Redirect chain tracer
HTTP /api/v1/http/redirectsStep-by-step view of every redirect with status, latency and location.
6 hops
→
https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&dsh=S909379258%3A1778337844079266&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&osid=1&passive=1209600&service=mail&flowName=WebLiteSignIn&flowEntry=ServiceLogin&ifkv=AWa2PavRDj-0n1s_Lwm90jl5qRe-xWv5Qj7AlHHN7fch4QrwmW_-iUWOC4ajjFurxa_WIJPzv0G4
-
1
301 32 ms GSE
https://mail.google.com→ /mail/ -
2
301 32 ms ESF
https://mail.google.com/mail/→ https://mail.google.com/mail/u/0/ -
3
302 34 ms ESF
https://mail.google.com/mail/u/0/→ https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1 -
4
302 35 ms ESF
https://accounts.google.com/ServiceLogin?service=mail&passive=1209600&osid=1&continue=https://mail.google.com/mail/u/0/&followup=https://mail.google.com/mail/u/0/&emr=1→ https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&dsh=S909379258:1778337844079266 -
5
302 38 ms GSE
https://accounts.google.com/InteractiveLogin?continue=https://mail.google.com/mail/u/0/&emr=1&followup=https://mail.google.com/mail/u/0/&osid=1&passive=1209600&service=mail&dsh=S909379258:1778337844079266→ https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&dsh=S909379258%3A1778337844079266&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&osid=1&passive=1209600&service=mail&flowName=WebLiteSignIn&flowEntry=ServiceLogin&ifkv=AWa2PavRDj-0n1s_Lwm90jl5qRe-xWv5Qj7AlHHN7fch4QrwmW_-iUWOC4ajjFurxa_WIJPzv0G4 -
6
200 78 ms ESF
https://accounts.google.com/v3/signin/identifier?continue=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&dsh=S909379258%3A1778337844079266&emr=1&followup=https%3A%2F%2Fmail.google.com%2Fmail%2Fu%2F0%2F&osid=1&passive=1209600&service=mail&flowName=WebLiteSignIn&flowEntry=ServiceLogin&ifkv=AWa2PavRDj-0n1s_Lwm90jl5qRe-xWv5Qj7AlHHN7fch4QrwmW_-iUWOC4ajjFurxa_WIJPzv0G4
How to use Redirect chain tracer
-
1
Paste your input
Enter the value at the top — domain, IP, URL, email, ASN, hash, whatever fits this tool. The smart input auto-detects type.
-
2
Click "Inspect"
host.tools issues real probes (DNS, HTTP, TCP, TLS, WHOIS where applicable) and renders the result in milliseconds.
-
3
Open the API tab
Every web tool has a sibling /api/v1/http/redirects JSON endpoint with the same payload. One copy-as-curl click and you're scripting it.
Why this matters
Headers are how the modern web declares its security posture. Auditing them is the highest-ROI thing you can do this week.
API equivalent
/api/v1/http/redirects?q=https%3A%2F%2Fmail.google.com
curl -s '/api/v1/http/redirects?q=https%3A%2F%2Fmail.google.com'
Embed this tool
<iframe src="/http/redirects?q={INPUT}&embed=1"
width="100%" height="600" frameborder="0"></iframe>
Drop into any HTML page. The embed=1 flag hides nav and footer.
FAQ · Redirect chain tracer
Common questions
Is Redirect chain tracer free?
Yes — every tool is free on the web with a 200/hour rate limit per IP. The matching API endpoint /api/v1/http/redirects is free up to 100 requests/hour, no key required.
Where does the data come from?
Real-time probes against authoritative sources (DNS root, RIRs, registries, the target server itself), plus partner data feeds from hostinfo.com (GeoIP/ASN) and hostcheck.com (reputation).
How fresh are the results?
Live by default. Cached for 5 minutes to make repeat queries instant; pass
?nocache=1 for a forced refresh.Can I run this from the command line?
Yes — every tool ships with a copy-as-curl. There's also an official CLI:
host.tools http redirects YOUR_INPUT.Can I monitor results over time?
Pro tier lets you schedule any tool to run every 1/5/15/60 min and alert on diff. See monitors.
host.tools Pro
Run Redirect chain tracer on a schedule. Get pinged when it changes.
Pro gets you bulk lookups, monitors, webhook alerts, history, exports and 10,000 API calls/day. $19/mo.
- ✓Schedule any tool — every 1, 5, 15, 60 min
- ✓Diff against last run, alert on change
- ✓Webhook + email + Slack + PagerDuty + OpsGenie
- ✓Bulk CSV upload, 1,000 inputs per job
- ✓Export results as CSV / NDJSON / Excel
- ✓90-day history, comparison view