Domain technical report
Zemanta - Programmatic Ad Technology Built for Performance
zemanta.com
Zemanta offers Zemanta One, the world’s first multi-channel demand-side platform (DSP) built for performance.
IPv41
IPv62
MX7
NS2
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86
Total
75
DNS
90
Email
81
Security
85
Network
100
Availability
Domainzemanta.com
IPv41
IPv62
MX records7
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
1 IPv4 address(es) detected.
IPv6 (AAAA)10 / 10 pts · Dns
2 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 chain0 / 15 pts · Dns
Both DS and DNSKEY are required.
CAA policy5 / 5 pts · Dns
Certificate authority restriction.
DNS propagation0 / 10 pts · Dns
Agreement between public resolvers.
MX records20 / 20 pts · Mail
7 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
109 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers16 / 35 pts · Security
4 of 9 evaluated headers detected.
PTR reverse DNS30 / 30 pts · Network
PTR: a23-8-65-190.deploy.static.akamaitechnologies.com
IPv4 diversity20 / 35 pts · Network
Two or more IPv4 addresses receive full points.
IPv6 connectivity35 / 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
1 record(s)23.8.65.190
AAAA
2 record(s)2600:1407:3c00:ea5::3892 2600:1407:3c00:e9d::3892
CNAME
0 record(s)—
Not configured
MX
7 record(s)10 alt1.aspmx.l.google.com. 20 aspmx5.googlemail.com. 5 aspmx.l.google.com. 20 aspmx4.googlemail.com. 10 alt2.aspmx.l.google.com. 20 aspmx3.googlemail.com. 20 aspmx2.googlemail.com.
TXT
8 record(s)"google-site-verification=EF6lSUTuDg5vAqCqBm99r1FrHNip5y3UERQ-2RRNOhs" "MS=ms62516944" "google-site-verification=vR_uk7OYIGrzyAOgB-n5bnPBH-X09xqCRY5vnJNkAOg" "hR/zqNWYJWPldW6YT/he61d7YsTLoDqudUtuvEVNMf0=" "google-site-verification=jjnxlxivlJQhxLr5mICVMV51QGMUsNb5YLF3sCgmV4g" "v=spf1 include:_spf1.zemanta.com include:_spf.google.com include:spf.tipalti.com include:mailgun.org include:_spf.salesforce.com ~all" "198667287-8448313" "google-site-verification=fyu6P6tT0QefWipol0D_s771Aans2DOai3WaiNJ07N4"
NS
2 record(s)ian.ns.cloudflare.com. ivy.ns.cloudflare.com.
SOA
1 record(s)ian.ns.cloudflare.com. dns.cloudflare.com. 2410925278 10000 2400 604800 1800
CAA
13 record(s)0 issuewild "ssl.com" 0 issue "ssl.com" 0 issue "amazonca.com" 0 iodef "email:caa@teads.com" 0 issue "letsencrypt.org" 0 issue "amazon.com" 0 issuewild "digicert.com; cansignhttpexchanges=yes" 0 issuewild "letsencrypt.org" 0 issue "comodoca.com" 0 issue "pki.goog; cansignhttpexchanges=yes" 0 issuewild "pki.goog; cansignhttpexchanges=yes" 0 issue "digicert.com; cansignhttpexchanges=yes" 0 issuewild "comodoca.com"
DS
0 record(s)—
Not configured
DNSKEY
0 record(s)—
Not configured
RRSIG
0 record(s)—
Not configured
NSEC
0 record(s)—
Not configured
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
Configuredv=spf1 include:_spf1.zemanta.com include:_spf.google.com include:spf.tipalti.com include:mailgun.org include:_spf.salesforce.com ~all
DMARC
Configuredv=DMARC1; p=quarantine; sp=none; rua=mailto:re+30935511bcb8@inbound.dmarcdigests.com; pct=100
DKIM
Selector googlev=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgS+uOprgtYLD3YMxyLp0bMKdc0chB00nPfmiPJ/9xXHS+DM9o/auBtVngrmhw0WyA0KwU4FaIxcoKL0u9LvyjMAQ3Jyy5mFtEL0fGFEONMdE/JaoH4Pm8lEmLsrOK6kY2tMmG7xlsaWZUYNog7SorNKnRR26dm3QYs6L36DPLikVDZbvR/6wGQ/lBdp4x13MVABCmHag5ImdpkD6Teq8rba5OOC94HE2UmHQ9zVoUVBG0Ri0m7WKGwONmEyqQm96DdFyeefa89KtDv/RWAQeMTmks7pyjJdfT79xgwjUKTPkhnAP14rryxc+CvkmR/yZwX2rfDXs6hu6nCfgB8dFHwIDAQAB
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Zemanta - Programmatic Ad Technology Built for Performance
Description
Zemanta offers Zemanta One, the world’s first multi-channel demand-side platform (DSP) built for performance.
Final URL
https://www.zemanta.com/
HTTP status
206
HTTP
Status
HTTP/2 200
Final URL
https://www.zemanta.com/
Version
3
Server
nginx
X-Powered-By
WP Engine
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
DigiCert Inc
CN
*.zemanta.com
Valid from
2026-05-13T19:00:00-05:00
Valid until
2026-11-28T17:59:59-06:00
Days remaining
109
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384
Security headers
4 activeHSTSImplemented
Content Security PolicyImplemented
X-Content-Type-OptionsNot detected
X-Frame-OptionsImplemented
Referrer PolicyImplemented
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
ReviewDifferences detected
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.823.8.65.190
55,40 ms
Cloudflare
1.1.1.123.12.19.20
59,22 ms
Quad9
9.9.9.996.16.247.150
63,90 ms
OpenDNS
208.67.222.22223.8.65.190
45,24 ms
AdGuard
94.140.14.140.0.0.0
73,71 ms
IP, geolocation and ASNAssociated network information
23.8.65.190
No datasuccess
No
country
region
city
asn
organization
isp
Visitor information
Visitorip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No
SMTPEmail port connectivity
alt1.aspmx.l.google.com
Port 25: Closed/unreachable - 0.7 ms - Port 465: Closed/unreachable - 4020.7 ms - Port 587: Closed/unreachable - 4020.9 ms -