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60
Total
70
DNS
20
Email
65
Security
20
Network
100
Availability
Domainfocus.cn
IPv41
IPv60
MX records1
StatusActive
Domain technical report

北京房地产_北京房产网_北京房产信息网-北京焦点网

focus.cn

北京焦点网为购房者提供北京房产信息、家居装修资讯，北京房产楼盘详情、买房流程、业主论坛、家居装修等全面内容信息，北京焦点网互联网的购房平台。

Generated: 2026-08-10T02:16:09-05:00 · Cached result

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IPv41
IPv60
MX1
NS7

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

7 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

1 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
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

107 day(s) remaining.

✓
Certificate lifetime10 / 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 DNS0 / 30 pts · Network

PTR not detected.

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 response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
61.135.164.48

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
10 focusmail.focus.cn.

TXT

0 record(s)
—

Not configured

NS

7 record(s)
;; communications error to 69.64.44.20#53: timed out
ns13.sohu.com.
ns16.sohu.com.
ns11.sohu.com.
ns12.sohu.com.
ns14.sohu.com.
ns15.sohu.com.

SOA

1 record(s)
ns11.sohu.com. dnsadmin.sohu-inc.com. 170601001 28800 7200 1209600 60

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

1 record(s)
;; communications error to 69.64.44.20#53: timed out

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
北京房地产_北京房产网_北京房产信息网-北京焦点网
Description
北京焦点网为购房者提供北京房产信息、家居装修资讯，北京房产楼盘详情、买房流程、业主论坛、家居装修等全面内容信息，北京焦点网互联网的购房平台。
Final URL
https://house.focus.cn/
HTTP status
200

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://house.focus.cn/
Version
2
Server
openresty
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert, Inc.
CN
*.focus.cn
Valid from
2025-10-28T19:00:00-05:00
Valid until
2026-11-25T17:59:59-06:00
Days remaining
107
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

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
61.135.164.48
1.284,32 ms
Cloudflare
1.1.1.1
61.135.164.48
103,36 ms
Quad9
9.9.9.9
61.135.164.48
245,88 ms
OpenDNS
208.67.222.222
61.135.164.48
1.055,91 ms
AdGuard
94.140.14.14
61.135.164.48
254,38 ms

IP, geolocation and ASNAssociated network information

61.135.164.48

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

focusmail.focus.cn

Port 25: Closed/unreachable - 1834.3 ms - 
Port 465: Closed/unreachable - 4006.5 ms - 
Port 587: Closed/unreachable - 4003.5 ms -

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