What is TLS tester?
TLS tester is an uncategorized agent. Agent Analytics can track when it visits your website.
Overview
| Source | Official Website |
| Expected To Follow Robots.txt | Yes |
| Insights Last Updated | August 12, 2026 |
Do you operate this agent? Contact us to suggest an update.
Category
Expected Behavior
TLS tester does not yet have an established behavior profile. Look for patterns in Agent Analytics: steady, considerate crawling may indicate an unannounced index, while fast, deep sweeps suggest scraping. Its user-agent string and IP addresses may offer the best clues to who operates it.
TLS tester's User Agent
| User Agent | TLS tester from https://testssl.sh/dev/ |
How To Block TLS tester With Robots.txt
Add this rule to your robots.txt file to block TLS tester from accessing your entire website, or use Automatic Robots.txt to block all uncategorized agents at once. You can customize which pages are blocked by swapping out / for a different path.
User-agent: TLS tester # https://knownagents.com/agents/tls-tester
Disallow: /Global Statistics for TLS tester
As of August 12, 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 Blocked Percentage
Country of Origin
Robots.txt Blocking Trend
0% of top websites block TLS tester in their robots.txt files.
Overall Uncategorized Traffic
1.9% of all web traffic came from uncategorized agents.
Top Visited Website Categories
The types of websites most frequently visited by TLS tester.
Frequently Asked Questions
Should I Block TLS tester?
Monitor it before deciding. TLS tester has not been categorized, so there is no established behavior profile to rely on. Review which pages it requests and how often, then block it if the traffic is excessive or targets content you would not share with an unknown bot. Almost none of the top websites we track currently have robots.txt rules for TLS tester.
Does TLS tester Follow Robots.txt Rules?
Yes. TLS tester is expected to follow robots.txt directives, so a disallow rule is the appropriate first step. Automatic Robots.txt can add and maintain that rule, while Agent Analytics lets you verify whether TLS tester respects it.
Does TLS tester Access Private Content?
Unknown. TLS tester has no established scope, so monitor what it requests. Repeated attempts to reach login or admin paths are a reason to investigate or block it.
Why Is TLS tester Visiting My Website?
TLS tester's purpose has not yet been identified. Until it is categorized or its operator explains it, its behavior on your site is the best evidence of its intent.
How Can I Tell if TLS tester Is Visiting My Website?
Agent Analytics tracks TLS tester 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 "TLS tester". Record the paths it requests and how often because no reliable behavior profile exists yet. Because TLS tester does not publish a verification method, any client can claim its identity and a log match is only a clue.