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79
Total
70
DNS
90
Email
73
Security
50
Network
100
Availability
Domainsimplybook.me
IPv41
IPv60
MX records7
StatusActive
Domain technical report

SimplyBook.me - Free Appointment Booking System

simplybook.me

Online booking system. Booking website or widget for your own website. Let clients schedule appointments, get reminders and pay online 24/7. Free version!

Generated: 2026-08-10T22:56:25-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv60
MX7
NS5

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

5 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 policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 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

59 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers8 / 35 pts · Security

2 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: ns5033134.ip-148-113-208.net

i
IPv4 diversity20 / 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

1 record(s)
148.113.208.213

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

7 record(s)
30 ASPMX5.GOOGLEMAIL.COM.
30 ASPMX2.GOOGLEMAIL.COM.
20 ALT1.ASPMX.L.GOOGLE.COM.
10 ASPMX.L.GOOGLE.COM.
20 ALT2.ASPMX.L.GOOGLE.COM.
30 ASPMX3.GOOGLEMAIL.COM.
30 ASPMX4.GOOGLEMAIL.COM.

TXT

9 record(s)
"_globalsign-domain-verification=qQvhL_KTSIcgWJi9LS4lanzx7gm1Geq5xeoficPyta"
"hubspot-3g4k3VgbCmH4"
"amazonses:9PwArEczAIknlc1JasRZxGIBSd6jFfl82GGVvh//2kA=\010"
"google-site-verification=AxcOVP8866dv7Bm8x4vI4oH4AecXlrLfUVcY7xeRklg"
"google-site-verification=qGn8ygh4LzgY4zNZFuF_xnRo7PiS8YW_mXU9nPgqt60"
"v=spf1 ip4:109.74.204.32 ip4:153.92.254.133  ip4:172.105.4.156 ip4:143.42.109.183 ip6:2a01:7e00::f03c:91ff:feae:c632 ip6:2600:3c04::f03c:92ff:fe4f:9f0 ip6:2a01:7e00::f03c:93ff:fe45:d0cf include:_spf.google.com include:_spf.psm.knowbe4.com  -all"
"knowbe4-site-verification=388f92ad50c26686bccd3d3e98779d19"
"Sendinblue-code:d47a0b9e6f584de09e68294e31f655fc"
"_globalsign-domain-verification=hsngFGEkJ28cP3328G0NcaWT5K-dtI2FCC4L1SrApD"

NS

5 record(s)
ns1.linode.com.
ns2.linode.com.
ns5.linode.com.
ns3.linode.com.
ns4.linode.com.

SOA

1 record(s)
ns1.linode.com. mikhail\.b.gmail.com. 2021000081 14400 14400 1209600 86400

CAA

0 record(s)
—

Not configured

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

Configured
v=spf1 ip4:109.74.204.32 ip4:153.92.254.133  ip4:172.105.4.156 ip4:143.42.109.183 ip6:2a01:7e00::f03c:91ff:feae:c632 ip6:2600:3c04::f03c:92ff:fe4f:9f0 ip6:2a01:7e00::f03c:93ff:fe45:d0cf include:_spf.google.com include:_spf.psm.knowbe4.com  -all

DMARC

Configured
v=DMARC1; p=none; sp=none; aspf=r; adkim=r; pct=100; rua=mailto:rua@simplybook.me

DKIM

Selector mail
k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDeMVIzrCa3T14JsNY0IRv5/2V1/v2itlviLQBwXsa7shBD6TrBkswsFUToPyMRWC9tbR/5ey0nRBH0ZVxp+lsmTxid2Y2z+FApQ6ra2VsXfbJP3HE6wAO0YTVEJt1TmeczhEd2Jiz/fcabIISgXEdSpTYJhb0ct0VJRxcg4c8c7wIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
SimplyBook.me - Free Appointment Booking System
Description
Online booking system. Booking website or widget for your own website. Let clients schedule appointments, get reminders and pay online 24/7. Free version!
Final URL
https://simplybook.me/en/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://simplybook.me/en/
Version
3
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
simplybook.me
Valid from
2026-07-11T09:04:38-05:00
Valid until
2026-10-09T09:04:37-05:00
Days remaining
59
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

2 active
✓
HSTSImplemented
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
✓
X-Frame-OptionsImplemented
—
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
148.113.208.213
93,57 ms
Cloudflare
1.1.1.1
148.113.208.213
184,10 ms
Quad9
9.9.9.9
148.113.208.213
186,14 ms
OpenDNS
208.67.222.222
148.113.208.213
95,46 ms
AdGuard
94.140.14.14
148.113.208.213
251,49 ms

IP, geolocation and ASNAssociated network information

148.113.208.213

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
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

ASPMX5.GOOGLEMAIL.COM

Port 25: Closed/unreachable - 1.2 ms - 
Port 465: Closed/unreachable - 4012.6 ms - 
Port 587: Closed/unreachable - 4021.4 ms -

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