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Total

100

DNS

Email

Security

Network

100

Availability

Domaincalendly.com

IPv42

IPv62

MX records5

StatusActive

Domain technical report

Free Online Appointment Scheduling Software | Calendly

calendly.com

Calendly is the modern scheduling platform that makes “finding time” a breeze. When connecting is easy, your teams can get more done.

Generated: 2026-08-08T17:20:00-05:00 · Cached result

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IPv42

IPv62

MX5

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

2 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 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

86 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers12 / 35 pts · Security

3 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 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

2 record(s)

104.18.41.175
172.64.146.81

AAAA

2 record(s)

2606:4700:440d::6812:29af
2606:4700:4403::ac40:9251

CNAME

0 record(s)

—

Not configured

MX

5 record(s)

30 aspmx3.googlemail.com.
20 alt2.aspmx.l.google.com.
30 aspmx2.googlemail.com.
10 aspmx.l.google.com.
20 alt1.aspmx.l.google.com.

TXT

49 record(s)

"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.google.com include:mktomail.com ~all"
"MS=ms75363840"
"ePwEbxX6T8GLeUY2"
"calendly-site-verification=JLJojO5SGco45xeUJrgD30rJACtPP9JsvM1TDRUSa"
"parallels-domain-verification=25c15af2f44f426fa520c0f140c5f3b884327a61390a439495a1e7fa2ee9cf92"
"MS=ms26783193"
"google-site-verification=D6kljg6Ozbxz7wkQHTu9bBD58dH48qXc8jbrSvdix20"
"stripe-verification=7708116a2a258908ad3dde9ebc9ab342c43b7000f582962f69a7fdcab307abab"
"TAILSCALE-nNYYC0vC9TISAvboCaQA"
"postman-domain-verification=987281567d45964ffbd83330939d1731ef9199ac6408ad6a641d49813877d64f73114ad25d917bbe3babf4cf554437d1034afcd089f0faf69bbd9c6d9473df5b"
"carta-domain-verification-p6kprv=Hf8pYNQgbK7i64r9SjTorb0sB"
"zoom-domain-verification = afd6de76-b579-11ee-a506-0242ac120002"
"onetrust-domain-verification=0bf92d345265462eb0a4ad38c7b55188"
"06FB0F4CCD"
"google-site-verification=vvI2V5xXtswv19eoBHMvUfLriiS1W3uTeOrHdusW3AI"
"qase-ca7eb2da8082aef5bed402accf262d2bca41fd30"
"miro-verification=c546481c526d7d0fca4b0def39a0700eeb64f077"
"uber-domain-verification=7898f9ad-15df-4820-b779-92b2bec7858b"
"logmein-verification-code=b644b816-e7f4-45df-8215-6ba8db765fe9"
"openai-domain-verification=dv-60PIOwHK0eRDfc2VpmSJ3XY3"
"cursor-domain-verification-tdtnd4=i4bl9JEOFE1VOQbkiMkpIfGQZ"
"pardot986361=84e628bbfec0a11d5baf3b0d9631a46a0e5f6801076cfc694ca8631fc86ee0b2"
"google-site-verification=l9ghJl2k5pCmyzxgB-u7zk1WdLHRxZ8Gev7eo7j6tlw"
"google-site-verification=cDMxTqEGKRREjpULRkV3kxo9fUh9AAOy68UKi-sWFDA"
"jamf-site-verification=iYyCRUNw7_AXFUC7zaLiFw"
"pendo-domain-verification=4dace321-4517-49a6-b51a-ec3478a24002"
"facebook-domain-verification=oiiy3kxhh6i3mzo3tecoolwkzpsqos"
"google-site-verification=CT9vkalOAxTSSlMkSYuif3PPR9IfW9wOMDYCpHV8-pQ"
"pardot906932=75d30f44d6d6e89f6ea5ce36bff2d547056f93c17f7034160851f23f09a2448a"
"pardot906932=d83df604fb40dd187d6c3def3b29591478a195def3dd9223df3d64f3fbabfd0c"
"docusign=26d57faa-4bf8-45cd-866b-a36fdf86e214"
"google-site-verification=4IlbzuraJEuEWHXSF1ealAXGwgl-01bcFI9b6KiPrzw"
"apple-domain-verification=eAu2dlDrzmPvVHPg"
"google-site-verification=fnhE2QNlMBUWS8UBhCtO4N2xU1Hv5Baq_nAGRKrDOS8"
"box-domain-verification=a9f4a950cfdfd3b9cea802a96528ccffbff61184fbb8363037b8cb9eeb1e454c"
"google-site-verification=A_dMlj5RIS-42bZbR1vzM__GBhqE_l-CNAt4kHL39K8"
"h1-domain-verification=jcUKHuDrikH5HZfj3S3op6kzWDJLgLg3d7pmxsKGupBKUPm1"
"jetbrains-domain-verification=1k4crjxnjx7wtlhja236t8jcn"
"citrix-verification-code=ecbbb3b7-9c8c-4b46-81a7-ecd2c6ff42b9"
"loom-site-verification=dfbd3882de7e42d39aa63ac12d8f403e"
"hubspot-developer-verification=MDZjM2Q5Y2QtYjIxOS00ZTllLWIzYzEtMzI2YzYwZTQxY2My"
"atlassian-domain-verification=HeV4orUbu8ZU/Et3BdlguiFnoc5TqgI5owEFFTeBLYX6Lc6BZK4D0ru001VnnLBk"
"slack-domain-verification=025CLyam48F5ppYztUuMl2Ue4prf01SVmyM06BYy"
"adobe-idp-site-verification=db378e2b6b1fbb203e2fa8efb4daacdd0b5837d143bd0020257d69866acc6b55"
"MS=ms75932089"
"google-site-verification=0W2XISvsFG0b1de6rAJqnGOZpeyHioDOc0fCPpkcga0"
"doit-verify295235"
"google-site-verification=spiNl55E3iYMilE9lM2OB67FTeyJVzNJdYsr8YreMiE"
"pardot906932=62a94517bea65a4a146e19a380714f589e54114888b639e208605e1b6b445f47"

