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 tsmc.com?

Answer

www.tsmc.com is hosted by Google Cloud, delivered through Cloudflare.

High confidenceHTTP/3

Checked 54 minutes ago from Cloudflare ZRH in 114 ms. This is a saved result.

Your next steps

What needs attention

Prioritized observations from this check. Review changes with whoever manages the website.

  1. Improve

    Review browser security headers

    Content-Security-Policy, 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.

Hosting company
Google CloudStrong evidence
CDN / proxy
CloudflareStrong evidence

Network operators

Cloudflare

Network ownership alone does not confirm the retail hosting provider.

How we know

  • 172.66.0.3 belongs to AS13335 (Cloudflare)
  • 162.159.140.3 belongs to AS13335 (Cloudflare)
  • HTTP header cf-ray: a50d83e539ab4335-ZRH
  • HTTP header server: cloudflare
  • HTTP header x-cloud-trace-context: efaebca5caf5740afa00c1d5c1f33e82/17377462385872622205

Servers

The addresses the name points to and the networks that own them.

www.tsmc.com (where the site redirects)

  • 172.66.0.3CloudflareNetwork AS13335🇺🇸 Registered in United States, block 172.66.0.0/22
  • 162.159.140.3CloudflareNetwork AS13335🇺🇸 Registered in United States, block 162.159.128.0/19

tsmc.com (the address you entered)

  • 172.66.0.3CloudflareNetwork AS13335🇺🇸 Registered in United States, block 172.66.0.0/22
  • 162.159.140.3CloudflareNetwork AS13335🇺🇸 Registered in United States, block 162.159.128.0/19

No IPv6 address.

Website

What the site answered when we visited its home page.

Status
200 OK
Address
https://www.tsmc.com/english
Page title
Taiwan Semiconductor Manufacturing Company Limited
HTTPS
Yes
HTTP/3
Supported
Response time
21 ms from Cloudflare ZRH
Server
cloudflare

Redirects (2)

  1. 302https://tsmc.com/
  2. 301https://www.tsmc.com/
  3. 200https://www.tsmc.com/english

Security headers

C
  • Strict-Transport-Security
  • Content-Security-Policy (too weak)
  • Clickjacking protection
  • X-Content-Type-Options
  • Referrer-Policy (too weak)
  • Permissions-Policy

Built with

CMSDrupal
AnalyticsGoogle Analytics
FontsGoogle FontsFont Awesome

DNS

Who answers for the domain name, and its records.

