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 5 suggestions

20 passed · 5 suggestions · 0 problems

What is being checked

info: KVRN-FM - Brightwood, OR
From the NRSC list: 91.10 MHz, PI code 493B, FCC facility 766272.
info: RadioDNS lookup name
09110.493b.4a0.fm.radiodns.org (frequency 91.10 MHz, PI 493B, country code 4a0)

1. RadioDNS registration

pass: Registered
09110.493b.4a0.fm.radiodns.org points to the station's authoritative domain: kpcr.org

2. Service discovery (SRV records)

pass: _radiospi._tcp.kpcr.org published
priority 0, weight 100, port 443 -> kpcr.org
pass: _radioepg._tcp.kpcr.org published
priority 0, weight 100, port 80 -> kpcr.org
info: _radiovis._tcp: published
Slideshow/visuals (STOMP)
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://kpcr.org/radiodns/spi/3.1/SI.xml answered
168 ms, 8,058 bytes
pass: The HTTPS certificate is valid
pass: Content type is application/xml
pass: SI file can be cached (1 hours)
warn: The file does not strictly follow the official SI schema (3.1)
line 2: Element 'serviceInformation', attribute 'creationTime': [facet 'pattern'] The value '2026-10-20T09:16:12.092Z' is not accepted by the pattern '[^\-].+T[^\.]+'.
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://kpcr.org/radiodns/spi/3.1/SI.xml answered
94 ms, 8,058 bytes
warn: The SI file is served through a redirect
http://kpcr.org/radiodns/spi/3.1/SI.xml -> https://kpcr.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 application/xml
pass: SI file can be cached (1 hours)
warn: The file does not strictly follow the official SI schema (3.1)
line 2: Element 'serviceInformation', attribute 'creationTime': [facet 'pattern'] The value '2026-10-20T09:16:12.092Z' is not accepted by the pattern '[^\-].+T[^\.]+'.
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: 5 services in the file
pass: Station found: KVRN 91.1FM
Matched on bearer fm:4a0.493b.09110
pass: Short name: KVRN
pass: Medium name: KVRN 91.1FM
pass: Long name: Pirate Cat Radio — KVRN 91.1FM
pass: Short description present
Independent, community-powered radio — Los Gatos, Santa Cruz & beyond.
info: No long description
Optional (up to 1200 characters).
info: No keywords
Optional.
info: No links
Optional: a website or contact link.
pass: The <radiodns> element matches the registration
fqdn kpcr.org, service identifier kvrn

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	1,453 B	OK https://kpcr.org/img/logo/radiodns/kpcr-32x32.png
112x32	112x32	1,481 B	OK https://kpcr.org/img/logo/radiodns/kpcr-112x32.png
128x128	128x128	7,344 B	OK https://kpcr.org/img/logo/radiodns/kpcr-128x128.png
320x240	320x240	14,900 B	OK https://kpcr.org/img/logo/radiodns/kpcr-320x240.png
600x600	600x600	44,447 B	OK https://kpcr.org/img/logo/radiodns/kpcr-600x600.png

6. Transmitters and streams

pass: FM bearer fm:4a0.493b.09110
cost 0
warn: Stream OK: https://kpcrfm.radioca.st/stream.mp3
audio/mpeg, 320 kbps
The file says 128 kbps but the stream reports 320 kbps.
No offset set (optional): if the stream runs behind the broadcast, an offset in milliseconds lets receivers line the two up.

7. Slideshow (optional)

warn: Only the older slideshow transports are published
The current standard (ETSI TS 101 499 v3.2.1) requires the Server-sent Events transport; STOMP (_radiovis) and HTTP (_radiovis-http) are deprecated.
What to do: Publish _radiopush._tcp.kpcr.org (priority 0, weight 100, port 443) pointing at a server that implements /radiodns/push/3/<topic>.

Check another station Link to this result Download as JSON

Checked 2026-10-20T09:16:11+00:00 (UTC) from the lookup name 09110.493b.4a0.fm.radiodns.org.

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