# ia_archiver

> The legacy Alexa/Internet Archive token, still present in most robots.txt files and still occasionally honoured.

| field | value |
|---|---|
| operator | Internet Archive |
| category | Archivers |
| robots.txt token | `ia_archiver` |
| user-agent contains | `ia_archiver` |
| robots.txt | obeys robots.txt (documented) |
| verify by | no published verification method |
| published IP ranges | none published |
| prefixes mirrored | 0 IPv4 / 0 IPv6 |
| operator docs | https://archive.org/details/archive.org_bot |
| last reviewed | 2026-09-01 |

## What blocking it costs you

Negligible today; retain for tidiness.

## Full user-agent string

```
ia_archiver (+http://www.alexa.com/site/help/webmasters; crawler@alexa.com)
```

## Block it

```
User-agent: ia_archiver
Disallow: /
```

## Allow it

```
User-agent: ia_archiver
Allow: /
```

JSON: https://www.pathwren.workers.dev/crawler/ia-archiver.json · index: https://www.pathwren.workers.dev/llms.txt