ua-tracer
by Paul Kinlan
ua-tracer
what does a user agent actually fetch, follow & run?
Trace kqRoHAwW
First seen: 2026-06-23 11:24:15.828 UTC
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)
What this user agent did
Directly-referenced assets:
✓ fetched CSS
✓ fetched JS
✗ fetched image
✗ fetched font (HTML)
Document-level link hints:
✗ fetched favicon
✗ fetched apple-touch-icon
✗ fetched web manifest
✗ fetched preload
✗ fetched prefetch
Second-level follows (proves it parsed the linking file):
✗ followed CSS background-image
✗ followed CSS @font-face
✗ followed manifest icon
✓ followed CSS @import
Frames (does it descend into iframes?):
✓ fetched iframe document
✗ descended into iframe (loaded inner image)
Reporting (a report-only CSP is violated by inline styles; reports can arrive via HTTP headers with no JS, or via in-page beacons):
✓ sent a CSP/Reporting report (any path)
✓ delivered via report-uri/Report-To header (no JS)
✗ delivered via in-page beacon (securitypolicyviolation / ReportingObserver)
Social embed (Open Graph / Twitter card images):
✗ fetched og:image
✗ fetched twitter:image
JavaScript execution:
✗ EXECUTED classic JS
✗ EXECUTED ES module
✗ posted client timing
Server-side request waterfall
Every request the server received for this trace, in receive order. +ms is the delta from the
homepage request.
| Received | Δ | Kind | Method | User-Agent |
|---|---|---|---|---|
| 2026-06-23 11:24:15.828 UTC | +0 ms | homepage | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (7){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip,identity",
"host": "uatracer.com",
"traceparent": "00-c68a16f48d9808c882c64cfb462a52d2-875c36edaf1db39d-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:08.527 UTC | +652699 ms | ES module | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (13){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "script",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-502e7a6dfb9351ff157817f573d6e3f8-fd67d1f61fafa056-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:09.777 UTC | +653949 ms | CSS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (12){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "style",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-02894048b0240823ebe11ec3598aaa9f-12281626cb412449-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:11.125 UTC | +655297 ms | JS | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (12){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "script",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-58105761513b01c90cf3043ecdc9c216-37df012de28de0e3-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:12.469 UTC | +656641 ms | iframe document | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (12){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "iframe",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "same-origin",
"traceparent": "00-46409a3ca842762e7b88f3a11b1d734c-3339db3516e5f503-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:13.827 UTC | +657999 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (17){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"cache-control": "max-age=0",
"content-length": "388",
"content-type": "application/csp-report",
"host": "uatracer.com",
"origin": "null",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-19c306ab76ef844df24f0622b7070948-89c0b11678fc0eb2-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-elem\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/kqRoHAwW/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":9,\"columnNumber\":1}}"
}
|
||||
| 2026-06-23 11:35:15.157 UTC | +659329 ms | CSS @import (nested stylesheet) | GET | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (12){
"accept": "text/css,*/*;q=0.1",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"host": "uatracer.com",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "style",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-27981f50e79f5f07ad99b5b07f392e42-b5b7e73510c57621-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-06-23 11:35:16.479 UTC | +660651 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (17){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"cache-control": "max-age=0",
"content-length": "390",
"content-type": "application/csp-report",
"host": "uatracer.com",
"origin": "null",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-47418c8f8f315d5ae061822719238c2c-b55eb2bc4da6fdc8-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/kqRoHAwW/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":213,\"columnNumber\":1}}"
}
|
||||
| 2026-06-23 11:35:17.821 UTC | +661993 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (17){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"cache-control": "max-age=0",
"content-length": "390",
"content-type": "application/csp-report",
"host": "uatracer.com",
"origin": "null",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-a1f69b8e76cfea0df33142aa52978918-e71155f59facb3f4-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/kqRoHAwW/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":721,\"columnNumber\":1}}"
}
|
||||
| 2026-06-23 11:35:19.158 UTC | +663330 ms | Reporting API report (POST) | POST | Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot) |
request headers (17){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br",
"accept-language": "en-US,en;q=0.90",
"cache-control": "max-age=0",
"content-length": "412",
"content-type": "application/csp-report",
"host": "uatracer.com",
"origin": "null",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-ac3c855bc7173a857d0548becb623a41-19c64a79b3edfea4-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.4 Safari/605.1.15 (Applebot/0.1; +http://www.apple.com/go/applebot)",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"documentURL\":\"https://uatracer.com/\",\"disposition\":\"report\",\"referrer\":\"\",\"effectiveDirective\":\"style-src-attr\",\"blockedURL\":\"inline\",\"originalPolicy\":\"style-src 'self'; report-uri /r/kqRoHAwW/csp-report; report-to ua-tracer\",\"statusCode\":200,\"sample\":\"\",\"sourceFile\":\"https://uatracer.com:443/r/kqRoHAwW/main.js\",\"lineNumber\":45,\"columnNumber\":23}}"
}
|
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