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

16 passed · 5 suggestions · 0 problems

What is being checked

info: RadioDNS lookup name
09870.d5d4.da0.fm.radiodns.org (frequency 98.70 MHz, PI D5D4, country code da0)

1. RadioDNS registration

pass: Registered
09870.d5d4.da0.fm.radiodns.org points to the station's authoritative domain: pub.lkradio.net

2. Service discovery (SRV records)

info: _radiospi._tcp.pub.lkradio.net: not published
pass: _radioepg._tcp.pub.lkradio.net published
priority 10, weight 10, port 80 -> pub.lkradio.net
warn: Only the older _radioepg record is published
What to do: Add _radiospi._tcp.pub.lkradio.net on port 443 as well, so receivers that use HTTPS can find the SI file.
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: HTTP endpoint http://pub.lkradio.net/radiodns/spi/3.1/SI.xml answered
88 ms, 63,523 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.
warn: The file does not strictly follow the official SI schema (3.1)
line 39: Element 'mediaDescription': This element is not expected.
line 75: Element 'mediaDescription': This element is not expected.
line 111: Element 'mediaDescription': This element is not expected.
line 147: Element 'mediaDescription': This element is not expected.
line 183: Element 'mediaDescription': This element is not expected.
line 219: Element 'mediaDescription': This element is not expected.
line 255: Element 'mediaDescription': This element is not expected.
line 291: Element 'mediaDescription': This element is not expected.
line 327: Element 'mediaDescription': This element is not expected.
line 364: Element 'mediaDescription': This element is not expected.
line 400: Element 'mediaDescription': This element is not expected.
line 436: Element 'mediaDescription': This element is not expected.
(16 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: 25 services in the file
pass: Station found: KTOE
Matched on bearer fm:da0.d5d4.09870
pass: Short name: KTOE
pass: Medium name: KTOE
pass: Long name: KTOE - 1420 AM and 102.7 FM
pass: Short description present
Mankato's News, Sports, Talk
pass: Long description present
Home of Mankato's Morning Blend from 5-9am weekdays. Fun, fresh, informative - that's Mankato's AM 1420 and 102.7 FM, KTOE!
pass: Keywords present
KTOE,Talk,Ag,Agriculture,Mankato,Minnesota,Hometown,Classic,Linder,Farm,Morning,Blend,News,Sports,Information,Weather,Radio,AM,FM
pass: 1 link
Homepage https://www.ktoe.com/
pass: The <radiodns> element matches the registration
fqdn pub.lkradio.net, service identifier 31

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.
warn: 5 logos downloaded and checked

Declared	Actual	Size	Result
32x32	32x32	4,081 B	OK http://pub.lkradio.net/radiodns/images/ktoe_32x32.jpeg
112x32	112x32	5,397 B	OK http://pub.lkradio.net/radiodns/images/ktoe_112x32.jpeg
128x128	128x128	9,412 B	OK http://pub.lkradio.net/radiodns/images/ktoe_128x128.jpeg
320x240	320x240	26,724 B	OK http://pub.lkradio.net/radiodns/images/ktoe_320x240.jpeg
600x600	600x600	61,925 B	62 kB (under 50 kB recommended) http://pub.lkradio.net/radiodns/images/ktoe_600x600.jpeg

6. Transmitters and streams

pass: FM bearer fm:da0.d5d4.09870
cost 100
pass: Stream OK: https://ice24.securenetsystems.net/KTOE
audio/aacp, 64 kbps, offset 0 ms

Check another station Link to this result Download as JSON

Checked 2026-10-21T18:31:39+00:00 (UTC) from the lookup name 09870.d5d4.da0.fm.radiodns.org.

Want this set up and kept running for you?

Nexus Broadcast hosts RadioDNS for FM stations: your station information, your logos, the registration request and monitoring, so you do not run any servers. See the hosted RadioDNS plans and prices.