How privacy works
Private lookups are not added to public searches, stored reports or change history. This does not remove a report that was already public. Your choice lasts for this browser session.
Who hosts t.co?
Answer
t.co sits behind Cloudflare, which hides the server that really hosts it.
Checked 1 hour ago from Cloudflare ZRH in 278 ms. This is a saved result.
What needs attention
Prioritized observations from this check. Review changes with whoever manages the website.
- Improve
Review browser security headers
Content-Security-Policy, Clickjacking protection, X-Content-Type-Options, Referrer-Policy, Permissions-Policy did not meet the conservative header checks. This is not a complete security audit.
Next step: Review these headers with the site developer and test policy changes before enforcing them.
Evidence by layer
The company operating a network and the company selling the hosting can be different.
- CDN / proxy
- CloudflareStrong evidence
Network operators
Cloudflare
Network ownership alone does not confirm the retail hosting provider.
How we know
- 162.159.140.229 belongs to AS13335 (Cloudflare)
- HTTP header cf-ray: a50d9e483f7f4335-ZRH
- HTTP header server: cloudflare envoy
Servers
The addresses the name points to and the networks that own them.
- 162.159.140.229Cloudflare
No IPv6 address.
Website
What the site answered when we visited its home page.
- Status
- 200 OK
- Address
- https://t.co/
- Page title
- t.co / X
- HTTPS
- Yes
- HTTP/3
- Not advertised
- Response time
- 157 ms from Cloudflare ZRH
- Server
- cloudflare envoy
Security headers
- Strict-Transport-Security
- Content-Security-Policy
- Clickjacking protection
- X-Content-Type-Options
- Referrer-Policy
- Permissions-Policy
DNS
Who answers for the domain name, and its records.
- DNS provider
- twtrdns.net
- Name servers
- a.r06.twtrdns.net
a.u06.twtrdns.net
b.r06.twtrdns.net
b.u06.twtrdns.net
c.r06.twtrdns.net
c.u06.twtrdns.net
d.r06.twtrdns.net
d.u06.twtrdns.net - Zone
- t.co
- DNSSEC
- Not signed
- Certificates
- Any certificate authority (no CAA record)
All DNS records (13)
| Type | Name | Value | TTL |
|---|---|---|---|
| A | t.co | 162.159.140.229 | 4 |
| NS | t.co | a.r06.twtrdns.net | 6509 |
| NS | t.co | a.u06.twtrdns.net | 6509 |
| NS | t.co | b.r06.twtrdns.net | 6509 |
| NS | t.co | b.u06.twtrdns.net | 6509 |
| NS | t.co | c.r06.twtrdns.net | 6509 |
| NS | t.co | c.u06.twtrdns.net | 6509 |
| NS | t.co | d.r06.twtrdns.net | 6509 |
| NS | t.co | d.u06.twtrdns.net | 6509 |
| TXT | t.co | 1nfb08f5jkpy0flhn6lwml2vk7x34hrd | 293 |
| TXT | t.co | 1z8q6j6wymwb6bh0t3q28tp7vsbgnh6d | 293 |
| TXT | t.co | 48qgbs8f2v055y997kpf4cx2302fzfs2 | 293 |
| TXT | t.co | v=spf1 -all | 293 |
Well protected against spoofing: SPF plus an enforced DMARC policy.
- Mailbox provider
- None
- Allowed senders
- Only servers listed in the SPF record
- SPF
- Mail from any other server is rejected.
- DMARC
- Spoofed mail is rejected.
- MTA-STS
- Not enabled
SPF and DMARC records
v=spf1 -all
v=DMARC1; p=reject; adkim=s; aspf=s; rua=mailto:d@rua.agari.com; ruf=mailto:d@ruf.agari.com; fo=1
Domain registration
The .co registry does not publish RDAP data.
Observed changes
A compact record of what changed between public checks. Rechecks happen only when someone requests them.
History starts with saved public observations. No earlier changes are inferred.
Something look wrong? Report an incorrect result
Tell us which result needs a second look. Reports are reviewed privately and do not change detection automatically. Please do not include personal or confidential information.
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