Results for: csper.io

Timestamp: 9/11/2026, 12:58:57 AM

Domain Score & Recommendations

Domain Score: 98/100

1 issue detected

MTA-STSMTA-STS Testing Modeinfo

The MTA-STS policy is in testing mode.

Remediation: Change the policy mode to 'enforce' when ready.

Domain Score

DMARC

Record

v=DMARC1; p=reject; rua=mailto:68dd2389d1b5d67eb85df0a0@in.dmarcdefender.io

DNS Requests

Type	Domain	Result	Time	Error
TXT	_dmarc.csper.io	v=DMARC1; p=reject; rua=mailto:68dd2389d1b5d67eb85df0a0@in.dmarcdefender.io	28 ms

DMARC Record

SPF

Record

v=spf1 include:_spf.google.com include:mailgun.org ~all

DNS Requests

Type	Domain	Result	Time	Error
TXT	csper.io	google-site-verification=bQJ4kaK9rpUO4NR3iIS3JyHas3mKlMRATjXZGFdWLEs, v=spf1 include:_spf.google.com include:mailgun.org ~all	7 ms

SPF Record

SPF Lookup Tree

csper.io(6 lookups)

v=spf1 include:_spf.google.com include:mailgun.org ~all

include:_spf.google.com(1 lookups)

v=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4864::/56 ip6:2404:6800:4864::/56 ip6:2607:f8b0:4864::/56 ip6:2800:3f0:4864::/56 ip6:2a00:1450:4864::/56 ip6:2c0f:fb50:4864::/56 ~all

include:mailgun.org(5 lookups)

v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all

include:_spf.mailgun.org(3 lookups)

v=spf1 include:_spf1.mailgun.org include:_spf2.mailgun.org ~all

include:_spf1.mailgun.org(1 lookups)

v=spf1 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 ip4:204.220.92.0/22 ~all

include:_spf2.mailgun.org(1 lookups)

v=spf1 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ~all

include:_spf.eu.mailgun.org(1 lookups)

v=spf1 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/20 ~all

~all(0 lookups)

DNS Requests

Type	Domain	Result	Time
TXT	csper.io	google-site-verification=bQJ4kaK9rpUO4NR3iIS3JyHas3mKlMRATjXZGFdWLEs, v=spf1 include:_spf.google.com include:mailgun.org ~all	7 ms
TXT	_spf.google.com	v=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4864::/56 ip6:2404:6800:4864::/56 ip6:2607:f8b0:4864::/56 ip6:2800:3f0:4864::/56 ip6:2a00:1450:4864::/56 ip6:2c0f:fb50:4864::/56 ~all	2 ms
TXT	mailgun.org	google-site-verification=FIGVOKZm6lQFDBJaiC2DdwvBy8TInunoGCt-1gnL4PA, v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all, yahoo-verification-key=6SqcA173NI/sqCJxeUdqWBdMhCYOvO3l8KcWWDpf0qY=, 8f7088gv5932jxw9lwwd1b6ttx2pw2ds, _8nu1z7buo055obs89jw55hkjzooc4nm, _zowlnczhs3ly3yr8wkbffswsqqbijle, bm875fk62qjqg22ls9c0hzvp69fg6v45	2 ms
TXT	_spf.mailgun.org	v=spf1 include:_spf1.mailgun.org include:_spf2.mailgun.org ~all	1 ms
TXT	_spf1.mailgun.org	v=spf1 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 ip4:204.220.92.0/22 ~all	1 ms
TXT	_spf2.mailgun.org	v=spf1 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ~all	1 ms
TXT	_spf.eu.mailgun.org	v=spf1 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/20 ~all	2 ms

SPF Lookup Tree

DKIM Records

Selector	Key Size	Record
googlecsper.io	2048	v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvtmKI514qtdqioxRnnONfX6aeDtepubwJP+nwuvNjnw8JRrVXqxaBpiQxN0Ngqm3Tr4fPkEVMdySnQX5mTMo/hUTQXAKromYgf1N2SnYy8EpA6I32ADoPDRSRl6R/3oqB+NlET2dGwU7cBHABBLBp+N2j8TVYPbi9Vw2OogClpBFDU8I3hIXz5L2gKM3fuDl8kGLS1P8pVbCTgq11IwBWLd47KEEWI3dH8Cva5hZcBsmRGoB80pySex5tee7DYVA/QFAuHGXAcnhfenMkAZlrPdlxVaUcUveFJqnkAEL7Bv5bSGQu8WrVsfXg6ifR2Hdk4DOuXZcYZNoG1RIINeezwIDAQAB

DNS Requests

Type	Domain	Result	Time	Error
TXT	google._domainkey.csper.io	v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvtmKI514qtdqioxRnnONfX6aeDtepubwJP+nwuvNjnw8JRrVXqxaBpiQxN0Ngqm3Tr4fPkEVMdySnQX5mTMo/hUTQXAKromYgf1N2SnYy8EpA6I32ADoPDRSRl6R/3oqB+NlET2dGwU7cBHABBLBp+N2j8TVYPbi9Vw2OogClpBFDU8I3hIXz5L2gKM3fuDl8kGLS1P8pVbCTgq11IwBWLd47KEEWI3dH8Cva5hZcBsmRGoB80pySex5tee7DYVA/QFAuHGXAcnhfenMkAZlrPdlxVaUcUveFJqnkAEL7Bv5bSGQu8WrVsfXg6ifR2Hdk4DOuXZcYZNoG1RIINeezwIDAQAB	26 ms

