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openapi: 3.2.0
info:
title: FernTool Network Is It Down API
version: 0.14.10
description: 'Free network API: your IP, IP geolocation with timezone and VPN/Tor/datacenter flags, batch lookup, RDAP WHOIS, DNS, reverse DNS, subnet calculator, timestamps, date maths, time zones, random numbers and random picks. No key. CORS *. Please keep under ~40 network lookups/minute.'
servers:
- url: https://www.ferntool.com
tags:
- name: Is It Down
paths:
/api/is-it-down:
get:
operationId: isItDown
summary: Is a website up?
parameters:
- name: url
in: query
required: true
description: Website address, e.g. example.com
schema:
type: string
responses:
'200':
description: verdict up/down, reason, http_status, response_ms
content:
application/json:
schema:
type: object
'400':
description: Not a public website address
'429':
description: Rate limited
tags:
- Is It Down