Is your station ready for hybrid radio?

RadioDNS lets connected car radios and receivers show your logo, name and stream. This free checker follows the same steps a receiver does and tells you, in plain English, what works and what to fix.

Working, with 6 suggestions

19 passed · 6 suggestions · 0 problems

What is being checked

info: RadioDNS lookup name
08810.959f.9a0.fm.radiodns.org (frequency 88.10 MHz, PI 959F, country code 9a0)

1. RadioDNS registration

pass: Registered
08810.959f.9a0.fm.radiodns.org points to the station's authoritative domain: wtmdradio.org

2. Service discovery (SRV records)

pass: _radiospi._tcp.wtmdradio.org published
priority 0, weight 0, port 443 -> wtmdradio.org
pass: _radioepg._tcp.wtmdradio.org published
priority 0, weight 0, port 80 -> wtmdradio.org
info: _radiovis._tcp: not published
Slideshow/visuals (STOMP) - optional, only needed for a live slideshow service.
info: _radiopush._tcp: not published
Slideshow/visuals (Server-Sent Events) - optional, only needed for a live slideshow service.
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://wtmdradio.org/radiodns/spi/3.1/SI.xml answered
104 ms, 15,967 bytes
pass: The HTTPS certificate is valid
pass: Content type is application/xml
warn: SI file is cached for only 600 seconds
What to do: Use at least an hour; RadioDNS suggests about 24 hours for the SI file and longer for logos.
warn: The file does not strictly follow the official SI schema (3.1)
line 37: Element 'mediaDescription': This element is not expected.
line 77: Element 'mediaDescription': This element is not expected.
line 140: Element 'point': '39.331496,' is not a valid value of the atomic type 'xs:double'.
line 140: Element 'point': '39.331496, -76.657470' is not a valid value of the list type 'doubleListType'.
line 142: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 180: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 217: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 253: Element 'point': '39.492045,' is not a valid value of the atomic type 'xs:double'.
line 253: Element 'point': '39.492045, -77.499709' is not a valid value of the list type 'doubleListType'.
line 255: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 291: Element 'point': '38.327615,' is not a valid value of the atomic type 'xs:double'.
line 291: Element 'point': '38.327615, -75.196855' is not a valid value of the list type 'doubleListType'.
(1 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://wtmdradio.org/radiodns/spi/3.1/SI.xml answered
61 ms, 15,967 bytes
pass: Content type is application/xml
warn: SI file is cached for only 600 seconds
What to do: Use at least an hour; RadioDNS suggests about 24 hours for the SI file and longer for logos.
warn: The file does not strictly follow the official SI schema (3.1)
line 37: Element 'mediaDescription': This element is not expected.
line 77: Element 'mediaDescription': This element is not expected.
line 140: Element 'point': '39.331496,' is not a valid value of the atomic type 'xs:double'.
line 140: Element 'point': '39.331496, -76.657470' is not a valid value of the list type 'doubleListType'.
line 142: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 180: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 217: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 253: Element 'point': '39.492045,' is not a valid value of the atomic type 'xs:double'.
line 253: Element 'point': '39.492045, -77.499709' is not a valid value of the list type 'doubleListType'.
line 255: Element 'bearer': This element is not expected. Expected is one of ( serviceGroupMember, ##other* ).
line 291: Element 'point': '38.327615,' is not a valid value of the atomic type 'xs:double'.
line 291: Element 'point': '38.327615, -75.196855' is not a valid value of the list type 'doubleListType'.
(1 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

info: 7 services in the file
pass: Station found: WYPR 88.1 FM
Matched on bearer fm:9a0.959f.08810
pass: Short name: WYPR
pass: Medium name: WYPR 88.1 FM
info: No long name
Optional.
pass: Short description present
Baltimore's NPR News Station
info: No long description
Optional (up to 1200 characters).
pass: Keywords present
WYPR, Baltimore, MD, breaking, news, traffic, weather, NPR, business, local, politics
pass: 5 links
Homepage https://wypr.org
Instagram https://www.instagram.com/wypr881fm/
Facebook https://www.facebook.com/WYPR881FM/
YouTube https://www.youtube.com/user/WYPR881FMBaltimore
TikTok https://www.tiktok.com/@wypr881fm
pass: The <radiodns> element matches the registration
fqdn wtmdradio.org, service identifier wypr

5. Logos

pass: All five standard logo sizes are listed
pass: Logos can be cached (365 days)
warn: 5 logos downloaded and checked

Declared	Actual	Size	Result
32x32	32x32	6,665 B	OK https://wtmdradio.org/radiodns/WYPR_32x32_v1.jpeg
112x32	112x32	9,923 B	OK https://wtmdradio.org/radiodns/WYPR_112x32_v1.jpeg
128x128	128x128	19,301 B	OK https://wtmdradio.org/radiodns/WYPR_128x128_v1.jpeg
320x240	320x240	33,778 B	OK https://wtmdradio.org/radiodns/WYPR_320x240_v1.jpeg
600x600	600x600	92,028 B	92 kB (under 50 kB recommended) https://wtmdradio.org/radiodns/WYPR_600x600_v1.jpeg

6. Transmitters and streams

pass: FM bearer fm:9a0.959f.08810
cost 31
info: Other bearer: hd:292.100d9
Not checked by this tool.
warn: Stream OK: https://wtmd-ice.streamguys1.com/wypr-1
audio/aacp, 64 kbps, offset 25000 ms
The file says audio/aac but the stream answers audio/aacp.
pass: Stream OK: https://wtmd-ice.streamguys1.com/wypr-1-mp3
audio/mpeg, 128 kbps, offset 25000 ms

Check another station Link to this result Download as JSON

Checked 2026-10-16T15:55:43+00:00 (UTC) from the lookup name 08810.959f.9a0.fm.radiodns.org.

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