What is Tumblr?
Tumblr is Automattic's link unfurling bot that fetches URL content to create rich Link Blocks in Tumblr posts, parsing responses to display titles, descriptions, and preview images for shared links. You can set up Agent Analytics to see when Tumblr visits your website.
Category
| Example User Agent | Tumblr/14.0.835.186 |
| Operated By | Automattic |
| Triggered By | Shared link |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Not directly |
| Expected To Follow Robots.txt | No |
Why Is Tumblr Visiting My Website?
Someone shared a link to your page. Tumblr fetched it to build a preview card, and each new share may trigger another request. A spike often means your content is circulating more widely.
Should I Block Tumblr?
Usually not. Blocking Tumblr may leave shared links without a title or image, making them less inviting to click. If it begins fetching at unexpected volume, try rate limiting before blocking it outright. For context, 7% of the top websites we track currently have robots.txt rules for Tumblr.
Insights for Tumblr
As of October 30, 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
Frequently Asked Questions
What Traffic Patterns Should I Expect From Tumblr?
Tumblr usually makes a single request within seconds of a URL being shared, without crawling further. Traffic rises and falls with sharing activity, so a widely circulated link can produce a sharp burst of fetches.
Does Tumblr Follow Robots.txt Rules?
No. Tumblr is not expected to follow robots.txt rules, so a disallow rule only communicates your preference. Enforce the block with firewall or server rules, then use Agent Analytics to verify that its requests stop.
Is Tumblr Used for AI Model Training?
Not ordinarily. Tumblr is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking Tumblr Affect AI Search or Citations?
Not directly. Tumblr's expected purpose is not to supply an AI search index or retrieve pages for AI-generated answers.
Does Tumblr Access Private Content?
No. Tumblr has no credentials and should access only the public URL and assets needed for a preview. It does not continue through the rest of your site.
How Can I Verify a Request From Tumblr?
Agent Analytics tracks Tumblr visits in real time. You can also check your server logs for requests whose user-agent string contains "Tumblr". Look for a page and its preview assets being requested without follow-up navigation. Because Tumblr does not publish a verification method, any client can claim its identity and a log match is only a clue.
How Is Tumblr Different From Other Automattic Agents?
Automattic operates separate agents for different purposes, so each agent should be evaluated and controlled independently.
- jetmon: jetmon monitors WordPress.com and Jetpack sites for uptime and availability issues, automatically checking sites to ensure they remain accessible.
- Jetpack: Jetpack is a developer helper operated by Automattic.
- WP.com mShots: WP.com mShots is a web fetcher operated by Automattic that captures webpage screenshots and thumbnails for the WordPress.com mShots service.