---
title: "IP range JSON: definition | Agent Ready Crawlers"
description: "IP range JSON: A JSON file of CIDR prefixes an operator publishes for one crawler, usually with a creationTime field. Read 2026-11-04."
canonical: https://agentreadycrawlers.com/glossary/ip-range-json
site: "Agent Ready Crawlers"
last_updated: 2026-11-04
section: "Glossary"
---

# IP range JSON: definition | Agent Ready Crawlers

> IP range JSON: A JSON file of CIDR prefixes an operator publishes for one crawler, usually with a creationTime field. Read 2026-11-04.

Source: https://agentreadycrawlers.com/glossary/ip-range-json
Site: Agent Ready Crawlers
Last reviewed: 2026-11-04

Glossary

# IP range JSON

In short

A JSON file of CIDR prefixes an operator publishes for one crawler, usually with a creationTime field. An IETF draft (jafar) proposes a common format. 17 Index rows publish an IP list as JSON, the most common method, and 35 publish no method at all. Example: OpenAI's gptbot.json carried creationTime 2026-09-22 when read on 2026-11-04.

## Definition

A JSON file of CIDR prefixes an operator publishes for one crawler, usually with a creationTime field. An IETF draft (jafar) proposes a common format.

## Sourced example

OpenAI's gptbot.json carried creationTime 2026-09-22 when read on 2026-11-04. [Source](https://openai.com/gptbot.json), read 2026-11-04.

## How it shows up here

17 Index rows publish an IP list as JSON, the most common method, and 35 publish no method at all.

-   [Verification Ledger](https://agentreadycrawlers.com/verification/)
-   [GPTBot profile](https://agentreadycrawlers.com/crawlers/gptbot/)

Previous: [HTTP Message Signatures](https://agentreadycrawlers.com/glossary/http-message-signatures/). Next: [Key directory](https://agentreadycrawlers.com/glossary/key-directory/). [All 41 terms](https://agentreadycrawlers.com/glossary/).

## Sources

-   [openai.com: gptbot (JSON)](https://openai.com/gptbot.json) read 2026-11-04

Last reviewed 2026-11-04