.bd

What this means

The root zone holds a DS record for .bd, so the extension is signed and anchored. A domain under .bd can use DNSSEC with a full chain of trust: it needs to be signed at its DNS host and have its own DS at the registrar. .bd is the country code for Bangladesh; its registry sets who can register.

Second-level suffixes under .bd (14)

You can register names directly under .bd or under these suffixes, for example example.co.bd. Some are restricted to certain users (government, education, banks). Source: the Public Suffix List.

• .ac.bd
• .ai.bd
• .co.bd
• .com.bd
• .edu.bd
• .gov.bd
• .id.bd
• .info.bd
• .it.bd
• .mil.bd
• .net.bd
• .org.bd
• .sch.bd
• .tv.bd

IDN names under .bd

No IDN tables for .bd at IANA: names are usually ASCII only (a–z, 0–9 and hyphen).

Length

DNS limits are the same everywhere: each label is 1 to 63 characters, the whole name at most 253, letters, digits and hyphens, not starting or ending with a hyphen. IDN labels count their xn-- form, so fewer native characters fit. A registry can set a higher minimum (often 2 or 3 characters) or reserve short names: that is in its own policy.

WHOIS and RDAP

This extension is not in IANA's RDAP list. There is no classic WHOIS server (port 43): since January 2025 ICANN lets gTLD registries offer RDAP only.

Lifecycle and drop

Country code extensions set their own lifecycle: grace periods, redemption and release dates differ from country to country and are not covered by ICANN's gTLD policies. Read the registry's rules: https://bdia.btcl.com.bd/.

More: Country code

• .be
• .bf
• .bg
• .bh
• .bi
• .bj
• .bm
• .bn
• .bo
• .br
• .bs
• .bt
• .bv
• .bw
• .by
• .bz

All domain extensions →

Learn DNSSEC

• Where DNS came from
• How domain names work
• Domain extensions (TLDs)
• How to enable DNSSEC
• The DS record
• The DNSKEY record
• The RRSIG record
• NSEC and NSEC3
• KSK, ZSK and key rollover
• DNSSEC algorithms
• The AD flag
• DNSSEC troubleshooting