21spv.com 阳光工匠光伏网_主流光伏行业媒体商务平台

阳光工匠光伏网，是主流光伏行业媒体商务平台，为用户提供光伏资讯、光伏培训、光伏产品供求、服务供求、项目供求、诚信认证服务、光伏行情、光伏周刊。

21spv.com Quick Summary

Status

Offline

Server IP address resolved: No

Http response code: None

Last Checked: 05/21/2024

21spv.com traffic estimate is about 19 unique visitors and 76 pageviews per day. The approximated value of 21spv.com is 0 USD. Every unique visitor makes about 4 pageviews on average.

Alexa Traffic Rank estimates that 21spv.com is ranked number 15,674 in the world.

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

During the last check (May 21, 2024) 21spv.com has an invalid SSL certificate. please click the “Refresh” button for SSL Information at the Safety Information section.

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

Relying on Google Mobile-Friendly test 21spv.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, also website page loading time may be improved.

21spv.com General Information

21spv.com Audience Geography

Where are website visitors coming from?

Visitors
Pageviews
Ranks

Country	Visitors

21spv.com Traffic Distribution

Where do visitors go on 21spv.com?

Subdomain Traffic
Views per User
Subdomain Reach

Subdomain	Pageviews

21spv.com Popularity

How popular is 21spv.com?

Global Rank
Pageviews
Reach

Period	Global Rank	Global Rank Delta
past 3 months	8485091	0
past month	4342660	0
past week	1744712	0

Days	Pageviews Rank	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	6214283	0	0%	4	0%
30	3166832	0	0%	4	0%
7	1266870	1	0%	4	0%

Days	Reach Rank	Reach per Million	Reach per Million Delta
90	9215650	1	0%
30	4810848	3	0%
7	1981705	1	0%

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21spv.com Safety Information

Rankchart Summary

Safe

Updated: 05/21/2024

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

Safe

Updated: 02/07/2024

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Norton ConnectSafe evaluates websites for any unsafe and inapropriate content. The results are important for families with young children.

Google Safe Search

Safe

Updated: 02/10/2017

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SafeSearch works as a parental control tool to filter out any content that might be inappropriate for your children.

Google Safe Browsing

Safe

Malware not found

Phishing not detected

Unwanted software not found

Harmfull applications not found

Updated: 01/09/2019

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Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee® WebAdvisor

Safe

Updated: 01/24/2021

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

Web of Trust

Not Checked

Updated: 05/21/2024

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

21spv.com SSL Information

Information about SSL/TLS certificates

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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

SSL Checker

21spv.com Server Information

21spv.com Server Location

Where website hosting server is located?

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21spv.com ASN Information

Information about IP address owner

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ASN ID: 37963

ASN Title: CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN

Updated: 02/29/2024

Raw ASN data:

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

% Information related to 'AS37888 - AS38911'

as-block: AS37888 - AS38911
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: 2009-09-29T06:04:16Z
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 'AS37936 - AS37970'

as-block: AS37936 - AS37970
descr: CNNIC ASN block
country: CN
remarks: These AS numbers are further assigned by CNNIC
remarks: to CNNIC members and end-users in China
admin-c: IPAS1-AP
tech-c: IPAS1-AP
mnt-by: APNIC-HM
mnt-lower: MAINT-CNNIC-AP
last-modified: 2008-09-04T06:40:26Z
source: APNIC

role: CNNIC IPAS CONFEDERATION
address: No.4, Zhongguancun No.4 South Street,
address: Haidian District, Beijing
country: CN
phone: +86-010-58813000
fax-no: +86-010-58813075
e-mail: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
nic-hdl: IPAS1-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-09-12T07:40:01Z
source: APNIC

% Information related to 'AS37963'

