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85
Total
75
DNS
90
Email
84
Security
65
Network
100
Availability
Domainbarracuda.com
IPv42
IPv60
MX records2
StatusActive
Domain technical report

Cybersecurity Solutions: Email, Apps, Network, Data | Barracuda Networks

barracuda.com

Barracuda Networks is the worldwide leader in Email Protection, Application Protection, Network Security, and Data Protection Solutions

Generated: 2026-08-10T05:32:59-05:00 · Cached result

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IPv42
IPv60
MX2
NS4

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

4 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 policy5 / 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.

✓
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

56 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers19 / 35 pts · Security

5 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: aa089eb6179d1ae2b.awsglobalaccelerator.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 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)
13.248.160.137
76.223.34.124

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
10 d160221a.ess.barracudanetworks.com.
20 d160221b.ess.barracudanetworks.com.

TXT

14 record(s)
"docker-verification=4036f4a1-faff-4603-8753-b74dedf567b2"
"canva-site-verification=a5HKM87oESVB_13YUbWMCA"
"atlassian-sending-domain-verification=a64d7f26-b6df-4601-846d-0ae6ef66564d"
"flexera-domain-verification-nfrdfwbjfbowmflw"
"dtm-domain-verification=bBLGGxqlFrsoxh9QyrfBSYwNyQLrY9_K9-vKvCYvrIc"
"zywave-domain-verification=taZh87wAyJeOaz8ABRIyolddDHFfUMNStE7Q7tFwcEM="
"atlassian-domain-verification=xrwSeGELssOA70sdpwcsPWiiFa1BYSMJYIXsgGhc6u6pC6cnjGLebasi6OWCwLhA"
"100d9f30ca54b18d14821dc88fea0631"
"v=spf1 include:spf1.barracuda.com include:spf2.barracuda.com -all"
"dell-technologies-domain-verification=barracuda.com_765a4e6e-d16a-4d77-a51d-d81855e9f40f_1766252758"
"google-site-verification=YP3W-dtPQ5E67nIlLlEmbOFvi2nbEyZCc8f86KA6sl8"
"jamf-site-verification=ON-U4904iX94tP3BopL7lA"
"bd67a665e7c74ebdb53d42e240bdcd42"
"smartsheet-site-validation=XgQ1536tt_yOo-6_DbhKyqQtFOQ7cAB0"

NS

4 record(s)
ns4-07.azure-dns.info.
ns1-07.azure-dns.com.
ns2-07.azure-dns.net.
ns3-07.azure-dns.org.

SOA

1 record(s)
ns1-07.azure-dns.com. root.barracuda.com.barracuda.com. 2041020597 7200 3600 86400 3600

CAA

4 record(s)
0 issue "amazon.com"
0 issue "letsencrypt.org"
0 iodef "mailto:hostmaster@barracuda.com"
0 issue "digicert.com"

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 include:spf1.barracuda.com include:spf2.barracuda.com -all

DMARC

Configured
v=DMARC1; p=reject; fo=1; rua=mailto:rua+barracuda.com@dmarc.barracudanetworks.com; ruf=mailto:ruf+barracuda.com@dmarc.barracudanetworks.com

DKIM

Selector selector1
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbjVZCv6ZcpX8nFvmpMaxceKIYHY+67srwDIrtYYmuAYotPWGWE2l2hH6lUD33usDjkWoNhEwXt4vlKjxWAv47UIXo/ZiCnea6XuDoEy/tPWJGlL1P8NvuRxSLdfageDH+r3SuG85c1rGBUwVzfhQtFDj0ZzyJovj8r0ymtmtxkwIDAQAB; n=1024,1452135016,1467859816

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
Cybersecurity Solutions: Email, Apps, Network, Data | Barracuda Networks
Description
Barracuda Networks is the worldwide leader in Email Protection, Application Protection, Network Security, and Data Protection Solutions
Final URL
https://www.barracuda.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.barracuda.com/
Version
3
Server
urllo
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
barracuda.com
Valid from
2026-07-07T11:21:52-05:00
Valid until
2026-10-05T11:21:51-05:00
Days remaining
56
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

5 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
X-Frame-OptionsImplemented
—
Referrer PolicyNot detected
✓
Permissions PolicyImplemented
—
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
13.248.160.137, 76.223.34.124
24,61 ms
Cloudflare
1.1.1.1
13.248.160.137, 76.223.34.124
18,60 ms
Quad9
9.9.9.9
13.248.160.137, 76.223.34.124
36,02 ms
OpenDNS
208.67.222.222
13.248.160.137, 76.223.34.124
26,60 ms
AdGuard
94.140.14.14
13.248.160.137, 76.223.34.124
67,07 ms

IP, geolocation and ASNAssociated network information

13.248.160.137

No data
success
No
country
region
city
asn
organization
isp

76.223.34.124

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

d160221a.ess.barracudanetworks.com

Port 25: Closed/unreachable - 8.7 ms - 
Port 465: Closed/unreachable - 4028.7 ms - 
Port 587: Closed/unreachable - 14 ms - 220 mail.ess.barracuda.com ESMTP (mx-inbound10-191.us-east-2a.ess.aws)

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