Is your station ready for hybrid radio?

What is being checked

• i
  info: WNPR - MERIDEN, CT

  From the NRSC list: 90.50 MHz, PI code 7893, FCC facility 13627.
• i
  info: RadioDNS lookup name

  09050.7893.7a0.fm.radiodns.org (frequency 90.50 MHz, PI 7893, country code 7a0)

1. RadioDNS registration

• ✓
  pass: Registered

  09050.7893.7a0.fm.radiodns.org points to the station's authoritative domain: radiodns.prss.org

2. Service discovery (SRV records)

• i
  info: _radiospi._tcp.radiodns.prss.org: not published
• ✓
  pass: _radioepg._tcp.radiodns.prss.org published

  priority 10, weight 60, port 80 -> radiodns.prss.org [target is an alias of contentdepot.prss.org]
• !
  warn: SRV target radiodns.prss.org 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.prss.org its own A/AAAA record (or point the SRV record at the real host name).
• !
  warn: Only the older _radioepg record is published

  What to do: Add _radiospi._tcp.radiodns.prss.org 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://radiodns.prss.org/radiodns/spi/3.1/SI.xml answered

  367 ms, 261,736 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.
• ✓
  pass: The file follows the official SI schema (current (3.4/3.5))

  Validated against the schema published by WorldDAB/RadioDNS.

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

4. Your station in the file

• i
  info: 76 services in the file
• ✓
  pass: Station found: CT Public

  Matched on bearer fm:7a0.7893.09050
• ✓
  pass: Short name: WNPR
• ✓
  pass: Medium name: CT Public
• ✓
  pass: Long name: Connecticut Public
• ✓
  pass: Short description present

  Our MISSION: to Inform, Educate and Inspire CT. Connecting and empowering them through outstanding journalism, storytelling, education and experiences.
• ✓
  pass: Long description present

  Connecticut Public is Connecticut’s only state-wide, community-supported public media service. We are a member station of national public media services PBS and NPR, and parent company for two television stations: Con...
• i
  info: No keywords

  Optional.
• ✓
  pass: 1 link

  https://www.ctpublic.org/
• ✓
  pass: The <radiodns> element matches the registration

  fqdn radiodns.prss.org, service identifier 000000000000138f

5. Logos

• ✓
  pass: All five standard logo sizes are listed
• !
  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.
• i
  info: Logo checks limited

  Only the first logos were fetched.
• !
  warn: 12 logos downloaded and checked

Preview	Declared	Actual	Size	Result
	86x48	86x48	916 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835094.png
	160x90	160x90	2,230 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835098.png
–	1400x1400	1400x1400	301,925 B	302 kB (under 50 kB recommended) http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835054.png
	220x48	220x48	1,008 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835086.png
	170x170	170x170	6,581 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835050.png
	1024x768	1024x768	115,647 B	116 kB (under 50 kB recommended) http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835066.png
	112x32	112x32	555 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835078.png
	288x162	288x162	6,764 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835070.png
–	1920x1080	1920x1080	212,749 B	213 kB (under 50 kB recommended) http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835090.png
	32x32	32x32	502 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835058.png
	600x600	600x600	70,176 B	70 kB (under 50 kB recommended) http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835062.png
	74x41	74x41	654 B	OK http://radiodns.prss.org/radiodns/spi/3.3/si/img/CT_Public_P-Head_186835102.png

6. Transmitters and streams

• i
  info: Other bearer: fm:5a0.5f9c.08850

  Not checked by this tool.
• i
  info: Other bearer: fm:7a0.7d5b.08910

  Not checked by this tool.
• i
  info: Other bearer: hd:292.03532

  Not checked by this tool.
• !
  warn: Stream OK: https://26373.live.streamtheworld.com/WNPRFM.mp3?ttag=website-ct_public-grove&amp;dist=website-ct_public-grove

  audio/mpeg, 64 kbps
  The file says audio/aacp but the stream answers audio/mpeg.
  The file says 256 kbps but the stream reports 64 kbps.
  No offset set (optional): if the stream runs behind the broadcast, an offset in milliseconds lets receivers line the two up.
• i
  info: Other bearer: fm:8a0.82b2.09130

  Not checked by this tool.
• ✓
  pass: FM bearer fm:7a0.7893.09050

  cost 20
• i
  info: Other bearer: hd:292.0353b

  Not checked by this tool.