Website not resolving by google, but is by others

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tjarr...@gmail.com

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Sep 28, 2018, 10:53:04 AM9/28/18
to public-dns-discuss
Hi 
mali-interest-hub.com can be resolved by a number of open resolvers, but not by google.  This is causing an issue for some of our business users who need access to the site and our proxy servers only use google DNS.

Here are some outputs of successful non-google tests:

C:\Users\tarrandale.ARTS>nslookup -debug mali-interest-hub.com. 4.2.2.1
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        1.2.2.4.in-addr.arpa, type = PTR, class = IN
    ANSWERS:
    ->  1.2.2.4.in-addr.arpa
        name = a.resolvers.level3.net
        ttl = 82812 (23 hours 12 secs)

------------
Address:  4.2.2.1

------------
Got answer:
    HEADER:
        opcode = QUERY, id = 2, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        mali-interest-hub.com, type = A, class = IN
    ANSWERS:
        internet address = 185.38.44.179
        ttl = 14400 (4 hours)

------------
Non-authoritative answer:
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 3, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 0,  authority records = 1,  additional = 0

    QUESTIONS:
        mali-interest-hub.com, type = AAAA, class = IN
    AUTHORITY RECORDS:
        ttl = 86400 (1 day)
        primary name server = ns1.thehostelry.net
        responsible mail addr = admin.thewebhostserver.com
        serial  = 2544798820
        refresh = 3600 (1 hour)
        retry   = 7200 (2 hours)
        expire  = 1209600 (14 days)
        default TTL = 86400 (1 day)

------------
Address:  185.38.44.179

---------------------------------------------------------------------------------------------------------------------------------------------------

Here is the google test:

C:\Users\tarrandale.ARTS>nslookup -debug mali-interest-hub.com. 8.8.8.8
------------
Got answer:
    HEADER:
        opcode = QUERY, id = 1, rcode = NOERROR
        header flags:  response, want recursion, recursion avail.
        questions = 1,  answers = 1,  authority records = 0,  additional = 0

    QUESTIONS:
        8.8.8.8.in-addr.arpa, type = PTR, class = IN
    ANSWERS:
    ->  8.8.8.8.in-addr.arpa
        ttl = 21599 (5 hours 59 mins 59 secs)

------------
Address:  8.8.8.8

DNS request timed out.
    timeout was 2 seconds.
timeout (2 secs)
DNS request timed out.
    timeout was 2 seconds.
timeout (2 secs)
*** Request to google-public-dns-a.google.com timed-out

Alex Dupuy

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Oct 10, 2018, 11:40:48 AM10/10/18
to public-dns-discuss
Our resolvers (especially in Chile, Singapore, and Taiwan) are not getting timely responses from your name servers, which appear to be hosted on Linode VMs:

ns1.thehostelry.net  14399 A    178.79.134.103 ; li190-103.members.linode.com [AS63949]
ns2.thehostelry.net  14399 A    139.162.185.132 ; li1502-132.members.linode.com [AS63949]
ns3.thehostelry.net  14399 A    178.79.142.26 ; li198-26.members.linode.com [AS63949]
ns4.thehostelry.net  14399 A    173.255.228.168 ; li238-168.members.linode.com [AS63949]

Especially since these are all located on a single AS, routing issues could be a single point of failure for your DNS. I strongly recommend that you arrange for secondary DNS coverage from another DNS hosting service, there are several free secondary DNS services, both Hurricane Electric and NS1 are quite good see https://www.keycdn.com/blog/best-free-dns-hosting-providers.

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