Thanks for these informations.
This is a limitation of .PL Whois server.

The number of queries, sent to the WHOIS database from a single IP address, amounts to 100 per day though WWW and on port 43. When the limit has been exceeded, the requests are not responded and it is necessary to wait until credits for querying are restored. Credit for each successive query is granted every ca. 15 minutes.

We are using several IP for our WHOIS. This Whois server seems to be restricted.
I’m searching an other whois server.

Hello,

Please find below some last requests done today in 10 min intervals.
Even on a test endpoint panel i am receiving this info, please take a look at screen

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{“server”:“epsilon”,“name”:“gsk.com.pl”,“idnName”:“gsk.com.pl”,“status”:null,“nameserver”:null,“ips”:“91.237.19.62”,“created”:null,“changed”:null,“expires”:null,“registered”:true,“dnssec”:true,“whoisserver”:“whois.dns.pl”,“contacts”:[],“registrar”:null,“rawdata”:[“request limit exceeded\n”],“network”:null,“exception”:null,“parsedContacts”:false,“template”:{“whois.dns.pl”:“pl”}}
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{“server”:“epsilon”,“name”:“jpf.com.pl”,“idnName”:“jpf.com.pl”,“status”:null,“nameserver”:null,“ips”:“94.152.148.166”,“created”:null,“changed”:null,“expires”:null,“registered”:true,“dnssec”:true,“whoisserver”:“whois.dns.pl”,“contacts”:[],“registrar”:null,“rawdata”:[“request limit exceeded\n”],“network”:null,“exception”:null,“parsedContacts”:false,“template”:{“whois.dns.pl”:“pl”}}
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{“server”:“alpha”,“name”:“kam-przyczepki.pl”,“idnName”:“kam-przyczepki.pl”,“status”:null,“nameserver”:[“ns1.kylos.pl”,“ns2.kylos.pl”],“ips”:“195.162.24.50”,“created”:“2009.03.30 16:44:09”,“changed”:“2021.03.06 08:42:02”,“expires”:“2022.03.30 16:44:09”,“registered”:true,“dnssec”:false,“whoisserver”:“whois.dns.pl”,“contacts”:[],“registrar”:{“id”:null,“name”:“home.pl S.A.”,“email”:null,“url”:null},“rawdata”:["\nDOMAIN NAME: kam-przyczepki.pl\nregistrant type: organization\nnameservers: ns1.kylos.pl. [195.162.24.10]\n ns2.kylos.pl. [193.107.88.10]\ncreated: 2009.03.30 16:44:09\nlast modified: 2021.03.06 08:42:02\nrenewal date: 2022.03.30 16:44:09\n\nno option\n\ndnssec: Unsigned\n\n\nREGISTRAR:\nhome.pl S.A.\nul. Zbo\u017cowa 4\n70-653 Szczecin\nPolska/Poland\n+48.914325555\n+48.504502500\nhttps://home.pl/kontakt\n\nWHOIS database responses: https://dns.pl/en/whois\n\nWHOIS displays data with a delay not exceeding 15 minutes in relation to the .pl Registry system\n"],“network”:null,“exception”:null,“parsedContacts”:false,“template”:{“whois.dns.pl”:“pl”}}
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{“server”:“beta”,“name”:“kosciol.pl”,“idnName”:“kosciol.pl”,“status”:null,“nameserver”:null,“ips”:“82.96.114.121”,“created”:null,“changed”:null,“expires”:null,“registered”:true,“dnssec”:true,“whoisserver”:“whois.dns.pl”,“contacts”:[],“registrar”:null,“rawdata”:[“request limit exceeded\n”],“network”:null,“exception”:null,“parsedContacts”:false,“template”:{“whois.dns.pl”:“pl”}}
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{“server”:“iota”,“name”:“kuki.pl”,“idnName”:“kuki.pl”,“status”:null,“nameserver”:null,“ips”:“13.226.159.110”,“created”:null,“changed”:null,“expires”:null,“registered”:true,“dnssec”:true,“whoisserver”:“whois.dns.pl”,“contacts”:[],“registrar”:null,“rawdata”:[“request limit exceeded\n”],“network”:null,“exception”:null,“parsedContacts”:false,“template”:{“whois.dns.pl”:“pl”}}

Hi,

What’s your offer ?
Could you attach a screen please ?