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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 3 suggestions

17 passed · 3 suggestions · 0 problems

What is being checked

info: WTKU-FM - PETERSBURG, NJ
From the NRSC list: 98.30 MHz, PI code 87EC, FCC facility 3139.
info: RadioDNS lookup name
09830.87ec.8a0.fm.radiodns.org (frequency 98.30 MHz, PI 87EC, country code 8a0)

1. RadioDNS registration

pass: Registered
09830.87ec.8a0.fm.radiodns.org points to the station's authoritative domain: longport_media_llc.radiodns.metadata.radio

2. Service discovery (SRV records)

info: _radiospi._tcp.longport_media_llc.radiodns.metadata.radio: not published
pass: _radioepg._tcp.longport_media_llc.radiodns.metadata.radio published
priority 0, weight 5, port 80 -> longport_media_llc.radiodns.metadata.radio
warn: Only the older _radioepg record is published
What to do: Add _radiospi._tcp.longport_media_llc.radiodns.metadata.radio 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://longport_media_llc.radiodns.metadata.radio/radiodns/spi/3.1/SI.xml answered
282 ms, 7,707 bytes
pass: Content type is application/xml
pass: SI file can be cached (1 hours)
pass: The file follows the official SI schema (current (3.4/3.5))
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: WTKU-FM
Matched on bearer fm:8a0.87ec.09830
pass: Short name: WTKU-FM
pass: Medium name: WTKU-FM
pass: Long name: WTKU-FM
pass: Short description present
South Jersey's Greatest Hits
pass: Long description present
KOOL 98-3 Playing South Jersey's Greatest Hits
pass: Keywords present
Classic Hits
pass: 2 links
homepageUri https://kool983.com
addressUri postal:WTKU-FM%20/1601%20New%20Road/Linwood/08221
pass: The <radiodns> element matches the registration
fqdn longport_media_llc.radiodns.metadata.radio, service identifier longportmediallc

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.
pass: Logos can be cached (1 days)
info: Logo checks limited
Only the first logos were fetched.
warn: 12 logos downloaded and checked

Declared	Actual	Size	Result
?	32x32	1,240 B	OK http://metadata.radio/__logos/longport_media_llc/1/32x32.png?hash=c42cdef774c06e021354dc88f7b72001
?	112x32	2,570 B	OK http://metadata.radio/__logos/longport_media_llc/1/112x32.png?hash=c42cdef774c06e021354dc88f7b72001
74x41	74x41	1,798 B	OK http://metadata.radio/__logos/longport_media_llc/1/74x41.png?hash=c42cdef774c06e021354dc88f7b72001
86x48	86x48	1,928 B	OK http://metadata.radio/__logos/longport_media_llc/1/86x48.png?hash=c42cdef774c06e021354dc88f7b72001
128x128	128x128	2,717 B	OK http://metadata.radio/__logos/longport_media_llc/1/128x128.png?hash=c42cdef774c06e021354dc88f7b72001
160x90	160x90	3,167 B	OK http://metadata.radio/__logos/longport_media_llc/1/160x90.png?hash=c42cdef774c06e021354dc88f7b72001
288x162	288x162	7,426 B	OK http://metadata.radio/__logos/longport_media_llc/1/288x162.png?hash=c42cdef774c06e021354dc88f7b72001
300x300	300x300	7,486 B	OK http://metadata.radio/__logos/longport_media_llc/1/300x300.png?hash=c42cdef774c06e021354dc88f7b72001
320x240	320x240	8,869 B	OK http://metadata.radio/__logos/longport_media_llc/1/320x240.png?hash=c42cdef774c06e021354dc88f7b72001
600x600	600x600	28,530 B	OK http://metadata.radio/__logos/longport_media_llc/1/600x600.png?hash=c42cdef774c06e021354dc88f7b72001
1200x1200	1200x1200	79,559 B	80 kB (under 50 kB recommended) http://metadata.radio/__logos/longport_media_llc/1/1200x1200.png?hash=c42cdef774c06e021354dc88f7b72001
1400x1400	1400x1400	104,363 B	104 kB (under 50 kB recommended) http://metadata.radio/__logos/longport_media_llc/1/1400x1400.png?hash=c42cdef774c06e021354dc88f7b72001

6. Transmitters and streams

pass: FM bearer fm:8a0.87ec.09830
cost 5, offset 0 ms
info: No internet stream listed
Optional, but without one receivers cannot switch from FM to an online stream.

Check another station Link to this result Download as JSON

Checked 2026-10-19T22:12:17+00:00 (UTC) from the lookup name 09830.87ec.8a0.fm.radiodns.org.

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