Caution Other Agents

ia_archiver

Operated by Internet Archive

Quick Facts

User-Agent:
ia_archiver
Category:
Other Agents
Operator:
Internet Archive
Safety:
Caution
Blocking Impact:
Varies - Evaluate before blocking
SEO Impact Score:
0/10

What is ia_archiver?

The original user-agent for the Internet Archive's crawler (Alexa Internet).

The original user-agent for the Internet Archive's crawler (Alexa Internet). ia_archiver crawls websites using the user-agent ia_archiver. Review the safety rating and blocking impact below.

What happens if you block ia_archiver?

❓ **Impact Unknown** - The SEO consequences of blocking ia_archiver are not fully documented. Before blocking, check your analytics to confirm whether this bot generates referral traffic, review your server logs for crawl frequency, and test in a staging environment if possible.
Consider blocking based on your content strategy.

How to block ia_archiver with robots.txt

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

Block completely (robots.txt)
User-agent: ia_archiver Disallow: /
Allow all (robots.txt)
User-agent: ia_archiver Allow: /
Block private only (robots.txt)
User-agent: ia_archiver Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block ia_archiver if ($http_user_agent ~* "ia_archiver") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block ia_archiver SetEnvIfNoCase User-Agent "ia_archiver" 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 ia_archiver safe to allow?

⚠️ **Use Caution with ia_archiver.** While operated by Internet Archive for stated legitimate purposes, this bot collects your content for uses you may not want to support (data collection). 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 ia_archiver do?

Understanding ia_archiver's purpose helps you decide whether to allow or block it.

  • Performs specialized web crawling tasks
  • May be used for research or data collection
  • Purpose varies depending on the specific bot
  • Check official documentation for details
  • Impact of blocking depends on your use case

Frequently Asked Questions

What is the official user-agent string for ia_archiver?
The official user-agent string for ia_archiver is: ia_archiver. 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 ia_archiver by performing a reverse-DNS lookup on the source IP - legitimate bots resolve back to their operator's domain.
Is ia_archiver safe?
⚠️ **Use Caution with ia_archiver.** While operated by Internet Archive for stated legitimate purposes, this bot collects your content for uses you may not want to support (data collection). 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 ia_archiver hurt my SEO?
❓ **Impact Unknown** - The SEO consequences of blocking ia_archiver are not fully documented. Before blocking, check your analytics to confirm whether this bot generates referral traffic, review your server logs for crawl frequency, and test in a staging environment if possible.
How do I block ia_archiver in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: ia_archiver
Disallow: /
This instructs ia_archiver 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 ia_archiver respect robots.txt?
⚠️ ia_archiver 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 ia_archiver is crawling my site?
Search your web server access logs for the string ia_archiver (case-insensitive grep: grep -i "ia_archiver" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For ia_archiver specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of ia_archiver?
Crawl frequency data for ia_archiver is not publicly documented. Monitor your logs to understand actual visit patterns.
Can I block ia_archiver from specific pages only?
Yes. Instead of a global Disallow: / you can restrict ia_archiver to specific paths: 
User-agent: ia_archiver
Disallow: /private/
Disallow: /staging/
Allow: /
This allows ia_archiver everywhere except the listed paths. Path matching in robots.txt uses prefix matching - Disallow: /private/ blocks /private/page.html but NOT /public/private/.
Is ia_archiver causing high server load?
If ia_archiver 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 "ia_archiver". 4. Use fail2ban to auto-block IPs exceeding request thresholds.

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