ua-tracer
by Paul Kinlan
trace bv14YOdY
what does a user agent actually fetch, follow & run?
Trace bv14YOdY
First seen: 2026-07-03 04:06:52.600 UTC
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36
Bot verification: Not a known bot (no IP-range check applies).
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 |
|---|---|---|---|---|
| 2026-07-03 04:06:52.600 UTC | +0 ms | homepage | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (14){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"host": "uatracer.com",
"priority": "u=0, i",
"sec-fetch-dest": "document",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "none",
"sec-fetch-user": "?1",
"traceparent": "00-ffd7e965e7bc0d37fbc3804b22b9210d-406d460aff08c705-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:53.659 UTC | +1059 ms | font (HTML) | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (15){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=1",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "font",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-ecf5c8daa9a722976413604dbfa04da0-7c8eb515e168dc9a-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:53.663 UTC | +1063 ms | Reporting API report (POST) | POST | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/141.0.0.0 Safari/537.36 |
request headers (13){
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"content-length": "515",
"content-type": "application/reports+json",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=4, i",
"traceparent": "00-e08e1ae7e43bd88f138d7f9a41823b29-45a34f6e4c730744-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "[{\"age\":0,\"body\":{\"blockedURL\":\"inline\",\"disposition\":\"report\",\"documentURL\":\"https://uatracer.com/\",\"effectiveDirective\":\"style-src-elem\",\"lineNumber\":9,\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"referrer\":\"\",\"sample\":\"\",\"sourceFile\":\"https://uatracer.com/\",\"statusCode\":200},\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"user_agent\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/141.0.0.0 Safari/537.36\"}]"
}
|
||||
| 2026-07-03 04:06:53.666 UTC | +1066 ms | prefetch | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (15){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"priority": "u=4, i",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"sec-purpose": "prefetch",
"traceparent": "00-d4cf2b403e44edd6a4a1986244ca5287-6f1ba7164642b65d-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:53.839 UTC | +1239 ms | iframe document | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (15){
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"priority": "u=0, i",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "iframe",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "same-origin",
"traceparent": "00-4faa483824e00aa60b69fa14eb014157-ae79015ccd1651ec-01",
"tracestate": "",
"upgrade-insecure-requests": "1",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:53.854 UTC | +1254 ms | JS | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (14){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"priority": "u=1",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "script",
"sec-fetch-mode": "no-cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-1eb3b1f288bee7ff0c97d2b9a82632fe-df7c3ac3396fc85e-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:53.854 UTC | +1254 ms | ES module | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (15){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=1",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "script",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-30591a4118795cf47a795b06187b69b7-58b4169f1558a5ea-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net"
}
|
||||
| 2026-07-03 04:06:54.612 UTC | +2012 ms | CSP violation report (POST) | POST | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (18){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"content-length": "383",
"content-type": "application/json",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=4, i",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-00c11b321b2daf0db86562c707a68f61-bcb833cb08397533-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"source\":\"securitypolicyviolation\",\"violatedDirective\":\"style-src-attr\",\"effectiveDirective\":\"style-src-attr\",\"blockedURI\":\"inline\",\"documentURI\":\"https://uatracer.com/\",\"disposition\":\"report\",\"lineNumber\":45,\"sourceFile\":\"https://uatracer.com/r/bv14YOdY/2Qk05Mwp/main.js\",\"ua\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36\"}"
}
|
||||
| 2026-07-03 04:06:54.615 UTC | +2015 ms | Reporting API report (POST) | POST | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (18){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"content-length": "2176",
"content-type": "application/json",
"cookie": "ua-tracer-trace=bv14YOdY",
"host": "uatracer.com",
"origin": "https://uatracer.com",
"priority": "u=4, i",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "empty",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-9b685807532a7815d24998e680ea7788-040271ff9d651b7f-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
"x-report-body": "{\"source\":\"ReportingObserver\",\"reports\":[{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":9,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-elem\",\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":235,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":239,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/\",\"lineNumber\":747,\"columnNumber\":0,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}},{\"type\":\"csp-violation\",\"url\":\"https://uatracer.com/\",\"body\":{\"sourceFile\":\"https://uatracer.com/r/bv14YOdY/2Qk05Mwp/main.js\",\"lineNumber\":45,\"columnNumber\":11,\"documentURL\":\"https://uatracer.com/\",\"referrer\":\"\",\"blockedURL\":\"inline\",\"effectiveDirective\":\"style-src-attr\",\"originalPolicy\":\"style-src 'self'; report-uri /r/bv14YOdY/2Qk05Mwp/csp-report; report-to ua-tracer\",\"sample\":\"\",\"disposition\":\"report\",\"statusCode\":200}}],\"ua\":\"Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36\"}"
}
|
||||
| 2026-07-03 04:06:54.617 UTC | +2017 ms | web app manifest | GET | Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36 |
request headers (15){
"accept": "*/*",
"accept-encoding": "gzip, deflate, br, zstd",
"accept-language": "en-US,en;q=0.9",
"host": "uatracer.com",
"priority": "u=2",
"referer": "https://uatracer.com/",
"sec-fetch-dest": "manifest",
"sec-fetch-mode": "cors",
"sec-fetch-site": "same-origin",
"traceparent": "00-a5d357b48ced45120743db2ba9a65607-f9066196f80da22d-01",
"tracestate": "",
"user-agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36",
"via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
"x-deno-userspace-traceparent": "00-a5d357b48ced45120743db2ba9a65607-19372818d379e700-01",
"x-deno-userspace-tracestate": ""
}
|
||||
| 2026-07-03 04:06:55.547 UTC | +2947 ms | Open Graph image | GET | Ruby |
request headers (10){
"accept": "*/*",
"accept-encoding": "gzip;q=1.0,deflate;q=0.6,identity;q=0.3",
"baggage": "sentry-trace_id=635fd421fb8a4d3fafaabcd66474549e,sentry-sample_rate=0.01,sentry-sample_rand=0.296649,sentry-sampled=false,sentry-environment=production,sentry-release=2594a69d583cf74df9513b91dab8f6f4dcba0451,sentry-public_key=aab2498373841041d6b48d721aefbdc1,sentry-org_id=4506690008121344",
"connection": "close",
"host": "uatracer.com",
"sentry-trace": "635fd421fb8a4d3fafaabcd66474549e-6e2faf31a43c41e8-0",
"traceparent": "00-220f49da0fa537e9165ae5bb25181ac2-522e321f6b0d6d9e-01",
"tracestate": "",
"user-agent": "Ruby",
"via": "HTTP/1.1 ord.vultr.prod.deno-cluster.net"
}
|
||||