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Total

DNS

Email

Security

Network

100

Availability

Domainsender.net

IPv42

IPv60

MX records5

StatusActive

Domain technical report

Sender – Email Marketing Platform for Growing Businesses

sender.net

Automation, transactional emails, deliverability, and 24/7 support — built for growing businesses. Free up to 2,500 subscribers and 15,000 emails/month

Generated: 2026-08-11T04:18:09-05:00 · Cached result

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IPv42

IPv60

MX5

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

✓

DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

✓

CAA policy5 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

5 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

✓

DMARC25 / 25 pts · Mail

DMARC policy published.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

84 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers4 / 35 pts · Security

1 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

✓

IPv4 diversity35 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓

HTTP response40 / 40 pts · Availability

HTTP/2 200

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)

172.66.174.167
104.20.33.17

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

10 alt3.aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
5 alt1.aspmx.l.google.com.
1 aspmx.l.google.com.

TXT

8 record(s)

"yahoo-verification-key=LQhVU2YgneGIzhYjebK7NU+5QaMyx896kRIbYVLLsA4="
"ps-cd-verification=55ed6821-af50-4508-abe1-b82ee73de75e"
"v=spf1 ip4:104.248.86.238 include:sendersrv.com include:_spf.google.com -all"
"google-site-verification=BCTXKPamuSfeMiZFF-5xUo-hPBUHqDpywOnfm-bekyY"
"google-site-verification=rY8joBGRrlSc4P2O-WUdByoVlBT8zUbUgSlzoCsDwiE"
"facebook-domain-verification=b6cq0vhcgczdl2yzdwrvfjw4tykdt6"
"cloudflare_dashboard_sso=5ff8166b814c288c78c5b521df0f73ef"
"apple-domain-verification=KMTtPlj8fftbdx8eQMOzp8EbX0ow2KO4FBKTnqZRGk0"

NS

2 record(s)

james.ns.cloudflare.com.
edna.ns.cloudflare.com.

SOA

1 record(s)

edna.ns.cloudflare.com. dns.cloudflare.com. 2411425299 10000 2400 604800 1800

CAA

10 record(s)

0 issuewild "letsencrypt.org"
0 issue "ssl.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issue "letsencrypt.org"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issuewild "ssl.com"
0 issue "comodoca.com"
0 issuewild "comodoca.com"

DS

1 record(s)

2371 13 2 89A2300A753EA409C2E0739A76FF2D8AD56A46C9FE4B43632E433537 49F15559

DNSKEY

2 record(s)

257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

4 record(s)

SOA 13 2 1800 20260812101759 20260810081759 34505 sender.net. leH4yroLl/I1/+JXM3Pl3kpsYnd5aW28/nAImRbOynBF3AVnBN1UAtLN JSM0r04bSn7sbVPu8iqnGVN+dUa/5w==
TXT 13 2 300 20260812101759 20260810081759 34505 sender.net. EmXTcKP3jFmt0kKi6zs7QjgbMW1LOrGHeywJaykLqr/B8Oj+cvWBS/IJ m1P3wxByeO6sbZ+lTqs4msnI4EynJw==
NS 13 2 86400 20260812055423 20260810035423 34505 sender.net. kDR+4jTeBxuCDvYRZMHKfLLslLf24wShMwSuQ2Z3eOovNCfdX+2iyuRx XxMK+mXTgyIK2ZOl7YRnVQdw5HYKJg==
DS 13 2 86400 20260817033718 20260810022718 7272 net. tCEgcFxZ4jvYQEb7zZMK6hgupC5u6olPEs9Tb1CWSzMylR+QAdGHpSSG eP8W2bRb1iysNp/rgmJ5ywjy8c4GtQ==

NSEC

1 record(s)

\000.sender.net. A NS SOA PTR HINFO MX TXT AAAA LOC SRV NAPTR CERT SSHFP RRSIG NSEC DNSKEY TLSA SMIMEA HIP CDS CDNSKEY OPENPGPKEY SVCB HTTPS URI CAA

NSEC3

0 record(s)

—

Not configured

SRV

0 record(s)

—

Not configured

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 ip4:104.248.86.238 include:sendersrv.com include:_spf.google.com -all

DMARC

Configured

v=DMARC1; p=quarantine; pct=100;rua=mailto:5eca5439e0ee44f094c0ab3d3ab7a87e@dmarc-reports.cloudflare.net;ruf=mailto:dmarc@sender.net

DKIM

Selector google

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqKoozO7kCQjH9Gaxltpyi3CjZorCtTlMER4r4D/dOnwQaMtfGl0Waz7lVnVejIzNfaZcGWITES8xZ9/DFLM32zkLeJIjhg5qCrmxMfc693y/2+O4IMwl/0MqpJgwdYAATkhkBxfBGn3LnptheOeOw1dz9V7nXOFcvAnJG4NVLz9RM0WGTMufrSR6dNnahkLcq7UkgC6HCIzCvI46G0zHRgoLTDYlgPjBpsH64+R876Zy9LWp2JSDHRuFAehR92j9UzhHNLwCSde7QaADjSEchM7RDQHvv4eUbrierGEiOkP4Znlg0R74YTrUkibRbTbr7VOCxtTXNKJe3xSAq4fgVQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Sender – Email Marketing Platform for Growing Businesses

Description

Automation, transactional emails, deliverability, and 24/7 support — built for growing businesses. Free up to 2,500 subscribers and 15,000 emails/month

Final URL

https://www.sender.net/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://www.sender.net/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

sender.net

Valid from

2026-08-05T08:19:43-05:00

Valid until

2026-11-03T08:19:27-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

1 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

—

X-Content-Type-OptionsNot detected

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

104.20.33.17, 172.66.174.167

63,87 ms

Cloudflare

1.1.1.1

104.20.33.17, 172.66.174.167

55,18 ms

Quad9

9.9.9.9

104.20.33.17, 172.66.174.167

49,92 ms

OpenDNS

208.67.222.222

104.20.33.17, 172.66.174.167

41,76 ms

AdGuard

94.140.14.14

104.20.33.17, 172.66.174.167

58,78 ms

IP, geolocation and ASNAssociated network information

172.66.174.167

No data

success

country

region

city

asn

organization

isp

104.20.33.17

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

alt3.aspmx.l.google.com

Port 25: Closed/unreachable - 1.1 ms - 
Port 465: Closed/unreachable - 4007.3 ms - 
Port 587: Closed/unreachable - 4014.3 ms -

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