</BODY>
</HTML>
Connection closed by foreign host.
Multiple Location: headers, really? and for head/footer/etc? Really? 
Chrome reports: