21hifi.com ▷ 21hifi.com网站

Quick Summary

Online Status

Online

Server IP address resolved: Yes
Http response code: 200
Response time: 0.60 sec.
Last Checked: 11/14/2024

21hifi.com traffic volume is 5,965 unique daily visitors and their 22,071 pageviews. The web value rate of 21hifi.com is 384,301 USD. Each visitor makes around 3.96 page views on average.

By Alexa's traffic estimates 21hifi.com placed at 2,976 position over the world, while the largest amount of its visitors comes from China, where it takes 3,684 place.

21hifi.com registered under .COM top-level domain. Check other websites in .COM zone.

The last verification results, performed on (November 14, 2024) 21hifi.com show that 21hifi.com has an invalid SSL certificate. Click “Refresh” button for SSL Information at the Safety Information section.

In accordance with Google Safe Browsing and Symantec 21hifi.com is pretty a safe domain.

Relying Google MobileFriendly test 21hifi.com is not well optimized for mobiles and tablets. Designing your sites to be mobile friendly ensures that all of your web pages perform well on all devices.

21hifi.com General Information

Global Rank

32,314

Average Load Time

1.51sec

Links In Count

115

Website Value

$359,160

Audience Geography. Where are 21hifi.com visitors located?

Country	Visitors
China CN	99.3%
Other	0.7%

Country	Pageviews
China CN	99.2%
Other	0.9%

Country	Rank
China CN	3684

Where do visitors go on 21hifi.com?

Subdomain	Pageviews
21hifi.com	99.96%
other	0.04%

Subdomain	Pageviews per User
21hifi.com	3.8

Subdomain	Reach
21hifi.com	99.85%

How popular is 21hifi.com?

Period	Global Rank	Global Rank Delta
past 3 months	32314	-23041
past month	32302	-1660
past week	32595	-16233
yesterday	26951	-3380

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	30951	-22711	22	90%	3.7	7%
30	30171	-1856	23	7%	3.8	1%
7	29121	-14373	24	60%	4.1	0.7%
1	19472	-7688	39	40%	6	40%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	35199	-24369	22	77%
30	35518	-1724	22	6%
7	36677	-18367	21	60%
1	33564	-1392	20	3%

21hifi.com Safety Information

Overview

Last Updated: 11/14/2024

Unknown status.

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: 03/21/2024

21hifi.com is safe.

Norton ConnectSafe evaluates 21hifi.com for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 11/14/2024

Unknown status.

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

21hifi.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: 02/22/2021

21hifi.com is safe.

McAfee assesses 21hifi.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 21hifi.com for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 11/14/2024

21hifi.com child safety is unknown.

The WOT calculates reputation of the 21hifi.com. This reputation system receives ratings from users and information from third-party sources, assesses the 21hifi.com for safety features and confirms, whether 21hifi.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

21hifi.com Server Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 134764
ASN Title: CT-FOSHAN-IDC CHINANET Guangdong province network, CN

Last Update: 07/18/2024

ASN Whois

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

% Information related to 'AS134557 - AS135580'

as-block: AS134557 - AS135580
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: 2014-09-03T01:31:50Z
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 'AS134764'

% Abuse contact for 'AS134764' is 'anti-spam@ns.chinanet.cn.net'

aut-num: AS134764
as-name: CT-FoShan-IDC
descr: CHINANET Guangdong province network
descr: Data Communication Division
descr: 510000
country: CN
remarks: CHINANET Guangdong province network
admin-c: CH93-AP
tech-c: CH93-AP
notify: zhengzm@gsta.com
mnt-by: MAINT-CHINANET
mnt-irt: IRT-CHINANET-CN
mnt-routes: MAINT-CHINANET
last-modified: 2016-07-27T04:06:30Z
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 1.88.15-46 (WHOIS-US4)

21hifi.com Domain Name Information

WHOIS

WHOIS Lookup Tool

Domain Whois

Domain Name: 21HIFI.COM
Registry Domain ID: 30113490_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.paycenter.com.cn
Registrar URL: http://www.xinnet.com
Updated Date: 2022-05-25T07:47:20Z
Creation Date: 2000-06-28T08:17:39Z
Registry Expiry Date: 2031-06-28T08:17:39Z
Registrar: Xin Net Technology Corporation
Registrar IANA ID: 120
Registrar Abuse Contact Email: supervision@xinnet.com
Registrar Abuse Contact Phone: +86.4008182233
Domain Status: clientDeleteProhibited https://icann.org/epp#clientDeleteProhibited
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS19.XINCACHE.COM
Name Server: NS20.XINCACHE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2024-09-13T06:31:18Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

21hifi.com HTML Validation

HTML Validation Tool

Errors

Malformed byte sequence: “d2”.

