ketcau.com ▷ KETCAU.COM - Diễn đàn của các kỹ sư kết cấu Việt Nam

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 6.21 sec.
Last Checked: 04/29/2024

Ketcau.com traffic volume is 1,343 unique daily visitors and their 2,149 pageviews. The web value rate of ketcau.com is 42,179 USD. Each visitor makes around 1.71 page views on average.

By Alexa's traffic estimates ketcau.com placed at 72,529 position over the world, while the largest amount of its visitors comes from Viet Nam, where it takes 4,076 place.

Perfect for ketcau.com that their data center (provided by company company NHANHOA-AS-VN NhanHoa Software company, VN) is located in Viet Nam, as that empowers most of the visitors to reduce the page load time. See the list of other web pages hosted by NHANHOA-AS-VN NhanHoa Software company, VN.

Ketcau.com registered under .COM top-level domain. Check other websites in .COM zone.

The last verification results, performed on (April 29, 2024) ketcau.com show that ketcau.com has an invalid SSL certificate. Click “Refresh” button for SSL Information at the Safety Information section.

In accordance with Google Safe Browsing, Google Safe Search and Symantec ketcau.com is pretty a safe domain.

Relying Google MobileFriendly test ketcau.com is well optimized for mobile and tablet devices, however web page loading speed may be improved.

Ketcau.com General Information

Global Rank

340,611

Average Load Time

1.50sec

Links In Count

116

Website Value

$39,420

Audience Geography. Where are ketcau.com visitors located?

Country	Visitors
Viet Nam VN	98.7%
Other	1.3%

Country	Pageviews
Viet Nam VN	97.9%
Other	2.1%

Country	Rank
Viet Nam VN	4076

Where do visitors go on ketcau.com?

Subdomain	Pageviews
ketcau.com	100%

Subdomain	Pageviews per User
ketcau.com	1.2

Subdomain	Reach
ketcau.com	100%

How popular is ketcau.com?

Period	Global Rank	Global Rank Delta
past 3 months	340611	52971
past month	450371	186348
past week	395621	-63789
yesterday	393832	-34174

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	468364	93890	7	-24.5%	1.6	-10.93%
30	700906	350582	4	-59.877%	1.2	-32.79%
7	616279	-83550	6	20%	1.2	0.8%
1	582172	81297	5	-14.66%	1	-35.9%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	310693	39732	17	-15.2%
30	379977	130836	13	-40.04%
7	333339	-54712	16	20%
1	325518	-52866	2	30%

Ketcau.com Safety Information

Overview

Last Updated: 04/29/2024

Overall result - ketcau.com is 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

Last Updated: 03/28/2024

ketcau.com is safe.

Norton ConnectSafe evaluates ketcau.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 02/17/2019

ketcau.com is 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 Browsing

Last Updated: 01/09/2019

ketcau.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.

Site Advisor

Last Updated: 02/27/2021

ketcau.com is safe.

McAfee assesses ketcau.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 ketcau.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 04/29/2024

ketcau.com child safety is unknown.

The WOT calculates reputation of the ketcau.com. This reputation system receives ratings from users and information from third-party sources, assesses the ketcau.com for safety features and confirms, whether ketcau.com is suitable for children.

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
Domain	Unknown
Issuer Organization	Unknown
Issuer	Unknown
Algorithm	Unknown
Valid form	Unknown
Expiration	Unknown
Signed	No information
Additional Domains

Ketcau.com Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 131353
ASN Title: NHANHOA-AS-VN NhanHoa Software company, VN

Last Update: 10/05/2023

ASN Whois

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

% Information related to 'AS131072 - AS132095'

as-block: AS131072 - AS132095
descr: APNIC 32-bit 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: 2009-09-29T05:34:08Z
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 'AS131342 - AS131441'

as-block: AS131342 - AS131441
descr: VNNIC-4byte-ASBLOCK-AP
descr: VNNIC
descr: Vietnam Network Information Center
country: VN
admin-c: TMT17-AP
tech-c: NHT16-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-VN-VNNIC
last-modified: 2015-08-05T00:58:15Z
source: APNIC

person: Nguyen Hong Thang
nic-hdl: NHT16-AP
e-mail: tech@vnnic.vn
address: Vietnam Internet Network Information Center
address: 18 Nguyen Du, Hai Ba Trung, Hanoi
phone: +84-4-35564944
fax-no: +84-4-37821462
country: VN
mnt-by: MAINT-VN-VNNIC
last-modified: 2015-08-04T01:56:01Z
source: APNIC

person: Tran Minh Tan
nic-hdl: TMT17-AP
e-mail: info@vnnic.vn
address: Vietnam Internet Network Information Center
address: 18 Nguyen Du, Hai Ba Trung, Hanoi
phone: +84-4-35564944
fax-no: +84-4-37821462
country: VN
mnt-by: MAINT-VN-VNNIC
last-modified: 2015-08-04T01:56:01Z
source: APNIC