DKIM Records

BIMI Record

No BIMI record found for domain

DNS Requests

Type	Domain	Result	Time	Error
TXT	default._bimi.csper.io		14 ms	ENOTFOUND

BIMI Record

TLS-RPT Record

v=TLSRPTv1; rua=https://dmarcdefender.io/api/v1/tlsrpt/68dd2389d1b5d67eb85df0a0

DNS Requests

Type	Domain	Result	Time	Error
TXT	_smtp._tls.csper.io	v=TLSRPTv1; rua=https://dmarcdefender.io/api/v1/tlsrpt/68dd2389d1b5d67eb85df0a0	5 ms

TLS-RPT Record

MTA-STS Record

v=STSv1; id=1780825864528

version: STSv1
mode: testing
mx: *.google.com
mx: *.googlemail.com
max_age: 86400

Policy URL

https://mta-sts.csper.io/.well-known/mta-sts.txt

DNS Requests

Type	Domain	Result	Time	Error
TXT	_mta-sts.csper.io	v=STSv1; id=1780825864528	80 ms

MTA-STS Record

DNS Provider

Provider

Google Domains

Nameservers

ns-cloud-a4.googledomains.com
ns-cloud-a1.googledomains.com
ns-cloud-a2.googledomains.com
ns-cloud-a3.googledomains.com

DNS Provider

MX Records

Priority	Mail Server
1	aspmx.l.google.com
5	alt1.aspmx.l.google.com
5	alt2.aspmx.l.google.com
10	aspmx3.googlemail.com
10	aspmx2.googlemail.com

MX Records

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SPF Lookup Tree

csper.io(6 lookups)

v=spf1 include:_spf.google.com include:mailgun.org ~all

include:_spf.google.com(1 lookups)

v=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4864::/56 ip6:2404:6800:4864::/56 ip6:2607:f8b0:4864::/56 ip6:2800:3f0:4864::/56 ip6:2a00:1450:4864::/56 ip6:2c0f:fb50:4864::/56 ~all

include:mailgun.org(5 lookups)

v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all

include:_spf.mailgun.org(3 lookups)

v=spf1 include:_spf1.mailgun.org include:_spf2.mailgun.org ~all

include:_spf1.mailgun.org(1 lookups)

v=spf1 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 ip4:204.220.92.0/22 ~all

include:_spf2.mailgun.org(1 lookups)

v=spf1 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ~all

include:_spf.eu.mailgun.org(1 lookups)

~all(0 lookups)

DNS Requests

Type	Domain	Result	Time
TXT	csper.io	google-site-verification=bQJ4kaK9rpUO4NR3iIS3JyHas3mKlMRATjXZGFdWLEs, v=spf1 include:_spf.google.com include:mailgun.org ~all	7 ms
TXT	_spf.google.com	v=spf1 ip4:74.125.0.0/16 ip4:209.85.128.0/17 ip6:2001:4860:4864::/56 ip6:2404:6800:4864::/56 ip6:2607:f8b0:4864::/56 ip6:2800:3f0:4864::/56 ip6:2a00:1450:4864::/56 ip6:2c0f:fb50:4864::/56 ~all	2 ms
TXT	mailgun.org	google-site-verification=FIGVOKZm6lQFDBJaiC2DdwvBy8TInunoGCt-1gnL4PA, v=spf1 include:_spf.mailgun.org include:_spf.eu.mailgun.org -all, yahoo-verification-key=6SqcA173NI/sqCJxeUdqWBdMhCYOvO3l8KcWWDpf0qY=, 8f7088gv5932jxw9lwwd1b6ttx2pw2ds, _8nu1z7buo055obs89jw55hkjzooc4nm, _zowlnczhs3ly3yr8wkbffswsqqbijle, bm875fk62qjqg22ls9c0hzvp69fg6v45	2 ms
TXT	_spf.mailgun.org	v=spf1 include:_spf1.mailgun.org include:_spf2.mailgun.org ~all	1 ms
TXT	_spf1.mailgun.org	v=spf1 ip4:159.135.224.0/20 ip4:69.72.32.0/20 ip4:204.220.90.0/23 ip4:204.220.92.0/22 ~all	1 ms
TXT	_spf2.mailgun.org	v=spf1 ip4:161.38.192.0/20 ip4:143.55.224.0/21 ip4:143.55.232.0/22 ip4:159.112.240.0/20 ip4:198.244.48.0/20 ip4:204.220.168.0/21 ip4:204.220.176.0/20 ~all	1 ms
TXT	_spf.eu.mailgun.org	v=spf1 ip4:141.193.32.0/23 ip4:159.135.140.80/29 ip4:159.135.132.128/25 ip4:161.38.204.0/22 ip4:87.253.232.0/21 ip4:185.189.236.0/22 ip4:185.211.120.0/22 ip4:185.250.236.0/22 ip4:143.55.236.0/22 ip4:198.244.60.0/22 ip4:204.220.160.0/20 ~all	2 ms