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

21 passed · 5 suggestions · 0 problems

What is being checked

info: RadioDNS lookup name
08970.8b51.8a0.fm.radiodns.org (frequency 89.70 MHz, PI 8B51, country code 8a0)

1. RadioDNS registration

pass: Registered
08970.8b51.8a0.fm.radiodns.org points to the station's authoritative domain: rdns.wusf.org

2. Service discovery (SRV records)

pass: _radiospi._tcp.rdns.wusf.org published
priority 0, weight 100, port 443 -> spi.wusf.org
pass: _radioepg._tcp.rdns.wusf.org published
priority 0, weight 100, port 80 -> spi.wusf.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://spi.wusf.org/radiodns/spi/3.1/SI.xml answered
84 ms, 3,242 bytes
pass: The HTTPS certificate is valid
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 (3.1)
Validated against the schema published by WorldDAB/RadioDNS.
pass: HTTP endpoint http://spi.wusf.org/radiodns/spi/3.1/SI.xml answered
48 ms, 3,242 bytes
warn: The SI file is served through a redirect
http://spi.wusf.org/radiodns/spi/3.1/SI.xml -> https://spi.wusf.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
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: 1 service in the file
pass: Station found: WUSF 89.7
Matched on bearer fm:8a0.8b51.08970
pass: Short name: WUSF
pass: Medium name: WUSF 89.7
pass: Long name: WUSF 89.7 Your Spot For Local
pass: Short description present
WUSF 89.7 Your Spot For Local
pass: Long description present
WUSF is West central Florida’s NPR station which broadcasts local, statewide and national news.
info: No keywords
Optional.
pass: 1 link
https://www.wusf.org
pass: The <radiodns> element matches the registration
fqdn rdns.wusf.org, service identifier wusf

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

Declared	Actual	Size	Result
?	32x32	802 B	OK https://spi.wusf.org/radiodns/logos/wusf-32x32.png
?	112x32	928 B	OK https://spi.wusf.org/radiodns/logos/wusf-112x32.png
128x128	128x128	2,726 B	OK https://spi.wusf.org/radiodns/logos/wusf-128x128.png
320x240	320x240	5,847 B	OK https://spi.wusf.org/radiodns/logos/wusf-320x240.png
600x600	600x600	13,420 B	OK https://spi.wusf.org/radiodns/logos/wusf-600x600.png

6. Transmitters and streams

pass: FM bearer fm:8a0.8b51.08970
cost 20
info: Other bearer: hd:292.10e02
Not checked by this tool.
pass: Stream OK: https://wusf.streamguys1.com/wusf
audio/aacp, 64 kbps
No offset set (optional): if the stream runs behind the broadcast, an offset in milliseconds lets receivers line the two up.

Check another station Link to this result Download as JSON

Checked 2026-10-21T10:36:33+00:00 (UTC) from the lookup name 08970.8b51.8a0.fm.radiodns.org.

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