What is YisouSpider?
YisouSpider is a search engine crawler operated by Yisou. You can set up Agent Analytics to see when YisouSpider visits your website.
Category
| Example User Agent | YisouSpider |
| Operated By | Yisou |
| Triggered By | Automated crawl |
| Used for AI Model Training | Not expected |
| Affects AI Chat & Search Visibility | Possibly |
| Expected To Follow Robots.txt | Yes |
Why Is YisouSpider Visiting My Website?
YisouSpider is adding new or changed pages to its search index. It may have discovered your site through links, a sitemap, or direct submission.
Should I Block YisouSpider?
No, unless you want to remove your pages from that search engine. YisouSpider supplies its index, so blocking it can eliminate your visibility and organic traffic there. Nearly every website should allow this category. For context, 7% of the top websites we track currently have robots.txt rules for YisouSpider.
How Do I Block YisouSpider Using Robots.txt?
Add this rule to your robots.txt file to block YisouSpider from accessing your website, or use Automatic Robots.txt to block all search engine crawlers at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: YisouSpider # https://knownagents.com/agents/yisouspider
Disallow: /Insights for YisouSpider
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 YisouSpider?
YisouSpider follows an algorithmic schedule shaped by your site's popularity, update cadence, and domain authority. It generally spreads requests across recurring crawl passes, throttles itself to limit server load, and respects crawl rules more reliably than most other bots.
Does YisouSpider Follow Robots.txt Rules?
YisouSpider 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 YisouSpider respects it.
Is YisouSpider Used for AI Model Training?
Not ordinarily. YisouSpider is not categorized as an AI training scraper or data provider, so AI model training is not its expected purpose.
Does Blocking YisouSpider Affect AI Search or Citations?
Blocking YisouSpider can remove your pages from the search engine it supplies. That may also affect AI products that rely on the same index, but it does not directly control unrelated AI search services.
Does YisouSpider Access Private Content?
No special access. YisouSpider can reach only content available to anonymous visitors and does not sign in. Make sure sensitive content is not public by mistake.
How Can I Verify a Request From YisouSpider?
Agent Analytics tracks YisouSpider visits in real time. You can also check your server logs for requests whose user-agent string contains "YisouSpider". Look for recurring passes that revisit changed pages and discover new ones. Because YisouSpider does not publish a verification method, any client can claim its identity and a log match is only a clue.