`libbitcoin.info`

DNSSEC	⚠️ Not signed
A	185.199.108.153^{🇺🇸 Fastly185.199.108.0/24 GitHub - 185.199.108.0/24}
		PTR	`cdn-185-199-108-153.github.com`
A	185.199.109.153^{🇺🇸 Fastly185.199.109.0/24 GitHub - 185.199.109.0/24}
A	185.199.110.153^{🇺🇸 Fastly185.199.110.0/24 GitHub - 185.199.110.0/24}
A	185.199.111.153^{🇺🇸 Fastly185.199.111.0/24 GitHub - 185.199.111.0/24}
NS	`ns5.pairnic.com` ⭐
		A	2607:f440::d85c:35f^{🇺🇸 AS78592607:f440::/32 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns5.pairnic.com`
		A	216.92.3.95^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns5.pairnic.com`
NS	`ns6.pairnic.com`
		A	2607:f441::d892:c0f6^{🇺🇸 AS78592607:f441::/32 Pair Networks, Inc. 2403 Sidney St STE 210 Pittsburgh PA 15203 United States}
			PTR	`ns6.pairnic.com`
		A	216.146.192.246^{🇺🇸 AS7859216.146.192.0/19 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`ns6.pairnic.com`
MX	`fwdlb.pairnic.com` ⭐
		A	216.92.3.120^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`fwdlb.pairnic.net`
MX	`mx1.pairnic.com`⁽¹⁰⁾
		A	216.92.3.20^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mx1.pairnic.net`
MX	`mx2.pairnic.com`⁽¹⁰⁾
		A	216.92.3.21^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mx2.pairnic.net`
MX	`mx3.pairnic.com`⁽¹⁰⁾
		A	216.92.3.22^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mx3.pairnic.net`
MX	`mx4.pairnic.com`⁽¹⁰⁾
		A	216.92.3.23^{🇺🇸 AS7859216.92.0.0/16 Pair Networks, Inc. 2403 Sidney St. STE 210 Pittsburgh, PA 15203}
			PTR	`mx4.pairnic.net`
			PTR	`mx5.pairnic.net`
SOA	`ns5.pairnic.com`root@pair.com 2021-03-19 #73

`info`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.info.afilias-nst.info` ⭐
	NS	`a2.info.afilias-nst.info`
	NS	`b0.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`b2.info.afilias-nst.org` ⚠️ Not in parent delegation
	NS	`c0.info.afilias-nst.info`
	NS	`d0.info.afilias-nst.org` ⚠️ Not in parent delegation
	SOA	`a0.info.afilias-nst.info`hostmaster@donuts.email serial=1778551725

WOT: SAFE (28/100)

Subdomains

www.libbitcoin.info

Same first word

libbitcoin.org

libbitcoin.info

libbitcoin.github.io

Similar names

bitcoinlib.readthedocs.io

DNS History

11 records (11 active, 0 former)

●NSns5.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●NSns6.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●MXfwdlb.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●MXmx1.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●MXmx2.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●MXmx3.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●MXmx4.pairnic.com2026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●A185.199.108.1532026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●A185.199.109.1532026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●A185.199.110.1532026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

●A185.199.111.1532026-02-18 → 2026-05-12 · 2 obs

● 2026-02-18 06:14:10
● 2026-05-12 02:41:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
info	a0.info.afilias-nst.info, c0.info.afilias-nst.info, a2.info.afilias-nst.info	-
libbitcoin.info	ns5.pairnic.com, ns6.pairnic.com	-

✅ Authoritative Response

Server:216.92.3.95

NS records: ns5.pairnic.com, ns6.pairnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for libbitcoin.info (unsigned zone)

⏱️ Timing

Total: 2052ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`185.199.108.153, 185.199.111.153...`
NS	2	`NS6.PAIRNIC.COM, NS5.PAIRNIC.COM`
MX	5	`mx2.pairnic.com (pri: 10), fwdlb.pairnic.com (pri: 5)...`
SOA	1	`ns5.pairnic.com root.pair.com`

Analysis

Hierarchy

libbitcoin.info is the parent of www.libbitcoin.info.

IP Addresses

libbitcoin.info points to four IP numbers: 185.199.108.153, 185.199.109.153, 185.199.110.153 and 185.199.111.153.

For instance, other host names eastercreche.com, aubrie.ca, essienboi.site, hackthehackathon.org and www.tdrev.github.io share IP numbers with libbitcoin.info.

Name Servers

libbitcoin.info is delegated to two name servers: ns5.pairnic.com and ns6.pairnic.com.

libbitcoin.info uses the same name server setup as other domains such as plaitter.com, nyurp.com, 3-creditscores.com, sped1.org and mpbx.org.

libbitcoin.info shares name servers with other domains at least partially, for instance osocreations.net and tcna.us.

Host names with two IP numbers:

ns5.pairnic.com points to 2607:f440::d85c:35f and 216.92.3.95; ns6.pairnic.com points to 2607:f441::d892:c0f6 and 216.146.192.246.

Mail Servers

Five mail servers handle libbitcoin.info: fwdlb.pairnic.com, mx1.pairnic.com, mx2.pairnic.com, mx3.pairnic.com and mx4.pairnic.com.

libbitcoin.info shares mail servers with other domains at least partially; for instance machler.com, eighteenrabbit.com, moleitau.com, bethyoung.org and gwenix.com.