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Caution Data Scrapers

magpie-crawler

Operated by Brandwatch

Quick Facts

User-Agent:magpie-crawler
Category:Data Scrapers
Operator:Brandwatch
Safety:Caution
Blocking Impact:Low — No SEO ranking impact
SEO Impact Score:2/10

What is magpie-crawler?

Magpie-crawler is associated with Brandwatch (formerly Brandwatch / Crimson Hexagon) for social listening.

Magpie-crawler is associated with Brandwatch (formerly Brandwatch / Crimson Hexagon) for social listening. magpie-crawler is a data aggregation crawler. Unlike search bots or AI crawlers, its purpose is typically to collect content for private datasets, price monitoring, or research. Blocking magpie-crawler via robots.txt or at the server level has NO negative SEO impact. If you see excessive crawl volume from this bot in your logs, a hard block is recommended.

What happens if you block magpie-crawler?

✅ **Minimal Impact** — Blocking magpie-crawler has no meaningful effect on your search engine rankings or organic traffic.
Consider blocking based on your content strategy.

How to block magpie-crawler with robots.txt

<code>User-agent: magpie-crawler</code> — Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: magpie-crawler Disallow: /
Allow all (robots.txt)
User-agent: magpie-crawler Allow: /
Block private only (robots.txt)
User-agent: magpie-crawler Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block magpie-crawler if ($http_user_agent ~* "magpie\-crawler") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block magpie-crawler SetEnvIfNoCase User-Agent "magpie\-crawler" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is magpie-crawler safe to allow?

⚠️ **Use Caution with magpie-crawler.** While operated by Brandwatch for stated legitimate purposes, this bot collects your content for uses you may not want to support (commercial data aggregation). It generally respects robots.txt but may revisit pages more frequently than needed. Evaluate your content strategy: if you're concerned about your data being used for these purposes, block it.

What does magpie-crawler do?

Understanding magpie-crawler's purpose helps you decide whether to allow or block it.

Frequently Asked Questions

What is the official user-agent string for magpie-crawler?
The official user-agent string for magpie-crawler is: magpie-crawler. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from magpie-crawler by performing a reverse-DNS lookup on the source IP — legitimate bots resolve back to their operator's domain.
Is magpie-crawler safe?
⚠️ **Use Caution with magpie-crawler.** While operated by Brandwatch for stated legitimate purposes, this bot collects your content for uses you may not want to support (commercial data aggregation). It generally respects robots.txt but may revisit pages more frequently than needed. Evaluate your content strategy: if you're concerned about your data being used for these purposes, block it.
Will blocking magpie-crawler hurt my SEO?
✅ **Minimal Impact** — Blocking magpie-crawler has no meaningful effect on your search engine rankings or organic traffic.
How do I block magpie-crawler in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: magpie-crawler
Disallow: /
This instructs magpie-crawler not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g., Disallow: /blog/). Note: robots.txt is publicly readable — any bot or human can inspect it at yourdomain.com/robots.txt.
Does magpie-crawler respect robots.txt?
⚠️ magpie-crawler may not always respect robots.txt. For guaranteed blocking, combine robots.txt with server-level rules (Nginx if/return 403, Apache SetEnvIf, or Cloudflare WAF).
How do I verify if magpie-crawler is crawling my site?
Search your web server access logs for the string magpie-crawler (case-insensitive grep: grep -i "magpie-crawler" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For magpie-crawler specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of magpie-crawler?
Crawl frequency data for magpie-crawler is not publicly documented. Monitor your logs to understand actual visit patterns.
Can I block magpie-crawler from specific pages only?
Yes. Instead of a global Disallow: / you can restrict magpie-crawler to specific paths: 
User-agent: magpie-crawler
Disallow: /private/
Disallow: /staging/
Allow: /
This allows magpie-crawler everywhere except the listed paths. Path matching in robots.txt uses prefix matching — Disallow: /private/ blocks /private/page.html but NOT /public/private/.
Is magpie-crawler causing high server load?
If magpie-crawler is generating excessive requests, you can: 1. Add Crawl-delay: 30 below the User-agent directive in robots.txt. 2. Rate-limit the user-agent via Nginx's limit_req_zone or Apache's mod_ratelimit. 3. Block it outright at Cloudflare WAF with rule: http.user_agent contains "magpie-crawler". 4. Use fail2ban to auto-block IPs exceeding request thresholds.

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