Malformed byte sequence: “f4”.

Malformed byte sequence: “cf”.

Malformed byte sequence: “ec”.

Malformed byte sequence: “cd”.

Malformed byte sequence: “f8”.

Start tag seen without seeing a doctype first. 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”.

Attribute “topmargin” not allowed on element “body” at this point.

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

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

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

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

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

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

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

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

Malformed byte sequence: “d7”.

Malformed byte sequence: “da”.

Malformed byte sequence: “a1”.

Malformed byte sequence: “b8”.

Malformed byte sequence: “c2”.

Malformed byte sequence: “f3”, “be”, “b0”.

Malformed byte sequence: “ca”.

Malformed byte sequence: “c0”.

Malformed byte sequence: “b0”.

Malformed byte sequence: “b9”.

Malformed byte sequence: “de”.

Malformed byte sequence: “c1”.

Malformed byte sequence: “bf”.

Malformed byte sequence: “cc”.

Malformed byte sequence: “e3”, “b8”.

Malformed byte sequence: “b6”.

Malformed byte sequence: “d3”.

Malformed byte sequence: “fd”.

Malformed byte sequence: “be”.

Malformed byte sequence: “ab”.

Malformed byte sequence: “b2”.

Malformed byte sequence: “cb”.

Malformed byte sequence: “b7”.

Malformed byte sequence: “a2”.

Malformed byte sequence: “c9”.

Malformed byte sequence: “d5”.

Malformed byte sequence: “d6”.

Malformed byte sequence: “d0”.

Malformed byte sequence: “bd”.

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

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

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

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

Malformed byte sequence: “ec”, “bf”.

Malformed byte sequence: “f6”.

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

Malformed byte sequence: “fe”.

Malformed byte sequence: “ba”.

Malformed byte sequence: “ae”.

Malformed byte sequence: “d8”.

Malformed byte sequence: “e4”.

Malformed byte sequence: “e2”.

Malformed byte sequence: “c5”.

Malformed byte sequence: “fa”.

Malformed byte sequence: “bb”.

Malformed byte sequence: “df”.

Malformed byte sequence: “bc”.

No space between attributes.

Attribute “2017” not allowed on element “a” at this point.

End tag “td” seen, but there were open elements.

Unclosed element “a”.

Malformed byte sequence: “f3”, “bc”, “b6”.

Malformed byte sequence: “e5”.

Malformed byte sequence: “f9”.

Malformed byte sequence: “b3”.

Malformed byte sequence: “ac”.

Malformed byte sequence: “c6”.

Malformed byte sequence: “d4”.

Malformed byte sequence: “aa”.

Malformed byte sequence: “b5”.

Malformed byte sequence: “d1”.

Malformed byte sequence: “ef”.

Malformed byte sequence: “f7”.

Malformed byte sequence: “b4”.

Malformed byte sequence: “ec”, “b3”.

Malformed byte sequence: “c7”.

Malformed byte sequence: “ed”.

Malformed byte sequence: “c4”.

Malformed byte sequence: “db”.

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

Malformed byte sequence: “dc”.

Malformed byte sequence: “ea”, “bc”.

Malformed byte sequence: “ee”.

Malformed byte sequence: “e6”.

Stray end tag “a”.

Malformed byte sequence: “c3”.

Malformed byte sequence: “a6”.

Malformed byte sequence: “eb”.

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

End tag “a” violates nesting rules.

Cannot recover after last error. Any further errors will be ignored.

Warnings

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

Attribute “2017” is not serializable as XML 1.0.

21hifi.com Desktop Insights

Last tested: 10/09/2018

Desktop

Desktop Speed

71%

Leverage browser caching

Optimize images

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

Minify HTML

Desktop Resource Breakdown

Total Resources	62
Number of Hosts	2
Static Resources	59
CSS Resources	1

21hifi.com Mobile Insights

Last tested: 10/09/2018

Mobile

Mobile Usability

59%

Use legible font sizes

Size tap targets appropriately

Configure the viewport

Size content to viewport

Mobile Speed

64%

Leverage browser caching

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

Optimize images

Reduce server response time

Minify HTML

Mobile Resource Breakdown

Total Resources	60
Number of Hosts	2
Static Resources	57
CSS Resources	1

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21hifi.com 21hifi.com网站

Quick Summary

21hifi.com General Information

21hifi.com Safety Information

21hifi.com Server Information

21hifi.com Domain Name Information

21hifi.com HTML Validation

21hifi.com Desktop Insights

21hifi.com Mobile Insights

21hifi.com Nearest Competitors

21hifi.com Typos