% Information related to 'AS131353'

% Abuse contact for 'AS131353' is 'hm-changed@vnnic.vn'

aut-num: AS131353
as-name: NHANHOA-AS-VN
descr: NhanHoa Software company
descr: 32 Vo Van Dung, Dong Da, Ha Noi
country: VN
import: from AS18403 action pref=10; accept ANY
import: from AS7552 action pref=10; accept ANY
import: from AS7643 action pref=10; accept ANY
export: to AS18403 announce AS131353
export: to AS7552 announce AS131353
export: to AS7643 announce AS131353
admin-c: LTTH3-AP
tech-c: HTD1-AP
mnt-by: MAINT-VN-VNNIC
mnt-routes: MAINT-VN-VNNIC
mnt-irt: IRT-VNNIC-AP
last-modified: 2012-02-02T04:38:03Z
source: APNIC

irt: IRT-VNNIC-AP
address: Ha Noi, VietNam
phone: +84-24-35564944
fax-no: +84-24-37821462
e-mail: hm-changed@vnnic.vn
abuse-mailbox: hm-changed@vnnic.vn
admin-c: NTTT1-AP
tech-c: NTTT1-AP
auth: # Filtered
mnt-by: MAINT-VN-VNNIC
last-modified: 2017-11-08T09:40:06Z
source: APNIC

person: Ho Trung Dung
nic-hdl: HTD1-AP
e-mail: dunght@nhanhoa.com.vn
address: Nhan Hoa Company
phone: +84-24-35626533
fax-no: +84-24-35626359
country: VN
mnt-by: MAINT-VN-VNNIC
last-modified: 2017-07-24T11:09:22Z
source: APNIC

person: Le Thi Thu Hoa
nic-hdl: LTTH3-AP
e-mail: contact@nhanhoa.com
address: NhanHoa Software company
address: 32 Vo Van Dung, Dong Da, Ha Noi
phone: +84-4-35626533
fax-no: +84-4-35626359
country: vn
mnt-by: MAINT-VN-VNNIC
last-modified: 2011-12-15T06:28:01Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-46 (WHOIS-US3)

Ketcau.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: KETCAU.COM
Registry Domain ID: 122002303_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.nhanhoa.com
Registrar URL: http://www.nhanhoa.com
Updated Date: 2015-10-08T01:38:35Z
Creation Date: 2004-06-08T06:47:56Z
Registry Expiry Date: 2025-06-08T06:47:56Z
Registrar: Nhan Hoa Software Company Ltd.
Registrar IANA ID: 1710
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS2001.NHANHOA.COM
Name Server: NS2002.NHANHOA.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-05-12T09:37:27Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL
ketcau.com	171.244.140.54	3600

Host	MX Record	Priority	TTL
ketcau.com	ASPMX4.GOOGLEMAIL.com	30	3600
ketcau.com	ASPMX5.GOOGLEMAIL.com	30	3600
ketcau.com	ASPMX.L.GOOGLE.com	10	3600
ketcau.com	ALT1.ASPMX.L.GOOGLE.com	20	3600
ketcau.com	ALT2.ASPMX.L.GOOGLE.com	20	3600
ketcau.com	ASPMX2.GOOGLEMAIL.com	30	3600
ketcau.com	ASPMX3.GOOGLEMAIL.com	30	3600

Host	NS Record	TTL
ketcau.com	ns3.zonedns.vn	3600
ketcau.com	ns2.zonedns.vn	3600
ketcau.com	ns1.zonedns.vn	3600

Host	TXT Record	TTL
ketcau.com	google-site-verification=aUOzeXSlgK8m7hv1qycADnn88ywEHc_p-hQy0kqQHdA	3600

ns1.zonedns.vn
TTL: 3600
Email address: root.ketcau.com
Serial: 2019051705
Refresh: 1200
Retry: 600
Expire: 1209600
Minimum: 3600

Ketcau.com HTML Validation

HTML Validation Tool

Errors

Almost standards mode doctype. Expected “<!DOCTYPE html>”.

Bad value “Pragma” for attribute “http-equiv” on element “meta”.

Bad value “Expires” for attribute “http-equiv” on element “meta”.

