Is your station ready for hybrid radio?

What is being checked

• i
  info: WCXP-LP - CHICAGO, IL

  From the NRSC list: 107.10 MHz, PI code 5C55, FCC facility 192383.
• i
  info: RadioDNS lookup name

  10710.5c55.5a0.fm.radiodns.org (frequency 107.10 MHz, PI 5C55, country code 5a0)

1. RadioDNS registration

• ✓
  pass: Registered

  10710.5c55.5a0.fm.radiodns.org points to the station's authoritative domain: rdns.mylpfm.com

2. Service discovery (SRV records)

• i
  info: _radiospi._tcp.rdns.mylpfm.com: not published
• ✓
  pass: _radioepg._tcp.rdns.mylpfm.com published

  priority 10, weight 100, port 80 -> rdns.mylpfm.com
• !
  warn: Only the older _radioepg record is published

  What to do: Add _radiospi._tcp.rdns.mylpfm.com on port 443 as well, so receivers that use HTTPS can find the SI file.
• 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: HTTP endpoint http://rdns.mylpfm.com/radiodns/spi/3.1/SI.xml answered

  87 ms, 49,624 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 23: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 58: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 91: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 127: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 169: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 205: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 239: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 274: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 314: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 347: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 385: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  line 421: Element 'mediaDescription': This element is not expected. Expected is one of ( keywords, link, bearer, radiodns, geolocation, serviceGroupMember, ##other* ).
  (12 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: 24 services in the file
• ✓
  pass: Station found: CHIRP Radio

  Matched on bearer fm:5a0.5c55.10710
• ✓
  pass: Short name: WCXP-LP
• ✓
  pass: Medium name: CHIRP Radio
• ✓
  pass: Long name: CHIRP Radio
• ✓
  pass: Short description present

  Great independent music, no commercials, real DJs
• ✓
  pass: Long description present

  CHIRP is Chicago's independent community radio station, volunteer-driven and listener-supported. CHIRP is live, local, and commercial-free with passionate, curious hosts programming their shows with a mix of independe...
• ✓
  pass: Keywords present

  Chicago, indie, independent, non-commercial, CHIRP, radio
• ✓
  pass: 3 links

  Station Website https://chirpradio.org/
  Our Facebook Page https://www.facebook.com/CHIRPradio
  Our Twitter Page https://twitter.com/CHIRPradio
• ✓
  pass: The <radiodns> element matches the registration

  fqdn rdns.mylpfm.com, service identifier 192383-1

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.
• !
  warn: Logos have 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.
• ✓
  pass: 5 logos downloaded and checked

Preview	Declared	Actual	Size	Result
	?	32x32	1,415 B	OK https://rdns.mylpfm.com/images/192/192383-1-32-32.jpeg
	?	112x32	3,755 B	OK https://rdns.mylpfm.com/images/192/192383-1-112-32.jpeg
	128x128	128x128	5,452 B	OK https://rdns.mylpfm.com/images/192/192383-1-128-128.jpg
	320x240	320x240	34,992 B	OK https://rdns.mylpfm.com/images/192/192383-1-320-240.jpg
	600x600	600x600	30,111 B	OK https://rdns.mylpfm.com/images/192/192383-1-600-600.jpg

6. Transmitters and streams

• ✓
  pass: FM bearer fm:5a0.5c55.10710

  cost 2, offset 0 ms
• i
  info: No internet stream listed

  Optional, but without one receivers cannot switch from FM to an online stream.