iamroot.tech
Toggle navigation
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
All tools
Page nav
Page nav
iamroot.tech
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
Internet tools
DNS lookup
DNS propagation check
Port scan + probeing
WHOIS / RDAP lookup
HTTP/S request tool
TLS/SSL certificate check
beta
E-mail DNSBL blacklist check
Reverse DNS
CIDR calculator
beta
ASN database lookup
beta
What is my IPv4 and IPv6?
GeoIP location
QR code generator
Dev tools
Color contrast checker
Color picker
Lorem ipsum generator
URL encode/decode
HTML encode/decode
BASE64 encode/decode
Hash calculator (CRC64 - MD5 - SHA - RIPEMD)
Misc tools
Password generator
World map, day/night + local time
beta
CTRL+D to bookmark
Add to homescreen
×
Tap the 'Share button' at the bottom of the screen:
Scroll down the list, and select 'Add to Home Screen':
Tap the menu icon (3 dots - upper right-hand corner):
and select 'Add to homescreen'.:
Reverse DNS / PTR lookup
Related tools
DNS lookup
alt1.aspmx.l.google.com
DNS propagation check
alt1.aspmx.l.google.com
WHOIS / RDAP lookup
alt1.aspmx.l.google.com
Port scan + probeing
alt1.aspmx.l.google.com
E-mail DNSBL blacklist check
alt1.aspmx.l.google.com
CIDR calculator
beta
IP to CIDR calculation tool with subnet info. The reverse, CIDR ranges to IP addresses, is also possible. Last but not least, it includes a tool for refactoring groups of IPs, domain names, and/or other CIDR ranges.
GeoIP location
alt1.aspmx.l.google.com
PTR lookup of 'alt1.aspmx.l.google.com'
IP lookup
alt1.aspmx.l.google.com
4m
A
209.85.202.26
4m
alt1.aspmx.l.google.com
4m
AAAA
2a00:1450:400b:c00::1a
4m
PTR answers
209.85.202.26
6h
PTR
dg-in-f26.1e100.net
6h
2a00:1450:400b:c00::1a
1h
PTR
dg-in-f26.1e100.net
1h
2a00:1450:400b:c00::1a
1h
PTR
dg-in-x1a.1e100.net
1h
Log
+000
Resolving host 'alt1.aspmx.l.google.com'
+037
IP's found: alt1.aspmx.l.google.com (209.85.202.26), alt1.aspmx.l.google.com (2a00:1450:400b:c00::1a)
+037
Multiple IPs to check - public DNS-resolvers will be used (Google and OpenDNS)
+037
Resolving PTR record of '209.85.202.26'
+059
PTR-record resolved in a total of 20ms. Responding DNS-server: 8.8.8.8.
+059
Resolving PTR record of '2a00:1450:400b:c00::1a'
+083
PTR-record resolved in a total of 22ms. Responding DNS-server: 8.8.8.8.