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 4 suggestions

24 passed · 4 suggestions · 0 problems

What is being checked

info: RadioDNS lookup name
09050.9995.9a0.fm.radiodns.org (frequency 90.50 MHz, PI 9995, country code 9a0)

1. RadioDNS registration

pass: Registered
09050.9995.9a0.fm.radiodns.org points to the station's authoritative domain: kutx.org

2. Service discovery (SRV records)

pass: _radiospi._tcp.kutx.org published
priority 0, weight 0, port 443 -> kutx.org
pass: _radioepg._tcp.kutx.org published
priority 0, weight 0, port 80 -> kutx.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://kutx.org/radiodns/spi/3.1/SI.xml answered
54 ms, 15,440 bytes
pass: The HTTPS certificate is valid
pass: Content type is text/xml
Accepted. (RadioDNS's own guide shows 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 (3.1)
Validated against the schema published by WorldDAB/RadioDNS.
pass: HTTP endpoint http://kutx.org/radiodns/spi/3.1/SI.xml answered
64 ms, 15,440 bytes
warn: The SI file is served through a redirect
http://kutx.org/radiodns/spi/3.1/SI.xml -> https://kutx.org/radiodns/spi/3.1/SI.xml
What to do: Some receivers do not follow redirects. Serve the file directly at this address if you can.
pass: Content type is text/xml
Accepted. (RadioDNS's own guide shows 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 (3.1)
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

info: 6 services in the file
pass: Station found: KUT 90.5 FM
Matched on bearer fm:9a0.9995.09050
pass: Short name: KUTFM
pass: Medium name: KUT 90.5 FM
pass: Long name: KUT 90.5 AUSTIN FM
pass: Short description present
KUT 90.5 Austin's NPR Station
info: No long description
Optional (up to 1200 characters).
pass: Keywords present
KUT, Austin, TX, breaking, news, traffic, weather, NPR, business, local, politics
pass: 7 links
Homepage https://www.kut.org/
Facebook https://www.facebook.com/kutradio
Instagram https://www.instagram.com/kut_austin
X https://x.com/kut
Youtube https://www.youtube.com/@kutaustintx
Flipboard https://flipboard.com/@KUTAustin
Linkedin https://www.linkedin.com/company/kut-radio
pass: The <radiodns> element matches the registration
fqdn kutx.org, service identifier kut

5. Logos

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

Declared	Actual	Size	Result
32x32	32x32	3,173 B	OK https://kutx.org/radiodns/KUT/KUT_32x32_v1.jpg
112x32	112x32	5,454 B	OK https://kutx.org/radiodns/KUT/KUT_112x32_v1.jpg
128x128	128x128	8,941 B	OK https://kutx.org/radiodns/KUT/KUT_128x128_v1.jpg
320x240	320x240	23,628 B	OK https://kutx.org/radiodns/KUT/KUT_320x240_v1.jpg
600x600	600x600	41,690 B	OK https://kutx.org/radiodns/KUT/KUT_600x600_v1.jpg

6. Transmitters and streams

info: Other bearer: hd:292.1040d
Not checked by this tool.
pass: FM bearer fm:9a0.9995.09050
cost 31
warn: Stream OK: https://streams.kut.org/4426_56.aac
audio/aacp, 64 kbps, offset 25000 ms
The file says 56 kbps but the stream reports 64 kbps.
pass: Stream OK: https://streams.kut.org/4426_128.mp3
audio/mpeg, 128 kbps, offset 25000 ms
pass: Stream OK: https://streams.kut.org/4426_192.aac
audio/aac, 192 kbps, offset 25000 ms

Check another station Link to this result Download as JSON

Checked 2026-10-21T14:15:31+00:00 (UTC) from the lookup name 09050.9995.9a0.fm.radiodns.org.

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