Bad value “Cache-Control” for attribute “http-equiv” on element “meta”.

A document must not include more than one “meta” element with its “name” attribute set to the value “description”.

Bad start tag in “img” in “head”.

Element “head” is missing a required instance of child element “title”.

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Stray end tag “noscript”.

Element “title” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Stray end tag “head”.

Start tag “body” seen but an element of the same type was already open.

The “width” attribute on the “table” element is obsolete. Use CSS instead.

The “cellpadding” attribute on the “table” element is obsolete. Use CSS instead.

The “cellspacing” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “table” element is obsolete. Use CSS instead.

The “border” attribute on the “table” element is obsolete. Use CSS instead.

The “width” attribute on the “td” element is obsolete. Use CSS instead.

The “valign” attribute on the “td” element is obsolete. Use CSS instead.

The “bgcolor” attribute on the “table” element is obsolete. Use CSS instead.

The “align” attribute on the “td” element is obsolete. Use CSS instead.

The “bgcolor” attribute on the “td” element is obsolete. Use CSS instead.

Stray end tag “font”.

The “size” attribute on the “hr” element is obsolete. Use CSS instead.

The “color” attribute on the “hr” element is obsolete. Use CSS instead.

The “font” element is obsolete. Use CSS instead.

Element “hr” not allowed as child of element “font” in this context. (Suppressing further errors from this subtree.)

“td” start tag in table body.

Stray end tag “tr”.

The “align” attribute on the “img” element is obsolete. Use CSS instead.

Row 21 of a row group established by a “tbody” element has no cells beginning on it.

Row 24 of a row group established by a “tbody” element has no cells beginning on it.

Bad value “80%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.

Element “object” is missing one or more of the following attributes: “data”, “type”.

Stray end tag “param”.

Stray end tag “embed”.

Stray end tag “a”.

Row 41 of a row group established by a “tbody” element has no cells beginning on it.

The “align” attribute on the “div” element is obsolete. Use CSS instead.

Bad value “100%” for attribute “width” on element “embed”: Expected a digit but saw “%” instead.

Stray end tag “template”.

The “nowrap” attribute on the “td” element is obsolete. Use CSS instead.

Table column 4 established by element “td” has no cells beginning in it.

The “align” attribute on the “tr” element is obsolete. Use CSS instead.

Duplicate attribute “style”.

Saw “"” when expecting an attribute name. Probable cause: “=” missing immediately before.

Attribute “"” not allowed on element “a” at this point.

The “center” element is obsolete. Use CSS instead.

End tag “br”.

Bad value “” for attribute “action” on element “form”: Must be non-empty.

Attribute “height” not allowed on element “table” at this point.

Attribute “href” not allowed on element “div” at this point.

Attribute “rel” not allowed on element “div” at this point.

Table column 3 established by element “td” has no cells beginning in it.

Too many messages.

Warnings

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

A table row was 0 columns wide, which is less than the column count established by the first row (1).

A table row was 3 columns wide, which is less than the column count established by the first row (4).

Attribute “"” is not serializable as XML 1.0.

Text run is not in Unicode Normalization Form C.

A table row was 2 columns wide, which is less than the column count established by the first row (3).

The “language” attribute on the “script” element is obsolete. You can safely omit it.

Ketcau.com Desktop Insights

Last tested: 01/04/2017

Desktop

Desktop Speed

39%

Optimize images

Leverage browser caching

Enable compression

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Reduce server response time

Minify JavaScript

Minify CSS

Desktop Resource Breakdown

Total Resources	91
Number of Hosts	11
Static Resources	73
JavaScript Resources	15
CSS Resources	1

Ketcau.com Mobile Insights

Last tested: 11/05/2017

Mobile

Mobile Usability

61%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Avoid plugins

Mobile Speed

51%

Leverage browser caching

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Optimize images

Enable compression

Reduce server response time

Minify JavaScript

Minify CSS

Mobile Resource Breakdown

Total Resources	107
Number of Hosts	17
Static Resources	79
JavaScript Resources	25
CSS Resources	2

Ketcau.com Typos

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Ketcau.com KETCAU.COM - Diễn đàn của các kỹ sư kết cấu Việt Nam

Home Description

Quick Summary

Ketcau.com General Information

Ketcau.com Safety Information

Ketcau.com Server Information

Ketcau.com Domain Name Information

Ketcau.com HTML Validation

Ketcau.com Desktop Insights

Ketcau.com Mobile Insights

Ketcau.com Nearest Competitors

Ketcau.com Typos