teachercn.com audit at Webchart

Quick Summary

Online Status

Offline

Server IP address resolved: No
Http response code: None
Last Checked: 06/16/2024

Over the time teachercn.com has been ranked as high as 39,699 in the world, while most of its traffic comes from China, where it reached as high as 43,586 position.

Teachercn.com receives about 1,094 unique visitors and 2,735 pageviews per day. The estimated value of teachercn.com is 52,560 USD. Each unique visitor makes about 2.5 pageviews on average.

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

At the time of the last check (November 15, 2024) teachercn.com has an invalid SSL certificate.

According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust teachercn.com is quite a safe domain.

Mobile-Friendly test indicates that teachercn.com isn't optimized for mobile and tablet devices. Designing your websites to be mobile friendly ensures that your pages perform well on all devices.

Teachercn.com General Information

Global Rank

246,321

Average Load Time

0.69sec

Links In Count

118

Website Value

$52,560

Audience Geography. Where are teachercn.com visitors located?

Country	Rank
China CN	43586

Country	Percent of Pageviews
China CN	98.9%
Other	1.1%

Country	Percent of Visitors
China CN	98.7%
Other	1.3%

How popular is teachercn.com?

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	249364	-24014	22	10%
30	360378	138734	1	-45.93%
7	381380	141602	1	-41.83%

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	278219	27173	15	-10.7%	2.5	-20.39%
30	687555	409622	4	-70.274%	1	-45.12%
7	793724	254995	4	-41.83%	1	0%

Period	Global Rank	Global Rank Delta
past 3 months	246321	-8114
past month	432637	206755
past week	482902	177226

Teachercn.com Alexa Rank History

Alexa Rank shows how popular teachercn.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If teachercn.com has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to teachercn.com and pageviews on teachercn.com over the past 3 months.

Teachercn.com Safety Information

Overview

Last Updated: 11/15/2024

Overall result - "teachercn.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: 01/16/2021

teachercn.com is safe.

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

Google Safe Search

Last Updated: 10/22/2016

teachercn.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

Malware not found at "teachercn.com".
"teachercn.com" is not a phishing page.
"teachercn.com" does not install unwanted software.
"teachercn.com" does not contain harmfull applications.
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: 02/23/2021

teachercn.com is safe.

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

Web of Trust

Last Updated: 01/10/2019

teachercn.com child safety isvery good.

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

SSL Information

SSL Checker Tool

WARNING!	Certificate download error. Previous scan results are shown below.
WARNING!	Teachercn.com is not secured by SSL certificate.

Teachercn.com Server Information

Server Location

Geolocation Tool

Not Found

ASN Information

ASN Lookup Tool

ASN ID: 137697
ASN Title: CHINATELECOM-JIANGSU-YANGZHOU-IDC CHINATELECOM JiangSu YangZhou IDC networkdescr: YangZhouJiangsu Province, P.R.China., CN

Last Update: 10/15/2020

ASN Whois

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

% Information related to 'AS137530 - AS138553'

as-block: AS137530 - AS138553
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: 2017-12-08T06:45:58Z
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 'AS137697'

% Abuse contact for 'AS137697' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS137697
as-name: CHINATELECOM-JiangSu-YangZhou-IDC
descr: CHINATELECOM JiangSu YangZhou IDC networkdescr: YangZhou , Jiangsu Province, P.R.China.
country: CN
import: from AS4134
action pref=100;
accept ANY
import: from AS4809
action pref=100;
accept ANY
import: from AS58566
action pref=100;
accept ANY
export: to AS4134
announce AS137697
export: to AS4809
announce AS137697
export: to AS58566
announce AS137697
remarks: Networks Of MAN, Chinatelecom AnHui Province, P.R.China.
admin-c: CH93-AP
tech-c: CH93-AP
notify: Zhengzm@gsta.com
mnt-by: APNIC-HM
mnt-lower: MAINT-CHINANET
mnt-irt: IRT-CHINANET-CN
last-modified: 2019-03-19T01:35:23Z
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: Chinanet Hostmaster
nic-hdl: CH93-AP
e-mail: anti-spam@ns.chinanet.cn.net
address: No.31 ,jingrong street,beijing
address: 100032
phone: +86-10-58501724
fax-no: +86-10-58501724
country: CN
mnt-by: MAINT-CHINANET
last-modified: 2014-02-27T03:37:38Z
source: APNIC

% This query was served by the APNIC Whois Service version 1.88.15-47 (WHOIS-US4)

Teachercn.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: TEACHERCN.COM
Registry Domain ID: 125841455_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.22.cn
Registrar URL: http://www.22.cn
Updated Date: 2024-07-10T03:00:23Z
Creation Date: 2004-07-28T01:17:03Z
Registry Expiry Date: 2025-07-28T01:17:03Z
Registrar: 22net, Inc.
Registrar IANA ID: 1555
Registrar Abuse Contact Email: abuse@22.cn
Registrar Abuse Contact Phone: +86.571.88276020
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: N158.NS.YUNJIASU.COM
Name Server: N915.NS.YUNJIASU.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-16T20:35:05Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Teachercn.com HTML Validation

HTML Validation Tool

Errors

Malformed byte sequence: “d6”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “f8”.

