Drop in a URL and we'll fetch the page + its same-origin assets and reveal what each
request is doing — DNS, connect, TLS handshake, wait-for-first-byte, download time,
server software, compression, protocol, IP, and which networks (PWHOIS) host each piece.
User-Agent
▾
Accept-Language
▾
Accept-Encodingbr, gzip, deflate
Starting…
Warming up the request engine…
0.0s
Up to 64 requests run in parallel —
the line above shows live progress as assets are fetched.
Stacked horizontal bar per asset. Bar length = real per-fetch wall-clock
(NOT summed across the parallel run). Look for outliers — usually one
long Wait (slow server) or Download (large payload).
By Asset Type — bytes
By Host — bytes
Compression / Encoding
Server Software
HTTP Protocol
An asset labelled just HTTP
(no version) means no HTTP status line was received — the transfer
failed before any HTTP exchange completed (DNS failure, connection
reset, timeout, TLS error). The version that would have
been negotiated is unknown.
DNS Time per Host (first lookup)
DNS times reflect the first lookup of each
host. Recently-resolved hosts may be served from a DNS cache and can
read well under 1 ms (e.g. 0.20 ms), which
reflects the cached response rather than a full authoritative lookup.
These figures are most meaningful on the first analysis of a host you
haven't analyzed recently.
Per-Asset Detail
#
Type
URL
Host
IP / Network
Proto
Enc
Server
Status
Size
DNS
Conn
TLS
TTFB
Total
Speed
Reference Tree — which document linked each asset
Edges connect each parent document (HTML or CSS) to the assets it referenced.
Hover over a node to see its full URL. Scroll vertically for deep trees.
Tracking & Privacy
Who is watching this visitor — observed against what the site
declares in its ads.txt. Trackers are found two ways:
loaded (we fetched them) and referenced (their endpoint appears
in page/script source — static scan, no JavaScript executed).
Network Timeline
One shared clock, left to right. Rows are in the order they actually happened —
an asset only starts once the parent that references it has been downloaded and parsed.