DNS Report: bartleby.com

Generated: 2026-08-08T23:58:46-05:00

70/100

Diagnostics

StatusCheckPointsDetails
OKIPv4 (A)30/304 IPv4 address(es) detected.
ERRORIPv6 (AAAA)0/100 IPv6 address(es) detected.
OKName server redundancy20/204 NS record(s); 2 or more required.
OKSOA record10/10Authoritative zone record.
ERRORDNSSEC chain0/15Both DS and DNSKEY are required.
ERRORCAA policy0/5Certificate authority restriction.
ERRORDNS propagation0/10Agreement between public resolvers.
OKMX records20/205 MX record(s).
OKSPF25/25SPF policy published.
OKDMARC25/25DMARC policy published.
OKDKIM20/20A DKIM selector was verified.
ERRORMTA-STS0/5Mail transport policy.
ERRORTLS-RPT0/5TLS reporting policy.
OKValid TLS certificate55/55116 day(s) remaining.
OKCertificate lifetime10/10Full points require at least 30 days remaining.
WARNINGHTTP security headers8/352 of 9 evaluated headers detected.
OKPTR reverse DNS30/30PTR: server-18-154-185-63.ord58.r.cloudfront.net
OKIPv4 diversity35/35Two or more IPv4 addresses receive full points.
ERRORIPv6 connectivity0/35AAAA availability.
OKDNS resolution40/40At least one address family must resolve.
ERRORHTTP response0/40HTTP/2 403
OKHTTPS final URL20/20Final URL uses HTTPS.

DNS Records

TipoValues
A
18.154.185.63
18.154.185.24
18.154.185.2
18.154.185.26
AAAA
CNAME
MX
5 alt1.aspmx.l.google.com.
10 alt4.aspmx.l.google.com.
10 alt3.aspmx.l.google.com.
1 aspmx.l.google.com.
5 alt2.aspmx.l.google.com.
TXT
"v=spf1 include:mail.zendesk.com include:aspmx.sailthru.com include:_spf.google.com include:amazonses.com -all"
"google-site-verification=if283_BqzxKUiaBzg7TFTuC1rNlnsHAtdH_zi5a_T6Q"
"botify-site-verification=WNWNnK3oxQyk4eo62Wkpj4Kb68anV52S"
"slack-domain-verification=b8qsltduJ23SiCOecYw2lTqQVLxe7dnDS7sp1Ipb"
"atlassian-domain-verification=XDHtvWctzfZz5dFPy2tEI2x3D1sN1EwUUEzo9EmmtnuAh8p9x3g3MzYmq/331pyG"
"facebook-domain-verification=cd0p4jbcrovz1p8uazmkvahduqva4c"
"google-site-verification=gcZDN7Jlh0L4rSRamS8hp69BT7kQE1o4f36tfOZBjIs"
"MS=ms37443491"
"google-site-verification=upx1QcrSllUfo-VOB1xNPArJfjC7h4o3Cy0xrVDIWdE"
NS
ns-1563.awsdns-03.co.uk.
ns-44.awsdns-05.com.
ns-1443.awsdns-52.org.
ns-663.awsdns-18.net.
SOA
ns-1443.awsdns-52.org. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400
CAA
DS
DNSKEY
RRSIG
NSEC
NSEC3
SRV
NAPTR
TLSA
SSHFP