ua-tracer by Paul Kinlan

trace dKQ3aDqw

ua-tracer

what does a user agent actually fetch, follow & run?

← all traces

Trace dKQ3aDqw

First seen: 2026-10-26 06:24:52.158 UTC
User-Agent: Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
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.

ReceivedΔKindMethodUser-Agent
2026-10-26 06:24:52.158 UTC +0 ms homepage GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (15) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "host": "uatracer.com",
  "priority": "u=0, i",
  "referer": "https://m.baidu.com/from=0/bd_page_type=1/ssid=0/uid=0/pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0/baiduid=3AFE7AE253D51A9B91C000B3468A8D12/w=0_10_/t=iphone/l=1/tc?clk_type=1&vit=osres&l=1&baiduid=3AFE7AE253D51A9B91C000B3468A8D12&t=iphone&ref=www_iphone&from=0&ssid=0&lid=66119871445061299&bd_page_type=1&pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0&order=1&fm=alop&isAtom=1&waplogo=1&clk_info=%7B%22tplname%22%3A%22www_index%22%2C%22srcid%22%3A1599%2C%22jumpType%22%3A%22%22%2C%22iq_lvl%22%3A%220%22%2C%22urlsign%22%3A%228600875921215071687%22%2C%22hasaftclk%22%3A%221%22%2C%22action%22%3A%22abstract%22%2C%22t%22%3A1792995877997%2C%22xpath%22%3A%22div-div-article-section-div2(pure-summary)-div-div-div(abstract)-div-div-span%22%7D&dict=-1&otn=1&is_baidu=0&tj=www_index_1_0_10_title&m=8&cltj=normal_title&asres=1&phoneos=bd_search_iphone&title=ua-tracer&wd=&eqid=00eae7ac3a13ceb3100000046adef224&w_qd=IlPT2AEptyoA_yixCFOxUWx8qBHE00ijGB_YPWBF1q&bdver=2_1&tcplug=1&sec=16254&di=28fd91a95e70d796&bdenc=1&nsrc=FzZXepwcNDf5G3G0YbJtyb%2BMMGqttdpaH03sKFn%2Be0cO4ks%2BfJiPPeA7gL0KygBEViz601wvZce5AigfT9aklQ%3D%3D&extra=%7B%22url%22%3A%22https%25253A%25252F%25252Fuatracer.com%25252F%22%7D&ck0=156&ck1=58&ck2=255&ck3=332&ck6=0&ck7=0&ala_anti=ck0%40156%2Cck1%4058%2Cck7%400&rfrom=1024320u&rchannel=1024321o&rqid=66119871445061299&mcpErrorActionTrigger=execInvokeInner",
  "sec-fetch-dest": "document",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "cross-site",
  "te": "trailers",
  "traceparent": "00-cbb0b684fcca621347a4f68098b23264-46662e0658eeb5f8-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:57.066 UTC +4908 ms font (HTML) GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (15) 
{
  "accept": "application/font-woff2;q=1.0,application/font-woff;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=2",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "font",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-ecaaf7111cf33bb3530040b28507c634-f1c0e1f63764ad6c-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:57.068 UTC +4910 ms preload (image) GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (15) 
{
  "accept": "image/avif,image/jxl,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=5, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-163dba7d901ad75545b8ba889aeab851-3ace0716c9086241-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:57.069 UTC +4911 ms CSS GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (15) 
{
  "accept": "text/css,*/*;q=0.1",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=2",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "style",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-d9292a57d760a656a192c96366d65dda-fba093cab43fb787-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:57.077 UTC +4919 ms Reporting API report (POST) POST Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "content-length": "1959",