NS

2 record(s)

roan.ns.cloudflare.com.
hope.ns.cloudflare.com.

SOA

1 record(s)

hope.ns.cloudflare.com. dns.cloudflare.com. 2411618273 10000 2400 604800 1800

CAA

17 record(s)

0 issuewild "letsencrypt.org"
0 issuewild "godaddy.com"
0 issue "digicert.com; cansignhttpexchanges=yes"
0 issue "godaddy.com"
0 issuewild "pki.goog; cansignhttpexchanges=yes"
0 issuewild "digicert.com; cansignhttpexchanges=yes"
0 issuewild "sectigo.com"
0 issue "pki.goog; cansignhttpexchanges=yes"
0 issue "amazon.com"
0 issue "comodoca.com"
0 issue "letsencrypt.org"
0 issue "sectigo.com"
0 iodef "mailto:platform@calendly.com"
0 issue "ssl.com"
0 issuewild "ssl.com"
0 issuewild "amazon.com"
0 issuewild "comodoca.com"

DS

1 record(s)

2371 13 2 F7900D988B7FD3B292DFCE55754705F86E5E021369DFADF15029C670 1A228F59

DNSKEY

2 record(s)

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

RRSIG

2 record(s)

DS 13 2 86400 20260814003634 20260806232634 41446 com. KSW1ScCPQRLoldB2NrZQdOqn+8KPFMehHoddCWQoHTkQ9hHDTvgXJjYH 5iTLNXLdN2S/DF5vUroLuyjtu1H30w==
CAA 13 2 600 20260809231950 20260807211950 34505 calendly.com. raXpOos64T+lXQ20bmNCc60ecttJHsHlxk202f+hrEUaxiQKKd3O7ZQC r18HsqmK1nBHDQxDzBefosz59cqDVg==

NSEC

1 record(s)

\000.calendly.com. 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 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email include:_spf.google.com include:mktomail.com ~all

DMARC

Configured

v=DMARC1; p=quarantine; rua=mailto:dmarc_agg@vali.email

DKIM

Selector google

v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAgoYp6TWc7oPa0w/CidlSxCH+juAF082yvJV3hyOJ21z7J5LPvpFeZsGFHOjtc5khTdaOqJlt3i1J9gxIJkpu4CRZefnOM7nRGkJMd60YeD3IicTkSRhFfuCm7RMz7YbWpR27lXGssmG4+ihqefnGgsX1c2vDRHFfkVD2qYa0YtGuNgqdqb/4auSL31TcqwtywWRbkhiTrS6aP9t9jCzLpQ2vSU6iczMlWKNmNbUCSpv/Zrj2qBag+vgYx/TolkA2u1mgOcHkxoboXjP9X0rG2kGDhYyR7FwUufmN6klQkbzxgf9GTBcjjZANSj0SwHBOVUw3q73DjvYHHD+K3uBoeQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Free Online Appointment Scheduling Software | Calendly

Description

Calendly is the modern scheduling platform that makes “finding time” a breeze. When connecting is easy, your teams can get more done.

Final URL

https://calendly.com/

HTTP status

206

HTTP

Status

HTTP/2 200

Final URL

https://calendly.com/

Version

Server

cloudflare

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Google Trust Services

calendly.com

Valid from

2026-08-05T12:07:34-05:00

Valid until

2026-11-03T12:07:21-06:00

Days remaining

Protocol

TLSv1.3

Cipher

TLS_AES_256_GCM_SHA384

Security headers

3 active

✓

HSTSImplemented

—

Content Security PolicyNot detected

✓

X-Content-Type-OptionsImplemented

—

X-Frame-OptionsNot detected

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

✓

Cross-Origin-Opener-PolicyImplemented

—

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

104.18.41.175, 172.64.146.81

70,85 ms

Cloudflare

1.1.1.1

104.18.41.175, 172.64.146.81

44,20 ms

Quad9

9.9.9.9

104.18.41.175, 172.64.146.81

40,23 ms

OpenDNS

208.67.222.222

104.18.41.175, 172.64.146.81

51,01 ms

AdGuard

94.140.14.14

104.18.41.175, 172.64.146.81

59,63 ms

IP, geolocation and ASNAssociated network information

104.18.41.175

No data

success

country

region

city

asn

organization

isp

172.64.146.81

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

aspmx3.googlemail.com

Port 25: Closed/unreachable - 23.6 ms - 
Port 465: Closed/unreachable - 4032.8 ms - 
Port 587: Closed/unreachable - 4018.6 ms -

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