DNS provider
Cloudflare
Name servers
greg.ns.cloudflare.com
luciane.ns.cloudflare.com
Zone
tsmc.com
DNSSEC
Not signed
Certificates
Any certificate authority (no CAA record)
All DNS records (39)
TypeNameValueTTL
Atsmc.com172.66.0.3300
Atsmc.com162.159.140.3300
NStsmc.comgreg.ns.cloudflare.com86400
NStsmc.comluciane.ns.cloudflare.com86400
MXtsmc.com10 mxa-00233401.gslb.pphosted.com300
MXtsmc.com10 mxb-00233401.gslb.pphosted.com300
TXTtsmc.com140ri467a8tip3r1vnv25o06mo300
TXTtsmc.com2ov06064lraftss0vh4olgshkk300
TXTtsmc.com7hj6c9phvanmh67guanthdan1r300
TXTtsmc.com8d2iusbb7irip884hb6ms4s59s300
TXTtsmc.comMS=84100E767556BF704619CA30ABA8C68DFCE0B9CD300
TXTtsmc.comMS=F3CAA82622CD80B33C45CC9B28596A9CB16D9ABC300
TXTtsmc.comMS=ms77757997300
TXTtsmc.comSLuHJUuojxOjaKLBk5wC5Xj6J2bbS2S7-5nkRQSofRY300
TXTtsmc.comakcpnhdqqef2en514hck7ddi67300
TXTtsmc.comapple-domain-verification=tUda5X8CcfnlbC8M300
TXTtsmc.comautodesk-domain-verification=sCb2h4dY5AR2NZB02vfQ300
TXTtsmc.comca3-a1dea913f018440f931158c45a21ddb4300
TXTtsmc.comdocusign=c72cc22a-c348-4c56-ac1a-6e36c665f16d300
TXTtsmc.comduo_sso_verification=iOQAUnu49ZqSE0nVF4joa89JcxztqYG2dPzI2ZFU4nKzdsMbHRxFaL3yjDxnc5UV300
TXTtsmc.comf7ae5354-36b1-4be7-ae29-729f0b43a928300
TXTtsmc.comfigma-domain-verification=2a76a318530de0c2ec06b8b46f02941478c4b4b4d8b44154a14a74c8932ae980-1755571889300
TXTtsmc.comgf51o429n8i2rj31ac7qbelmrs300
TXTtsmc.comgoogle-site-verification=cMyfQq9OyJrveXdXvV4y-vzyys8T8vUtu9U8utLCDMI300
TXTtsmc.comj7ccu3a32nqmq88ac7233fbu7n300
TXTtsmc.comjamf-site-verification=m_Icn7sMcm4g3dK4MYWGZw300
TXTtsmc.comllhf0rjce9veu7c0j483t1km4n300
TXTtsmc.comnuh7vpdbcedno7ms6aeqao1pvb300
TXTtsmc.comoj5o81m0hm93f1fcj4rvaj14qi300
TXTtsmc.comp8c8gphns2mkon2gnqbpojm67a300
TXTtsmc.compexip-ms-tenant-domain-verification=090d1d2f-dd3f-40ad-a618-30d1ad63f773300
TXTtsmc.complpg4fbipkcvj984h86rum24lb300
TXTtsmc.comq4nsr9n12oethm6a4nb91nc1sm300
TXTtsmc.comqu1p2n808gl0garve3ptfgs8lv300
TXTtsmc.comsuccessfactors-site-verification=NGI4NTBhMjFhMjcxZWVmNjExN2IyMjZhNGQyZjk2MWEyOGUwYTAxNzBkYzhiOTQ3YjE5ZDRlMDk2NTk3OGJhMA==300
TXTtsmc.comtpfo8jhdn67j1ba6vqd8a7it2b300
TXTtsmc.comtvj0mirfagv8rdpsil3fkuinek300
TXTtsmc.comv7db7s9q1vqskol3g6hinefhfn300
TXTtsmc.comv=spf1 ip4:12.97.68.128/27 ip4:203.66.245.0/24 ip4:185.132.181.205/32 ip4:185.183.29.212/32 include:_dcomprod.tsmc.com -all300

Email

Well protected against spoofing: SPF plus an enforced DMARC policy.

Mailbox provider
Proofpoint
Mail servers
10 mxa-00233401.gslb.pphosted.com
10 mxb-00233401.gslb.pphosted.com
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 ip4:12.97.68.128/27 ip4:203.66.245.0/24 ip4:185.132.181.205/32 ip4:185.183.29.212/32 include:_dcomprod.tsmc.com -all

v=DMARC1; p=reject; pct=100; rua=mailto:dmarc_admin@tsmc.com,mailto:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc_report1283@dmarcdiscover.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc_admin@tsmc.com,mailto:dmarc_report1283@dmarcdiscover.com; sp=reject; fo=0

Domain registration

Registrar
Gandi SAS
Registered
8 Apr 1993 (33 years ago)
Paid until
9 Apr 2029 (in 895 days)
Last changed
10 Jun 2025
Status
Deletion lock (registrar)Transfer lock (registrar)Update lock (registrar)Deletion lock (registry)Transfer lock (registry)Update lock (registry)
DNSSEC at registry
No
Source
rdap.verisign.com

Connected services

Verification records in DNS show the domain is linked to these accounts.

Microsoft 365AppleDocuSignGoogle Search Console

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.

Last 10 searches

Domain NameHost
reddit.comFastly (host hidden)
dingleberry.comUnknown
trustpilot.comAmazon CloudFront (host hidden)
scamdoc.comCloudflare (host hidden)
example.orgCloudflare (host hidden)
levels.ioCloudflare (host hidden)
hotelist.comCloudflare (host hidden)
nomads.comCloudflare (host hidden)
interiorai.comCloudflare (host hidden)
vibejam.comCloudflare (host hidden)

View the last 500 searches