What Atlassian HttpClient does
Atlassian HttpClient is the HTTP client library that Jira uses to send outbound requests such as webhook deliveries, posting JSON payloads to external endpoints that an administrator has configured. In server logs it appears with a user agent in the form "Atlassian HttpClient 0.23.3 / JIRA-7.8.0 (78000) / Default". The linked Atlassian page is a troubleshooting article about webhook posts failing when network infrastructure such as firewalls, content filters, or proxies blocks the outbound request.
How to identify Atlassian HttpClient
Temso identifies Atlassian HttpClienttraffic by matching the request's User-Agent header against this pattern. User-agent strings can be spoofed, so treat a match as an indication, not proof.
Atlassian HttpClientAtlassian HttpClient FAQ
What is Atlassian HttpClient?
Atlassian HttpClient is the HTTP client that Jira uses for outbound requests, including delivering webhook POSTs with JSON payloads to external systems. It shows up in logs with a user agent like "Atlassian HttpClient 0.23.3 / JIRA-7.8.0 (78000) / Default".
Can I block Atlassian HttpClient with robots.txt?
No. It is not a web crawler; it delivers webhooks that a Jira administrator pointed at a specific endpoint, so robots.txt does not apply. To stop the traffic, block it at the network level or have the webhook configuration removed in the sending Jira instance.
About Operational Bots
Monitoring, security scanning, link previews, webhooks, and feed fetchers: the utility traffic that keeps integrations and shared links working.
Most of this traffic is service-critical or user-triggered. Webhooks and previews don't follow robots.txt, and blocking them tends to break things you rely on.
