Domain technical report
Low Cost, High Performance S3 Compatible Object Storage
backblazeb2.com
Backblaze B2 provides unlimited data storage in the cloud at 1/5th the cost of Amazon S3, Microsoft Azure, and Google Cloud.
IPv43
IPv60
MX2
NS2
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71
Total
85
DNS
70
Email
69
Security
65
Network
60
Availability
Domainbackblazeb2.com
IPv43
IPv60
MX records2
StatusActive
DiagnosticsMain findings and recommendations
IPv4 (A)30 / 30 pts · Dns
3 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
2 MX record(s).
SPF25 / 25 pts · Mail
SPF policy published.
DMARC25 / 25 pts · Mail
DMARC policy published.
DKIM0 / 20 pts · Mail
No tested DKIM selector responded.
MTA-STS0 / 5 pts · Mail
Mail transport policy.
TLS-RPT0 / 5 pts · Mail
TLS reporting policy.
Valid TLS certificate55 / 55 pts · Security
33 day(s) remaining.
Certificate lifetime10 / 10 pts · Security
Full points require at least 30 days remaining.
HTTP security headers4 / 35 pts · Security
1 of 9 evaluated headers detected.
PTR reverse DNS30 / 30 pts · Network
PTR: api.backblazeb2.com
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/1.1 405
HTTPS final URL20 / 20 pts · Availability
Final URL uses HTTPS.
DNS and emailPublished records and email configuration
A
3 record(s)104.153.233.180 149.137.130.5 149.137.142.15
AAAA
0 record(s)—
Not configured
CNAME
0 record(s)—
Not configured
MX
2 record(s)10 mx1.forwardemail.net. 20 mx2.forwardemail.net.
TXT
5 record(s)"FAtENs5ngeYmE0ynyszm8o58Wg0RS1M" "v=spf1 redirect=backblazeb2.com.hosted.spf-report.com" "forward-email-site-verification=gzqwSdjK3I" "postman-domain-verification=58e583c8b0566bdeb2991a4c37285ac2cf3382faebf20a0afd0d79119b3b66307325aa18bcec24519fb45dbb7bcf123ef53cb6a09f1029bf583fee76bd2efc5a" "google-site-verification=jgiutAgp_DXTW9Ib4Oc303deFWkcw6rRxHvpQfIEtks"
NS
2 record(s)kirk.ns.cloudflare.com. dolly.ns.cloudflare.com.
SOA
1 record(s)dolly.ns.cloudflare.com. dns.cloudflare.com. 2411545660 10000 2400 604800 1800
CAA
0 record(s)—
Not configured
DS
1 record(s)2371 13 2 59381FD99CD716FB0663A047EB4C03AAAE15C3710568DA5AF47ABDAE 2EFEE3F5
DNSKEY
2 record(s)256 3 13 oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XNEZeqCYKD5ar0IRd8 KqXXFJkqmVfRvMGPmM1x8fGAa2XhSA== 257 3 13 mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopKl+GqJxpVXckHAeF+ KkxLbxILfDLUT0rAK9iUzy1L53eKGQ==
RRSIG
0 record(s)—
Not configured
NSEC
1 record(s)\000.backblazeb2.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
Configuredv=spf1 redirect=backblazeb2.com.hosted.spf-report.com
DMARC
Configuredv=DMARC1;p=reject;pct=100;fo=1;rua=mailto:e5ed3015@mxtoolbox.dmarc-report.com;ruf=mailto:e5ed3015@forensics.dmarc-report.com
DKIM
Not found—
Not configured
Analyzed webpageMetadata and HTTP response
Title and description
ExtractedTitle
Low Cost, High Performance S3 Compatible Object Storage
Description
Backblaze B2 provides unlimited data storage in the cloud at 1/5th the cost of Amazon S3, Microsoft Azure, and Google Cloud.
Final URL
https://www.backblaze.com/cloud-storage
HTTP status
200
HTTP
Status
HTTP/1.1 405
Final URL
https://backblazeb2.com/
Version
2
Server
X-Powered-By
SSL and HTTP securityCertificate, protocol and security headers
SSL certificate
AvailableAvailable
Yes
Issuer
Let's Encrypt
CN
backblazeb2.com
Valid from
2026-06-14T14:08:52-05:00
Valid until
2026-09-12T14:08:51-05:00
Days remaining
33
Protocol
TLSv1.3
Cipher
TLS_AES_128_GCM_SHA256
Security headers
1 activeHSTSImplemented
Content Security PolicyNot detected
X-Content-Type-OptionsNot detected
X-Frame-OptionsNot detected
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
ConsistentConsistent propagation
5 public resolvers queried.
ResolverServerResultLatency
Google
8.8.8.8104.153.233.180, 149.137.130.5, 149.137.142.15
53,64 ms
Cloudflare
1.1.1.1104.153.233.180, 149.137.130.5, 149.137.142.15
27,86 ms
Quad9
9.9.9.9104.153.233.180, 149.137.130.5, 149.137.142.15
31,45 ms
OpenDNS
208.67.222.222104.153.233.180, 149.137.130.5, 149.137.142.15
38,93 ms
AdGuard
94.140.14.14104.153.233.180, 149.137.130.5, 149.137.142.15
57,24 ms
IP, geolocation and ASNAssociated network information
104.153.233.180
No datasuccess
No
country
region
city
asn
organization
isp
149.137.130.5
No datasuccess
No
country
region
city
asn
organization
isp
149.137.142.15
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
mx1.forwardemail.net
Port 25: Closed/unreachable - 2.9 ms - Port 465: Closed/unreachable - 4018 ms - Port 587: Closed/unreachable - 4020.7 ms -