Is your station ready for hybrid radio?

What is being checked

• i
  info: KULO - ALEXANDRIA, MN

  From the NRSC list: 94.30 MHz, PI code 45FC, FCC facility 23091.
• i
  info: RadioDNS lookup name

  09430.45fc.4a0.fm.radiodns.org (frequency 94.30 MHz, PI 45FC, country code 4a0)

1. RadioDNS registration

• ✓
  pass: Registered

  09430.45fc.4a0.fm.radiodns.org points to the station's authoritative domain: radiodns.hubbardradio.com

2. Service discovery (SRV records)

• ✓
  pass: _radiospi._tcp.radiodns.hubbardradio.com published

  priority 10, weight 5, port 443 -> radiodns.hubbardradio.com [target is an alias of dcmqfs8ti5c7m.cloudfront.net]
• !
  warn: SRV target radiodns.hubbardradio.com is a CNAME alias

  DNS rules (RFC 2782) say an SRV record should point at a name that has address records directly, not at an alias. Many resolvers cope, some do not.

  What to do: Give radiodns.hubbardradio.com its own A/AAAA record (or point the SRV record at the real host name).
• ✓
  pass: _radioepg._tcp.radiodns.hubbardradio.com published

  priority 10, weight 5, port 80 -> radiodns.hubbardradio.com [target is an alias of dcmqfs8ti5c7m.cloudfront.net]
• !
  warn: SRV target radiodns.hubbardradio.com is a CNAME alias

  DNS rules (RFC 2782) say an SRV record should point at a name that has address records directly, not at an alias. Many resolvers cope, some do not.

  What to do: Give radiodns.hubbardradio.com its own A/AAAA record (or point the SRV record at the real host name).
• i
  info: _radiovis._tcp: not published

  Slideshow/visuals (STOMP) - optional, only needed for a live slideshow service.
• i
  info: _radiopush._tcp: not published

  Slideshow/visuals (Server-Sent Events) - optional, only needed for a live slideshow service.
• i
  info: _radiovis-http._tcp: not published

  Slideshow/visuals (HTTP) - optional, only needed for a live slideshow service.

3. Service Information file (SI.xml)

• ✓
  pass: HTTPS endpoint https://radiodns.hubbardradio.com/radiodns/spi/3.1/SI.xml answered

  74 ms, 174,831 bytes
• ✓
  pass: The HTTPS certificate is valid
• ✓
  pass: Content type is application/xml
• !
  warn: SI file has no caching headers

  What to do: Add Cache-Control: max-age (for example 86400 for 24 hours). Without it, receivers guess - and some ignore the content.
• !
  warn: The file does not strictly follow the official SI schema (3.1)

  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  (62 more not shown)

  What to do: Many receivers are forgiving, but strict ones may ignore a file that does not match the schema. RadioDNS's SI tool (si.radiodns.org) can rebuild a correct file.
• ✓
  pass: HTTP endpoint http://radiodns.hubbardradio.com/radiodns/spi/3.1/SI.xml answered

  10 ms, 174,831 bytes
• ✓
  pass: Content type is application/xml
• !
  warn: SI file has no caching headers

  What to do: Add Cache-Control: max-age (for example 86400 for 24 hours). Without it, receivers guess - and some ignore the content.
• !
  warn: The file does not strictly follow the official SI schema (3.1)

  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  line 2: Element 'radiodns': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
  (62 more not shown)

  What to do: Many receivers are forgiving, but strict ones may ignore a file that does not match the schema. RadioDNS's SI tool (si.radiodns.org) can rebuild a correct file.

Guides: Make an SI file accessible (PDF) · Build an SI file with RadioDNS's tool

4. Your station in the file

• i
  info: 74 services in the file
• ✓
  pass: Station found: KULO

  Matched on bearer fm:4a0.45fc.09430
• ✓
  pass: Short name: KULO
• ✓
  pass: Medium name: KULO
• ✓
  pass: Long name: KULO - Cool 94.3
• ✓
  pass: Short description present

  The Lakes Greatest Hits
• ✓
  pass: Long description present

  The Lakes Greatest Hits
• ✓
  pass: Keywords present

  cool 94.3, KULO, Mike Ryan, Amy Foxx, The Lakes Greatest Hits, Alexandria, Classic Hits
• ✓
  pass: 1 link

  Homepage https://www.cool943.com/
• ✓
  pass: The <radiodns> element matches the registration

  fqdn radiodns.hubbardradio.com, service identifier nmnkulo33

5. Logos

• !
  warn: Not all five standard logo sizes are listed

  Missing: 32x32, 112x32

  What to do: RadioDNS asks for either no logos or at least the five standard sizes, so every receiver finds one that fits.
• ✕
  fail: 4 of 4 logos have problems

  See the table below.

  What to do: Every logo URL must return a real PNG or JPEG of the declared size.

6. Transmitters and streams

• ✓
  pass: FM bearer fm:4a0.45fc.09430

  cost 10, offset 0 ms
• i
  info: Other bearer: hd:292.05a33

  Not checked by this tool.
• !
  warn: Stream OK: https://playerservices.streamtheworld.com/api/livestream-redirect/KULOFMAAC.aac?dist=hubbard&source=hubbard-web&ttag=radiodns

  audio/aacp, 64 kbps, offset 25000 ms
  The file says audio/aac but the stream answers audio/aacp.
• ✓
  pass: Stream OK: https://playerservices.streamtheworld.com/api/livestream-redirect/KULOFM.mp3?dist=hubbard&source=hubbard-web&ttag=radiodns

  audio/mpeg, 96 kbps, offset 25000 ms