Calt.com 中国运载火箭技术研究院官网

Calt.com Overview

Calt.com belongs to CNIX-AP China Networks Inter-Exchange, CN. Check the list of other websites hosted by CNIX-AP China Networks Inter-Exchange, CN.

In terms of rank-to-traffic ratio, calt.com has 1,531 unique users per day, viewing 3,093 pages. The rank based value of calt.com is 2,333 USD. Every user makes 2.16 pageviews on average.

Calt.com boasts a link base consisting of 238 referring domains and 250 external backlinks, as revealed by the data obtained from web network scanning.

Calt.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in September 09, 2024, calt.com has an expired SSL certificate issued by China Financial Certification Authority (expired on April 01, 2023). Click button “Update” SSL Information at the Safety Information section. Check the list of websites using SSL by China Financial Certification Authority.

Based on data from our sources calt.com is probably an unsafe domain.

According the Mobile-Friendly test by Google calt.com is nice optimized for mobile devices and tablets.

Calt.com Website Safety

logo
Overview
Last Updated: 03/27/2026
Overall result - calt.com is not safe.
We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.
Norton connect safe logo
Norton Connect Safe
Last Updated: 02/18/2026
calt.com is safe.
Norton ConnectSafe evaluates calt.com for any unsafe and insecure content. The results are critical for families with young children.
Google logo
Google Safe Search
Last Updated: 01/06/2020
calt.com is not safe.
SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.
Google safe brwosing logo
Google Safe Browsing
Last Updated: 01/09/2019
calt.com is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
McAfee logo
Site Advisor
Last Updated: 03/06/2021
calt.com is safe.
McAfee assesses calt.com for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze calt.com for mature or inappropriate content, only security checks are evaluated.
Web of trust logo
Web of Trust
Last Updated: 03/27/2026
calt.com child safety is unknown.
The WOT calculates reputation of the calt.com. This reputation system receives ratings from users and information from third-party sources, assesses the calt.com for safety features and confirms, whether calt.com is suitable for children.

SSL Information
Domainwww.astfc.com
Issuer OrganizationChina Financial Certification Authority
IssuerCFCA OV OCA
AlgorithmRSA-SHA256
Valid form04/01/2022
Expiration04/01/2023
SignedCertificate is not self signed
Additional Domains www.astfc.com

Calt.com Rank History

Calt.com Hosting Information

Server Location

ASN Information

Last Update: 09/06/2025

% [whois.apnic.net]
% Whois data copyright terms http://www.apnic.net/db/dbcopyright.html

% Information related to 'AS4608 - AS4864'

as-block: AS4608 - AS4864
descr: APNIC ASN block
remarks: These AS numbers are further assigned by APNIC
remarks: to APNIC members and end-users in the APNIC region
admin-c: HM20-AP
tech-c: HM20-AP
mnt-by: APNIC-HM
mnt-lower: APNIC-HM
last-modified: 2008-09-04T06:40:26Z
source: APNIC

role: APNIC Hostmaster
address: 6 Cordelia Street
address: South Brisbane
address: QLD 4101
country: AU
phone: +61 7 3858 3100
fax-no: +61 7 3858 3199
e-mail: helpdesk@apnic.net
admin-c: AMS11-AP
tech-c: AH256-AP
nic-hdl: HM20-AP
remarks: Administrator for APNIC
notify: hostmaster@apnic.net
mnt-by: MAINT-APNIC-AP
last-modified: 2013-10-23T04:06:51Z
source: APNIC

% Information related to 'AS4847'

% Abuse contact for 'AS4847' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS4847
as-name: CNIX-AP
descr: China Networks Inter-Exchange
descr: Using International Link at Beijing
descr: Connect to Sprint Link Intl and Global Sprint Link
country: CN
import: from AS1792
action pref=100;
accept ANY
import: from AS4000
action pref=100;
accept ANY
export: to AS3460
announce ANY
export: to AS3717
announce ANY
admin-c: LZ1-AP
tech-c: WZ1-CN
mnt-by: MAINT-CHINANET-CN
mnt-irt: IRT-CHINANET-CN
remarks: hostmaster@apnic.net 960910
last-modified: 2015-12-01T22:09:32Z
source: APNIC

irt: IRT-CHINANET-CN
address: No.31 ,jingrong street,beijing
address: 100032
e-mail: anti-spam@ns.chinanet.cn.net
abuse-mailbox: anti-spam@ns.chinanet.cn.net
admin-c: CH93-AP
tech-c: CH93-AP
auth: # Filtered
mnt-by: MAINT-CHINANET
last-modified: 2010-11-15T00:31:55Z
source: APNIC

person: Liang Zhiping
address: Data Communication Bureau
address: Ministry of Posts and Telecommunications
address: 40,Xue Yuan Road
address: Beijing 1000083
country: CN
phone: +86-10-62053944
fax-no: +86-10-62053995
e-mail: lzp@public.bta.net.cn
nic-hdl: LZ1-AP
mnt-by: MAINT-NULL
last-modified: 2008-09-04T07:29:13Z
source: APNIC

person: Wanshu Zhou
address: Data Communication Bureau MPT
address: 40 Xueyuan Rd.
address: Beijing China 100083
country: CN
phone: +86-10-205-3992
fax-no: +86-10-205-3994
e-mail: zhouws@public.bta.net.cn
nic-hdl: WZ1-CN
notify: zhouws@public.bta.net.cn
notify: zhang@usai.asiainfo.com
mnt-by: MAINT-NULL
last-modified: 2011-12-22T05:14:24Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US4)

Calt.com Domain Registration and Settings

WHOIS

Domain Name: CALT.COM
Registry Domain ID: 336761_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.guoxuwang.cn
Registrar URL: http://www.xdns.cn
Updated Date: 2021-12-09T10:41:01Z
Creation Date: 1997-07-06T04:00:00Z
Registry Expiry Date: 2023-07-05T04:00:00Z
Registrar: Beijing Guoxu Network Technology Co., Ltd.
Registrar IANA ID: 1494
Registrar Abuse Contact Email: abuse@guoxuwang.cn
Registrar Abuse Contact Phone: +86.4008092218
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS1.VIPXDNS.COM
Name Server: NS2.VIPXDNS.NET
Name Server: NS3.VIPXDNS.INFO
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-09-12T10:37:49Z


DNS Records
HostA RecordTTL
calt.com1.202.156.263600
calt.com114.242.111.343600
HostMX RecordPriorityTTL
HostNS RecordTTL
calt.comns3.guoxuwang.com3600
calt.comns1.guoxuwang.com3600
calt.comns2.guoxuwang.com3600
calt.comns4.guoxuwang.com3600
HostTXT RecordTTL

root.guoxuwang.cn
TTL: 3600
Email address: rname.invalid
Serial: 12
Refresh: 43200
Retry: 3600
Expire: 2419200
Minimum: 3600

Calt.com HTML Check


Errors
Warnings

Calt.com Desktop Performance

Last tested: 05/25/2017

Speedometer image
Desktop Speed
66%

Desktop Resource Breakdown
Total Resources25
Number of Hosts1
Static Resources24
JavaScript Resources2
CSS Resources2

Calt.com Mobile Insights

Last tested: 05/24/2017

Speedometer image
Mobile Usability
64%
Speedometer image
Mobile Speed
60%

Mobile Resource Breakdown
Total Resources27
Number of Hosts2
Static Resources24
JavaScript Resources3
CSS Resources2

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