  "content-type": "application/reports+json",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-e97ab99e1cc261579fa6eb7ba2ea0922-ac62590ffd133573-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-report-body": "[\n {\n  \"age\": 4,\n  \"type\": \"csp-violation\",\n  \"url\": \"https://uatracer.com/\",\n  \"user_agent\": \"Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0\",\n  \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://m.baidu.com/from=0/bd_page_type=1/ssid=0/uid=0/pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0/baiduid=3AFE7AE253D51A9B91C000B3468A8D12/w=0_10_/t=iphone/l=1/tc?clk_type=1&vit=osres&l=1&baiduid=3AFE7AE253D51A9B91C000B3468A8D12&t=iphone&ref=www_iphone&from=0&ssid=0&lid=66119871445061299&bd_page_type=1&pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0&order=1&fm=alop&isAtom=1&waplogo=1&clk_info=%7B%22tplname%22%3A%22www_index%22%2C%22srcid%22%3A1599%2C%22jumpType%22%3A%22%22%2C%22iq_lvl%22%3A%220%22%2C%22urlsign%22%3A%228600875921215071687%22%2C%22hasaftclk%22%3A%221%22%2C%22action%22%3A%22abstract%22%2C%22t%22%3A1792995877997%2C%22xpath%22%3A%22div-div-article-section-div2(pure-summary)-div-div-div(abstract)-div-div-span%22%7D&dict=-1&otn=1&is_baidu=0&tj=www_index_1_0_10_title&m=8&cltj=normal_title&asres=1&phoneos=bd_search_iphone&title=ua-tracer&wd=&eqid=00eae7ac3a13ceb3100000046adef224&w_qd=IlPT2AEptyoA_yixCFOxUWx8qBHE00ijGB_YPWBF1q&bdver=2_1&tcplug=1&sec=16254&di=28fd91a95e70d796&bdenc=1&nsrc=FzZXepwcNDf5G3G0YbJtyb%2BMMGqttdpaH03sKFn%2Be0cO4ks%2BfJiPPeA7gL0KygBEViz601wvZce5AigfT9aklQ%3D%3D&extra=%7B%22url%22%3A%22https%25253A%25252F%25252Fuatracer.com%25252F%22%7D&ck0=156&ck1=58&ck2=255&ck3=332&ck6=0&ck7=0&ala_anti=ck0%40156%2Cck1%4058%2Cck7%400&rfrom=1024320u&rchannel=1024321o&rqid=66119871445061299&mcpErrorActionTrigger=execInvokeInner\",\n \"effectiveDirective\": \"style-src-elem\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/dKQ3aDqw/R8WPkPq4/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 9,\n \"columnNumber\": 1\n}\n\n }\n]"
}
2026-10-26 06:24:57.098 UTC +4940 ms Reporting API report (POST) POST Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "content-length": "3916",
  "content-type": "application/reports+json",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=4",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-f76a1b93dfe4e1b886c51e6b9d3f17fc-0c40c9ea87288dbf-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net",
  "x-report-body": "[\n {\n  \"age\": 4,\n  \"type\": \"csp-violation\",\n  \"url\": \"https://uatracer.com/\",\n  \"user_agent\": \"Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0\",\n  \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://m.baidu.com/from=0/bd_page_type=1/ssid=0/uid=0/pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0/baiduid=3AFE7AE253D51A9B91C000B3468A8D12/w=0_10_/t=iphone/l=1/tc?clk_type=1&vit=osres&l=1&baiduid=3AFE7AE253D51A9B91C000B3468A8D12&t=iphone&ref=www_iphone&from=0&ssid=0&lid=66119871445061299&bd_page_type=1&pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0&order=1&fm=alop&isAtom=1&waplogo=1&clk_info=%7B%22tplname%22%3A%22www_index%22%2C%22srcid%22%3A1599%2C%22jumpType%22%3A%22%22%2C%22iq_lvl%22%3A%220%22%2C%22urlsign%22%3A%228600875921215071687%22%2C%22hasaftclk%22%3A%221%22%2C%22action%22%3A%22abstract%22%2C%22t%22%3A1792995877997%2C%22xpath%22%3A%22div-div-article-section-div2(pure-summary)-div-div-div(abstract)-div-div-span%22%7D&dict=-1&otn=1&is_baidu=0&tj=www_index_1_0_10_title&m=8&cltj=normal_title&asres=1&phoneos=bd_search_iphone&title=ua-tracer&wd=&eqid=00eae7ac3a13ceb3100000046adef224&w_qd=IlPT2AEptyoA_yixCFOxUWx8qBHE00ijGB_YPWBF1q&bdver=2_1&tcplug=1&sec=16254&di=28fd91a95e70d796&bdenc=1&nsrc=FzZXepwcNDf5G3G0YbJtyb%2BMMGqttdpaH03sKFn%2Be0cO4ks%2BfJiPPeA7gL0KygBEViz601wvZce5AigfT9aklQ%3D%3D&extra=%7B%22url%22%3A%22https%25253A%25252F%25252Fuatracer.com%25252F%22%7D&ck0=156&ck1=58&ck2=255&ck3=332&ck6=0&ck7=0&ala_anti=ck0%40156%2Cck1%4058%2Cck7%400&rfrom=1024320u&rchannel=1024321o&rqid=66119871445061299&mcpErrorActionTrigger=execInvokeInner\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/dKQ3aDqw/R8WPkPq4/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n },\n {\n  \"age\": 4,\n  \"type\": \"csp-violation\",\n  \"url\": \"https://uatracer.com/\",\n  \"user_agent\": \"Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0\",\n  \"body\": {\n \"documentURL\": \"https://uatracer.com/\",\n \"blockedURL\": \"inline\",\n \"referrer\": \"https://m.baidu.com/from=0/bd_page_type=1/ssid=0/uid=0/pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0/baiduid=3AFE7AE253D51A9B91C000B3468A8D12/w=0_10_/t=iphone/l=1/tc?clk_type=1&vit=osres&l=1&baiduid=3AFE7AE253D51A9B91C000B3468A8D12&t=iphone&ref=www_iphone&from=0&ssid=0&lid=66119871445061299&bd_page_type=1&pu=usm%401%2Csz%401320_1001%2Cta%40iphone_2_12.0_29_158.0&order=1&fm=alop&isAtom=1&waplogo=1&clk_info=%7B%22tplname%22%3A%22www_index%22%2C%22srcid%22%3A1599%2C%22jumpType%22%3A%22%22%2C%22iq_lvl%22%3A%220%22%2C%22urlsign%22%3A%228600875921215071687%22%2C%22hasaftclk%22%3A%221%22%2C%22action%22%3A%22abstract%22%2C%22t%22%3A1792995877997%2C%22xpath%22%3A%22div-div-article-section-div2(pure-summary)-div-div-div(abstract)-div-div-span%22%7D&dict=-1&otn=1&is_baidu=0&tj=www_index_1_0_10_title&m=8&cltj=normal_title&asres=1&phoneos=bd_search_iphone&title=ua-tracer&wd=&eqid=00eae7ac3a13ceb3100000046adef224&w_qd=IlPT2AEptyoA_yixCFOxUWx8qBHE00ijGB_YPWBF1q&bdver=2_1&tcplug=1&sec=16254&di=28fd91a95e70d796&bdenc=1&nsrc=FzZXepwcNDf5G3G0YbJtyb%2BMMGqttdpaH03sKFn%2Be0cO4ks%2BfJiPPeA7gL0KygBEViz601wvZce5AigfT9aklQ%3D%3D&extra=%7B%22url%22%3A%22https%25253A%25252F%25252Fuatracer.com%25252F%22%7D&ck0=156&ck1=58&ck2=255&ck3=332&ck6=0&ck7=0&ala_anti=ck0%40156%2Cck1%4058%2Cck7%400&rfrom=1024320u&rchannel=1024321o&rqid=66119871445061299&mcpErrorActionTrigger=execInvokeInner\",\n \"effectiveDirective\": \"style-src-attr\",\n \"originalPolicy\": \"style-src 'self'; report-uri https://uatracer.com/r/dKQ3aDqw/R8WPkPq4/csp-report; report-to ua-tracer\",\n \"sourceFile\": \"https://uatracer.com/\",\n \"sample\": null,\n \"disposition\": \"report\",\n \"statusCode\": 200,\n \"lineNumber\": 0,\n \"columnNumber\": 1\n}\n\n }\n]"
}
2026-10-26 06:24:58.226 UTC +6068 ms image GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (15) 
{
  "accept": "image/avif,image/jxl,image/webp,image/png,image/svg+xml,image/*;q=0.8,*/*;q=0.5",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=5, i",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "image",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-3f5f381767450293d2501f733d9288b0-f3f81e44f2fd05a1-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:58.233 UTC +6075 ms JS GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-adfdce6518fd78971b93c8aab482fe3e-b6de4e2710d0bdaa-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:58.233 UTC +6075 ms ES module GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "script",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-dd9d0155a765aeacdf350801d45db6f7-5ed9a050f1852c40-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:58.250 UTC +6092 ms iframe document GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (16) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=4",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "iframe",
