How much english-grammar.at is worth?

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domain: english-grammar.at
registrar: World4You Internet Services GmbH ( https://nic.at/registrar/61 )
registrant: <data not disclosed>
tech-c: GG702595-NICAT
tech-c: <data not disclosed>
nserver: ns1.world4you.at
nserver: ns2.world4you.at
changed: 20150803 18:00:23
source: AT-DOM

personname: Domain Admin
organization: World4You Internet Services GmbH
street address: Hafenstrasse 35
postal code: 4020
city: Linz
country: Austria
phone: <data not disclosed>
fax-no: <data not disclosed>
e-mail: <data not disclosed>
nic-hdl: GG702595-NICAT
changed: 20190117 15:19:57
source: AT-DOM