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80
Total
85
DNS
50
Email
77
Security
100
Network
100
Availability
Domainktvu.com
IPv42
IPv62
MX records0
StatusActive
Domain technical report

KTVU FOX 2 San Francisco | Local News, Weather, and Live Streams | KTVU

ktvu.com

Local and breaking news reports from around the Bay Area, brought to you by KTVU FOX 2, serving San Francisco, Oakland, San Jose and the entire Bay Area.

Generated: 2026-08-09T14:49:38-05:00 · Cached result

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IPv42
IPv62
MX0
NS8

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

8 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 propagation0 / 10 pts · Dns

Agreement between public resolvers.

!
MX records0 / 20 pts · Mail

0 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

25 day(s) remaining.

i
Certificate lifetime6 / 10 pts · Security

Full points require at least 30 days remaining.

i
HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: a23-200-156-135.deploy.static.akamaitechnologies.com

✓
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)
23.200.156.135
23.200.156.143

AAAA

2 record(s)
2600:1407:3c00:1868::17dc:9005
2600:1407:3c00:1868::17dc:900f

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

5 record(s)
"GT6fqmrtOekYhCM2Ho8t/Bh81DvtRwBHCvqEpq1nwJ0="
"78x53ALLMSGa2mkZnDUDMRXvD545qbaaUROigzp9hmM="
"mksnwhfq51bf21w9gtv4w645kw5vyhs8"
"google-site-verification=kwj_CayIhA5I7Km05-6bfrHrnBm6UMtUAlyzWZSg82g"
"v=spf1 -all"

NS

8 record(s)
ns03.foxdoua.com.
ns03.dns.fox.
ns02.foxdoua.com.
ns01.dns.fox.
ns04.foxdoua.com.
ns04.dns.fox.
ns02.dns.fox.
ns01.foxdoua.com.

SOA

1 record(s)
dns1.p06.nsone.net. hostmaster.nsone.net. 1786233872 43200 7200 1209600 3600

CAA

0 record(s)
—

Not configured

DS

1 record(s)
48553 13 2 B8B93DBD208E82521BF0AA8537686F69E8E5ACFB27CEED027607D83A 00D5C8EB

DNSKEY

3 record(s)
256 3 13 StkhLrYivFRj91rx0aO6ykg4qWeYhgQxJEwwkTzMBkIYjR/DENsx7p8n 0yfXg4Of/DzazP+vhOLp0Kijh7S5pg==
257 3 13 t+4DPP+MFZ0Cr7gAXiDYv6HTyXzq/O2ESVRLc/ysuh5xBXKIsjsj5baV 1HzhBNo2F7mbsevsEo0/6UEL8+JBmA==
256 3 13 3u9onSaqbxIlglXMHjh5Plcah8n2pXj0QuBVY/6YTdC6L/eUEYPDh57n OVJ8dd3fkPMrjt2Oij6J9EeLqyeuBw==

RRSIG

0 record(s)
—

Not configured

NSEC

1 record(s)
\000.ktvu.com. A NS SOA TXT AAAA RRSIG NSEC DNSKEY

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 -all

DMARC

Configured
v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
KTVU FOX 2 San Francisco | Local News, Weather, and Live Streams | KTVU
Description
Local and breaking news reports from around the Bay Area, brought to you by KTVU FOX 2, serving San Francisco, Oakland, San Jose and the entire Bay Area.
Final URL
https://www.ktvu.com/
HTTP status
206

HTTP

Status
HTTP/2 200
Final URL
https://www.ktvu.com/
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
ktvu.com
Valid from
2026-06-05T17:42:09-05:00
Valid until
2026-09-03T17:42:08-05:00
Days remaining
25
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

4 active
✓
HSTSImplemented
✓
Content Security PolicyImplemented
✓
X-Content-Type-OptionsImplemented
✓
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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
23.200.156.135, 23.200.156.143
50,52 ms
Cloudflare
1.1.1.1
23.200.156.135, 23.200.156.143
27,63 ms
Quad9
9.9.9.9
23.200.156.135, 23.200.156.143
23,55 ms
OpenDNS
208.67.222.222
23.200.156.135, 23.200.156.143
44,61 ms
AdGuard
94.140.14.14
23.58.85.41, 23.58.85.46
51,86 ms

IP, geolocation and ASNAssociated network information

23.200.156.135

No data
success
No
country
region
city
asn
organization
isp

23.200.156.143

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

ktvu.com

Port 25: Closed/unreachable - 0.6 ms - 
Port 465: Closed/unreachable - 4014.8 ms - 
Port 587: Closed/unreachable - 4005.9 ms -

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