What is mirrorweb?
mirrorweb is a web archiving crawler that captures websites in their entirety, including dynamic content and interactive elements, creating tamper-proof WARC archives for compliance. You can set up Agent Analytics to see when mirrorweb visits your website.
Category
| Example User Agent | Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/78.0.3904.97 Safari/537.36 +https://www.mirrorweb.com |
| Operated By | MirrorWeb |
| Source | Official Website |
| Triggered By | Automated crawl |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | Yes |
Why Is mirrorweb Visiting My Website?
mirrorweb is preserving your pages as part of a historical record. It returns periodically so the archive can capture how your content changes over time.
Should I Block mirrorweb?
Rarely. mirrorweb preserves snapshots of your pages through redesigns, migrations, and broken links. Blocking it prevents future captures but does not remove existing snapshots. To remove those, you must contact the archive directly. For context, 7% of the top websites we track currently have robots.txt rules for mirrorweb.
How Do I Block mirrorweb Using Robots.txt?
Add this rule to your robots.txt file to block mirrorweb from accessing your website, or use Automatic Robots.txt to block all archivers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: mirrorweb # https://knownagents.com/agents/mirrorweb
Disallow: /Insights for mirrorweb
As of October 29, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the top 1000 websites and their robots.txt files.
Robots.txt Compliance
Country of Origin
Robots.txt Blocked Percentage
mirrorweb Traffic
Frequently Asked Questions
What Traffic Patterns Should I Expect From mirrorweb?
mirrorweb periodically fetches complete pages rather than checking metadata alone. Visit frequency typically rises with your site's popularity and update cadence.
Does mirrorweb Follow Robots.txt Rules?
mirrorweb is expected to follow robots.txt rules, so a disallow rule is the appropriate first step if you want to block it. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether mirrorweb respects it.
Is mirrorweb Used for AI Model Training?
Not ordinarily. mirrorweb is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking mirrorweb Affect AI Search or Citations?
Not directly. mirrorweb's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.
Does mirrorweb Access Private Content?
No. mirrorweb archives only what an anonymous visitor can see. Anything public at crawl time may remain available in its archive long after you remove it from your site.
How Can I Verify a Request From mirrorweb?
Agent Analytics tracks mirrorweb visits in real time. You can also check your server logs for requests whose user-agent string contains "mirrorweb". Look for a page and its embedded assets being fetched again after a long interval. Because mirrorweb does not publish a verification method, any client can claim its identity and a log match is only a clue.
How Is mirrorweb Different From Other MirrorWeb Agents?
MirrorWeb operates separate agents for different purposes, so each agent should be evaluated and controlled independently.
- MirrorWebCrawler: MirrorWebCrawler is an uncategorized agent operated by MirrorWeb.