Malformed byte sequence: “bb”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “bd”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “a7”.

Malformed byte sequence: “d7”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “bf”.

Malformed byte sequence: “ef”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “db”.

Malformed byte sequence: “ce”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “b0”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “d4”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “fe”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “d8”.

Malformed byte sequence: “e4”.

Quirky doctype. Expected “<!DOCTYPE html>”.

Internal encoding declaration “gb2312” disagrees with the actual encoding of the document (“utf-8”).

Bad value “text/html; charset=gb2312” for attribute “content” on element “meta”: “gb2312” is not a preferred encoding name. The preferred label for this encoding is “gbk”.

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

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

The “width” 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.

Attribute “background” not allowed on element “td” at this point.

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

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

Malformed byte sequence: “c7”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “da”.

Malformed byte sequence: “c8”.

Malformed byte sequence: “d5”.

Malformed byte sequence: “cb”.

Malformed byte sequence: “e5”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “ea”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “ba”.

Malformed byte sequence: “df”.

Malformed byte sequence: “c9”.

Malformed byte sequence: “e8”.

Malformed byte sequence: “be”.

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

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

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

Malformed byte sequence: “b7”.

Malformed byte sequence: “b1”.

Malformed byte sequence: “f3”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “b3”.

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

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.

Malformed byte sequence: “ed”.

Malformed byte sequence: “e2”, “b6”.

Malformed byte sequence: “e8”, “bc”.

Malformed byte sequence: “bc”.

Malformed byte sequence: “d1”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “af”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “d2”.

Malformed byte sequence: “f4”.

Malformed byte sequence: “f5”.

Stray end tag “a”.

Attribute “border” not allowed on element “iframe” at this point.

Attribute “vspace” not allowed on element “iframe” at this point.

Attribute “hspace” not allowed on element “iframe” at this point.

Attribute “framespacing” not allowed on element “iframe” at this point.

The “marginwidth” attribute on the “iframe” element is obsolete. Use CSS instead.

The “marginheight” attribute on the “iframe” element is obsolete. Use CSS instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.

Malformed byte sequence: “e7”.

Malformed byte sequence: “a4”.

Malformed byte sequence: “ec”, “b5”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “ec”, “bd”.

Malformed byte sequence: “f2”, “b4”.

Malformed byte sequence: “fb”.

Malformed byte sequence: “dc”.

Malformed byte sequence: “ee”, “b3”.

Malformed byte sequence: “b6”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “dd”.

Malformed byte sequence: “a6”.

Malformed byte sequence: “a8”.

Malformed byte sequence: “ae”.

Malformed byte sequence: “fc”.

Malformed byte sequence: “f1”, “b5”.

Malformed byte sequence: “f3”, “bd”.

Malformed byte sequence: “ed”, “bb”.

Malformed byte sequence: “e0”.

Malformed byte sequence: “f2”.

Malformed byte sequence: “aa”.

Malformed byte sequence: “a9”.

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

Malformed byte sequence: “ea”, “bb”.

Malformed byte sequence: “f1”, “b2”, “b9”.

Malformed byte sequence: “d9”.

Malformed byte sequence: “e1”, “b6”.

Malformed byte sequence: “e1”.

Malformed byte sequence: “f6”.

Malformed byte sequence: “e9”.

Malformed byte sequence: “a3”.

Malformed byte sequence: “f0”.

Malformed byte sequence: “e0”, “b8”.

Malformed byte sequence: “a2”.

Malformed byte sequence: “eb”, “bf”.

Malformed byte sequence: “e6”.

Warnings

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

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

NON-DOCUMENT-ERROR

Too many messages.

Teachercn.com Desktop Insights

Desktop Page Insights Tool

Last tested: 10/11/2016

Desktop

Desktop Speed

79%

Leverage browser caching

Enable compression

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

Minify HTML

Optimize images

Minify CSS

Desktop Resource Breakdown

Total Resources	49
Number of Hosts	14
Static Resources	30
JavaScript Resources	12
CSS Resources	1

Teachercn.com Mobile Insights

Mobile Page Insights Tool

Last tested: 10/11/2016

Mobile

Mobile Usability

58%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Mobile Speed

62%

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

Leverage browser caching

Prioritize visible content

Enable compression

Minify HTML

Minify CSS

Mobile Resource Breakdown

Total Resources	52
Number of Hosts	12
Static Resources	33
JavaScript Resources	12
CSS Resources	1

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Teachercn.com ?薪掏

Quick Summary

Teachercn.com General Information

Teachercn.com Alexa Rank History

Teachercn.com Safety Information

Teachercn.com Server Information

Teachercn.com Domain Name Information

Teachercn.com HTML Validation

Teachercn.com Desktop Insights

Teachercn.com Mobile Insights

Teachercn.com Nearest Competitors

Teachercn.com Typos