~/dnsniffer/issuers/british-telecommunications-public-limited-company
▸ How many domains does British Telecommunications Public Limited Company secure?
1
active domains whose current TLS certificate was issued by British Telecommunications Public Limited Company, as of - 0.00% of all attributed domains.
# all records held: 1# subdomains: 0# intermediates: 1# United Kingdom
~/issuers/british-telecommunications-public-limited-company/history·active domains
1
domains secured by British Telecommunications Public Limited Company on 2026-10-29 · ▲ +0 (+0.00%) since 2026-10-29
# y-axis starts at 0, not zero - domain counts move by fractions of a percent a day.
# change over time
30 days
-
90 days
-
1 year
-
# intermediate CAs
| intermediate | country | domains |
|---|---|---|
| BT Indigo TLS CA2 | United Kingdom | 0 |
# faq
- ? How many domains does British Telecommunications Public Limited Company secure?
- British Telecommunications Public Limited Company is the certificate authority for 1 active domains as of October 30, 2026 - 0.00% of every domain DNSniffer can attribute to an issuer.
- ? Is British Telecommunications Public Limited Company gaining or losing market share?
- We do not yet hold a full year of history for British Telecommunications Public Limited Company. The chart above shows everything we have recorded so far.
- ? Which intermediate CAs does British Telecommunications Public Limited Company sign from?
- We have seen 1 intermediates under British Telecommunications Public Limited Company, the busiest being “BT Indigo TLS CA2” with 0 domains. The full list, with per-intermediate counts, is on this page.
- ? Where does this number come from?
- DNSniffer ingests Certificate Transparency logs continuously and records the issuer of the most recent certificate seen for each domain, then snapshots the per-issuer count once a day. It measures how much of the live web a CA currently secures, not how many certificates it has issued over its lifetime.