CrawlwrenBot

If you saw this User-Agent in your logs, this page explains who we are, what we fetch, and how to reach us or opt out.

CrawlwrenBot/0.1 (<tool>; +https://crawlwren.com/bot)

<tool> names the tool making the request: uk-eu-tenders, global-tenders, sam-gov-opportunities or gleif-lei-lookup.

Who we are

Crawlwren makes small data tools on official open data: public tender notices and LEI records. The tools run on the Apify platform when someone starts a run.

What we fetch

Rate limits

HostPacing
Default, per hostOne request at a time, at least 1 second apart
UK Contracts Finder, Find a TenderAt most 24 requests per minute per run, 2 at a time
GLEIF APIAt least 1.1 seconds apart
World Bank, EU Funding & TendersAt least 1.5 seconds apart
SAM.gov (keyless)One public-extract download per run

On HTTP 429 we wait for Retry-After (up to 2 minutes) before retrying; on 5xx and network errors we retry up to 3 times with backoff.

Opt out or slow us down

  1. Email [email protected] from your domain with the host name. We’ll stop fetching it or lower the rate, and confirm by email.
  2. Or block the User-Agent token CrawlwrenBot at your server or CDN. Our tools stop on a block rather than retrying around it.

Contact

[email protected] reaches a person.