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53
Total
70
DNS
90
Email
0
Security
50
Network
60
Availability
Domainbooks.com.tw
IPv41
IPv60
MX records2
StatusActive
Domain technical report

books.com.tw

books.com.tw

Generated: 2026-08-09T18:46:06-05:00 · Cached result

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IPv41
IPv60
MX2
NS5

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

5 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 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.

✓
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 certificate0 / 55 pts · Security

No valid certificate was retrieved.

!
Certificate lifetime0 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: www.books.com.tw

i
IPv4 diversity20 / 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

No successful HTTP response.

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
113.196.250.30

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

2 record(s)
5 mailgw.books.com.tw.
5 mailgw2.books.com.tw.

TXT

2 record(s)
"google-site-verification=9VT-4Vx36cXH6qgImsOhKDRLFR_cq798w6DDWdZgtGI"
"v=spf1 ip4:113.196.250.0/23 ip4:113.196.240.0/23 ip4:122.147.170.162/32 ip4:103.125.228.0/22 ip6:2401:803e:4024:0006::/64 include:_spf.google.com -all"

NS

5 record(s)
ns-cloud-d4.googledomains.com.
ns-cloud-d3.googledomains.com.
ns-cloud-d2.googledomains.com.
nfdns.books.com.tw.
ns-cloud-d1.googledomains.com.

SOA

1 record(s)
ns-cloud-d1.googledomains.com. cloud-dns-hostmaster.google.com. 6 21600 3600 259200 300

CAA

0 record(s)
—

Not configured

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 ip4:113.196.250.0/23 ip4:113.196.240.0/23 ip4:122.147.170.162/32 ip4:103.125.228.0/22 ip6:2401:803e:4024:0006::/64 include:_spf.google.com -all

DMARC

Configured
v=DMARC1; p=none; pct=90; rua=mailto:dmarc@books.com.tw

DKIM

Selector google
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAkslRrLD4lVGoUK1pBtGi+Jff7TOeagHP8wFG4p/9sElpKSQP5dQYVa/QUHCj9g9dUebNOThGaptDgUBmQeTnvNHFpYwZa0Ch/VyjzL0UuqKFZrXuHpZ63wqQyhZ2AHjO4i7bTupGs5aYmwBzoL9kqfkaI51ICatFR0I/qvvFYYVh813ISyl51G4Xuq5dAKSWRyDEqz2F13g6qVbNzVr+bMTdNQ2cmR/eIzF9NACWP2hPEyE+52A3S8juGb6RgIixh+EloWj7tkjZ9FiclqWitZ6aavnD84M/jMOHkJS1jOVivCEkv57Hx/lrkcxV20OaZWURqyY1cmQvnjLQPMe9hwIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

No data
Title
Description
Final URL
https://books.com.tw/
HTTP status

HTTP

Status
Final URL
https://books.com.tw/
Version
0
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Unavailable
Available
No
Issuer
CN
Valid from
Valid until
Days remaining
Protocol
Cipher

Security headers

0 active
—
HSTSNot detected
—
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

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
113.196.250.30
43,19 ms
Cloudflare
1.1.1.1
113.196.250.30
607,28 ms
Quad9
9.9.9.9
113.196.250.30
390,31 ms
OpenDNS
208.67.222.222
113.196.250.30
42,62 ms
AdGuard
94.140.14.14
113.196.250.30
272,72 ms

IP, geolocation and ASNAssociated network information

113.196.250.30

Identified
success
Yes
country
Taiwan
country_code
TW
region
Taipei
city
Taipei
latitude
25.0333862
longitude
121.5646041
asn
9919
organization
New Centry InfoCom Tech. Co., Ltd.
isp
New Century InfoComm Tech Co., Ltd.
timezone
Asia/Taipei

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

mailgw.books.com.tw

Port 25: Closed/unreachable - 36.6 ms - 
Port 465: Closed/unreachable - 4055.5 ms - 
Port 587: Closed/unreachable - 4053.1 ms -

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