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get
/ip
Your IP as plain text
get
/json
Your IP with ISP/ASN/location
post
/api/batch
Look up 1-100 IPs
get
/api/whois/{query}
RDAP WHOIS for a domain, IP or ASN
get
/api/dns/{domain}
DNS records via Cloudflare DoH
get
/api/reverse-dns/{ip}
PTR lookup
get
/api/qr
Static QR code (SVG, or JSON with format=json)
get
/api/timestamp
Current time, or convert a Unix timestamp / date
get
/api/date-calc
Days between dates, or add/subtract days, weeks, months, years
get
/api/timezone
Convert a time between time zones (DST aware)
get
/api/random
Cryptographically secure random integers
get
/api/subnet
IPv4/IPv6 subnet calculator
get
/api/ip/{ip}
Validate and look up an IP
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Your IP with ISP/ASN/location
get
/json
Request
Base URL:
https://www.ferntool.com
URL:
https://www.ferntool.com/json
Auth:
none declared
Response
Info
object
required
ip
string
nullable
isp
string
nullable
city
string
nullable
region
string
nullable
country
string
nullable
timezone
string
nullable
colo
string
nullable
asn
integer
nullable
version
integer
latitude
string
nullable
longitude
string
nullable
Changes
No recorded changes to this operation across all 1 revision of this API.