.ch

.ch is a country code top-level domain managed by SWITCH The Swiss Education & Research Network.

Registry facts

TLD	`.ch`
Type	Country Code
TLD manager	SWITCH The Swiss Education & Research Network
IANA status	Active
Script	Latn
RDAP server	None listed in the IANA bootstrap registry (use WHOIS)
IANA record	iana.org/domains/root/db/ch

IANA data: TLD list Version 2026111000, Last Updated Tue Nov 10 07:07:01 2026 UTC; RDAP bootstrap published 2026-10-28; Root Zone Database fetched 2026-11-11.

25.ch domains measuredof 9,971 in the sample

40.0%signed with DNSSEC

72.0%enforce DMARC

66.7%send HSTSof those answering on HTTPS

.ch domains compared with the whole sample

Accent bars: 25 .ch domains. Grey bars: all 9,971 measured domains. Fewer than 50 domains: treat these percentages as rough.

DNSSEC signed 40.0%

all measured 10.6%

SPF record 96.0%

all measured 75.7%

DMARC record 92.0%

all measured 68.0%

DMARC enforced 72.0%

all measured 50.9%

CAA record 32.0%

all measured 20.7%

MTA-STS 16.0%

all measured 3.0%

TLS 1.3 95.8%

all measured 84.9%

HSTS 66.7%

all measured 56.4%

DNS providers

Cloudflare DNS 20.0%

Amazon Route 53 16.0%

Infomaniak 4.0%

IBM NS1 Connect 4.0%

Azure DNS 4.0%

Email providers

Microsoft 365 (Exchange Online) 36.0%

Google Workspace 20.0%

Proton Mail 4.0%

Certificate authorities

Let's Encrypt 32.0%

Google Trust Services 20.0%

SwissSign 16.0%

Sectigo 12.0%

DigiCert 8.0%

Amazon Trust Services 4.0%

Popular .ch domains in the sample

threema.chadmin.chhostpoint.chethz.chcern.chgoogle.chipcc.chinfomaniak.chsbb.chswisscom.chsrf.chiso.ch

Check one yourself:

WHOIS lookup Inspect DNSSEC Check SSL certificate

Other TLDs in the sample

.com · 5078 .net · 785 .org · 434 .ru · 291 .io · 206 .jp · 202 .de · 181 .edu · 125 .gov · 114 .in · 107

Source: our own scan of November 2026 (2026-11-11), 9,971 of the top 10,000 domains of the Tranco list Y895G that answered in DNS. Method and data.