  "sec-fetch-mode": "navigate",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-06f44bec9e8cc2c53189bc82c68eff64-0d81c0a72cfb3def-01",
  "tracestate": "",
  "upgrade-insecure-requests": "1",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:24:58.257 UTC +6099 ms Reporting API report (POST) POST Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (19) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
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  "te": "trailers",
  "traceparent": "00-d82abc28cce499ec04812671c224cf05-e4aa7af10f1ff4fd-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:25:02.288 UTC +10130 ms web app manifest GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (14) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "host": "uatracer.com",
  "priority": "u=4",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "manifest",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-a588110b9ada4e195a4745bf672e90c9-b7d1eea1cb62b07d-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:25:02.531 UTC +10373 ms apple-touch-icon GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (16) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=4",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "none",
  "te": "trailers",
  "traceparent": "00-b702231a25b351c3ce415beddcd4d69a-90596973dd5b9c70-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ord.vultr.prod.deno-cluster.net",
  "x-deno-userspace-traceparent": "00-b702231a25b351c3ce415beddcd4d69a-ceec8eae46c059bb-01",
  "x-deno-userspace-tracestate": ""
}
2026-10-26 06:25:03.426 UTC +11268 ms prefetch GET Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (16) 
{
  "accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "priority": "u=6",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "no-cors",
  "sec-fetch-site": "same-origin",
  "sec-purpose": "prefetch",
  "te": "trailers",
  "traceparent": "00-3f7cabbe3f19cc5c072cde62099d0b7d-3db668aacfb0c4fc-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}
2026-10-26 06:25:04.305 UTC +12147 ms client timing POST POST Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0
request headers (18) 
{
  "accept": "*/*",
  "accept-encoding": "gzip, deflate, br, zstd",
  "accept-language": "zh-CN",
  "content-length": "2556",
  "content-type": "application/json",
  "cookie": "[redacted]",
  "host": "uatracer.com",
  "origin": "https://uatracer.com",
  "priority": "u=6",
  "referer": "https://uatracer.com/",
  "sec-fetch-dest": "empty",
  "sec-fetch-mode": "cors",
  "sec-fetch-site": "same-origin",
  "te": "trailers",
  "traceparent": "00-a4cd6d7dc18aaa4be8f2192c60fe5ec4-7768606f7dbb1200-01",
  "tracestate": "",
  "user-agent": "Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0",
  "via": "HTTP/2 ams.vultr.prod.deno-cluster.net"
}

Client-side resource waterfall

Reported by performance.getEntriesByType('resource') after JS ran in the UA. This proves a real browser-grade engine, not just a downloader.

ResourceInitiatorStartDurationTimeline
font.woff2 other 13168ms 1165ms
style.css link 13168ms 1477ms
preload.png link 13169ms 1838ms
photo.png img 14335ms 2156ms
main.js script 14337ms 1797ms
module.js script 14339ms 982ms
iframe iframe 14367ms 3259ms
import.css css 14648ms 1045ms
css-bg.png css 15735ms 1887ms
js-ran.gif?t=1792995899429 img 16147ms 1477ms
csp-report other 16148ms 1483ms
report other 16152ms 1927ms
module-ran.gif?t=1792995899441 img 16156ms 3350ms
css-font.woff2 other 17315ms 1118ms
manifest.json fetch 18376ms 1498ms