What is Buttondown?
Buttondown is an automated RSS feed crawler that fetches content from blogs and websites to convert them into newsletter content, allowing users to turn their RSS feeds into automated mailing lists. Agent Analytics can track when it visits your website.
Overview
| Operated By | Buttondown |
| Source | Official Website |
| Expected To Follow Robots.txt | No |
| Insights Last Updated | July 19, 2026 |
Category
Expected Behavior
Buttondown shows up within seconds of someone sharing one of your URLs, grabs the title, description, and preview image, and leaves. Expect one hit per share, no link following, and volume that tracks how much your content circulates. A widely shared link can mean thousands of fetches in an hour.
How To Block Buttondown With Robots.txt
Add this rule to your robots.txt file to request that Buttondown not access your website, or use Automatic Robots.txt to request the same of all fetchers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: Buttondown # https://knownagents.com/agents/buttondown
Disallow: /Global Insights for Buttondown
As of July 19, 2026, this data reflects agent visits measured across thousands of websites using Agent Analytics, combined with daily scans of the world's top 1000 websites and their robots.txt files.
Robots.txt Blocked Percentage
Country of Origin
Robots.txt Blocking Trend
0% of top websites block Buttondown in their robots.txt files.
Overall Fetcher Traffic
4.0% of all web traffic came from fetchers.
Frequently Asked Questions
Should I Block Buttondown?
No. Buttondown builds the link preview that appears when someone shares your page in a chat or social feed. Blocking it turns those shares into bare links with no title or image, which fewer people click. Its traffic normally follows sharing activity rather than a crawl schedule, so if it ever starts crawling at volume, rate limit it instead of blocking it. Almost none of the top websites we track have robots.txt rules for Buttondown right now.
Does Buttondown Follow Robots.txt Rules?
No. Buttondown is not expected to follow robots.txt rules, so a disallow rule only states your preference. Enforce the block with firewall or server rules, then confirm in Agent Analytics that its requests actually stop.
Does Buttondown Access Private Content?
It cannot. Buttondown loads only the exact URL someone shared, reads the title, description, and preview image, and leaves. It has no credentials and does not follow links to other pages.
Why Is Buttondown Visiting My Website?
Someone shared a link to your page. Buttondown fetched it once to build the preview card, and every new share can trigger another fetch, so spikes mean your content is spreading.
How Can I Tell if Buttondown Is Visiting My Website?
Agent Analytics tracks Buttondown visits in real time alongside every other known AI agent, crawler, and scraper. You can also check your server logs for requests whose user agent string contains "Buttondown". Look for hits on single pages moments after someone shares a link, with no crawling afterward. Keep in mind that Buttondown doesn't publish a verification method, so any client can claim its user agent string and a log match is a hint rather than proof.