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80
Total
85
DNS
90
Email
100
Security
35
Network
60
Availability
Domainblockchain.info
IPv42
IPv60
MX records5
StatusActive
Domain technical report

Just a moment...

blockchain.info

Generated: 2026-08-10T01:13:46-05:00 · 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 policy0 / 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

77 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

✓
HTTP security headers35 / 35 pts · Security

9 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 response0 / 40 pts · Availability

HTTP/2 403

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

2 record(s)
104.16.117.55
104.16.118.55

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

5 record(s)
20 alt1.aspmx.l.google.com.
30 aspmx2.googlemail.com.
10 aspmx.l.google.com.
30 aspmx3.googlemail.com.
20 alt2.aspmx.l.google.com.

TXT

9 record(s)
"google-site-verification=N70QW1CLbk8SytHhHLNHc-J8DCxNPmgyAP2ueTaxono"
"yandex-verification: d9f3f2859b58ce6d"
"atlassian-domain-verification=3Nau9JDz9R67dqvzkIEpQsriloeNPy4vI/eh5acyDnEsG255ANV5Qyed2nE0WK/o"
"google-site-verification=FcNnFGROYe6Yh5FMJ6T3XdwvIkbWtIwzREMEEbnX0YQ"
"anthropic-domain-verification-yd7a79=MXqAD8dd4IelKFle1JyrIkOOs"
"google-site-verification=qRCbhQsR3fxD3ylXPxNwUGUA5DD53PT3Wt9HSzZkPE8"
"_t0jbgqd8x84sclv1k8ycz5xupbcxf92"
"v=spf1 include:sendgrid.net include:_spf.google.com -all"
"google-site-verification=qgYS2zBag9OWLnZ9Xj4HRihaVR0vPlx11_HRRAizW3Y"

NS

2 record(s)
beth.ns.cloudflare.com.
jay.ns.cloudflare.com.

SOA

1 record(s)
beth.ns.cloudflare.com. dns.cloudflare.com. 2411404457 10000 2400 604800 1800

CAA

0 record(s)
—

Not configured

DS

1 record(s)
2371 13 2 D8A781E3FB4CD2923F78B42E1873A26D004CEF84BA35B5C4770F5AEF F6E0FB9B

DNSKEY

2 record(s)
257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA==

RRSIG

5 record(s)
SOA 13 2 1800 20260811071336 20260809051336 34505 blockchain.info. +qtqrj5e7HQYX3j2h5WRTaXPs7AHPPFVuWM22oVCrTgF2dkm9ct/p2BJ FfCL5IXbubgTW9IhLwBnfxX5M6Ioiw==
NS 13 2 86400 20260811071336 20260809051336 34505 blockchain.info. PYUIcWt42I85+qCZcH10RSQknUXmsz2wdZGXzDVhnVo/Cvr0PC2uHB3m dLEJ+Xf7NxrkGl5XwKNM0HBHKhBANA==
MX 13 2 60 20260811071336 20260809051336 34505 blockchain.info. e9cQdGwmGgillOy9MlbazbwFuH76tHfx6JxEDjdMiXeLLwGgibogiIs2 SBJfOBrGGAu0MQ+RpGBSTMmhXGnV2w==
A 13 2 300 20260811071336 20260809051336 34505 blockchain.info. EzlPswRuMhk6+X+EylYuWo8H9/BlBkNZx+0AwffLNWKH8NxukHLhRiFK ZFBpYxjI+RMEoGv53etQ1XEcWBsRDw==
DS 8 2 3600 20260830154211 20260809144211 35784 info. O1uOB/2FDhT8snPrdhlSGgltOa9R6aP5T9Jh55zFzTHAAt/D8F6AKYBb f6dKqg2wyvLbOw8+fQPs05mB0IYQkzQEtZLTedlsvFlA28OM3Q3UMora gpdqatjSkH9JcMXh8Ye84PKRKkifhNjmzaoanDdrduEJ1CPoykB2inaZ adQ=

NSEC

1 record(s)
\000.blockchain.info. 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:sendgrid.net include:_spf.google.com -all

DMARC

Configured
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc-reports@blockchain.info;

DKIM

Selector google
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCQNNLFJBedQogDfE++py2nE3G7FhuZhut2wbUVcfB+Oe7l0t+b+JvlW73funoopP5CilRCfI+553SS0LoR/QF56bIOAKU6uwyn+Uu2ypVBAt5QUy7ZmT0SPjzCIQayGXlfEDfFr8fV71rXNY+MReBHyvhd/70qTBmRSkbIXYdM2QIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Just a moment...
Description
Final URL
https://www.blockchain.com/explorer
HTTP status
403

HTTP

Status
HTTP/2 403
Final URL
https://www.blockchain.com/explorer
Version
3
Server
cloudflare
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert Inc
CN
www.blockchain.com
Valid from
2025-09-24T19:00:00-05:00
Valid until
2026-10-26T18:59:59-05:00
Days remaining
77
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

9 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
✓
Referrer PolicyImplemented
✓
Permissions PolicyImplemented
✓
Cross-Origin-Opener-PolicyImplemented
✓
Cross-Origin-Embedder-PolicyImplemented
✓
Cross-Origin-Resource-PolicyImplemented

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
104.16.117.55, 104.16.118.55
55,96 ms
Cloudflare
1.1.1.1
104.16.117.55, 104.16.118.55
44,42 ms
Quad9
9.9.9.9
104.16.117.55, 104.16.118.55
40,04 ms
OpenDNS
208.67.222.222
104.16.117.55, 104.16.118.55
54,61 ms
AdGuard
94.140.14.14
104.16.117.55, 104.16.118.55
63,13 ms

IP, geolocation and ASNAssociated network information

104.16.117.55

No data
success
No
country
region
city
asn
organization
isp

104.16.118.55

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

alt1.aspmx.l.google.com

Port 25: Closed/unreachable - 0.7 ms - 
Port 465: Closed/unreachable - 4001.9 ms - 
Port 587: Closed/unreachable - 4009.1 ms -

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