% Abuse contact for 'AS37963' is 'ipas@cnnic.cn'

aut-num: AS37963
as-name: CNNIC-ALIBABA-CN-NET-AP
descr: Hangzhou Alibaba Advertising Co.,Ltd.
descr: East Software Park, 99 Huaxing Rd.
descr: Hangzhou, China
country: CN
admin-c: ZM678-AP
tech-c: ZM877-AP
tech-c: ZM876-AP
tech-c: ZM875-AP
import: from AS4837
action pref=100;
accept ANY
import: from AS4134
action pref=100;
accept ANY
export: to AS4837
announce AS37963
export: to AS4134
announce AS37963
mnt-routes: MAINT-CNNIC-AP
mnt-by: MAINT-CNNIC-AP
mnt-irt: IRT-CNNIC-CN
last-modified: 2013-07-24T02:44:02Z
source: APNIC

irt: IRT-CNNIC-CN
address: Beijing, China
e-mail: ipas@cnnic.cn
abuse-mailbox: ipas@cnnic.cn
admin-c: IP50-AP
tech-c: IP50-AP
auth: # Filtered
remarks: Please note that CNNIC is not an ISP and is not
remarks: empowered to investigate complaints of network abuse.
remarks: Please contact the tech-c or admin-c of the network.
mnt-by: MAINT-CNNIC-AP
last-modified: 2017-11-01T08:57:39Z
source: APNIC

person: Shuo Yu
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: shuo.yus@alibaba-inc.com
e-mail: shuo.yus@aliyun-inc.com
nic-hdl: ZM678-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2011-11-02T03:36:02Z
source: APNIC

person: Guoxin Gao
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022600
fax-no: +86-0571-85022600
e-mail: anti-spam@list.alibaba-inc.com
nic-hdl: ZM875-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2014-07-30T01:56:01Z
source: APNIC

person: security trouble
e-mail: cloud-cc-sqcloud@list.alibaba-inc.com
address: 5th,floor,Building D,the West Lake International Plaza of S&T,391#Wen’er Road
address: Hangzhou, Zhejiang, China
phone: +86-0571-85022600
country: CN
mnt-by: MAINT-CNNIC-AP
nic-hdl: ZM876-AP
last-modified: 2013-07-08T02:56:02Z
source: APNIC

person: Guowei Pan
address: 5F, Builing D, the West Lake International Plaza of S&T
address: No.391 Wen'er Road, Hangzhou City
address: Zhejiang, China, 310099
country: CN
phone: +86-0571-85022088-30763
fax-no: +86-0571-85022600
e-mail: guowei.pangw@alibaba-inc.com
nic-hdl: ZM877-AP
mnt-by: MAINT-CNNIC-AP
last-modified: 2013-07-09T01:34:02Z
source: APNIC

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

Geolocation

ASN Lookup

21spv.com Domain Name Information

21spv.com DNS Information

Domain name service records

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A

Host	A Record	TTL

21spv.com Whois Information

Information about registered users or assignees of an Internet resource

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Raw WHOIS data:

Whois

DNS Lookup

21spv.com HTML Validation

21spv.com W3C HTML Markup Validation

HTML markup errors and warnings

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Errors:

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

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

Bad value “bookmark” for attribute “rel” on element “link”: The string “bookmark” is not a registered keyword.

Bad value “archives” for attribute “rel” on element “link”: The string “archives” is not a registered keyword.

Attribute “x-webkit-speech” not allowed on element “input” at this point.

Attribute “speech” not allowed on element “input” at this point.

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 “div”.

No space between attributes.

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

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

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

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

Element “script” must not have attribute “charset” unless attribute “src” is also specified.

Bad element name “wb:follow-button”: Code point “U+003A” is not allowed

End tag for “body” seen, but there were unclosed elements.

Unclosed element “div”.

Warnings:

The “type” attribute is unnecessary for JavaScript resources.

Attribute “"” is not serializable as XML 1.0.

The “charset” attribute on the “script” element is obsolete.

Element name “wb:follow-button” cannot be represented as XML 1.0.

Consider adding a “lang” attribute to the “html” start tag to declare the language of this document.

HTML Validator

21spv.com Desktop Performance

How Well 21spv.com Performs On Desktops?

Website desktop performance and usability tips

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Speed
Resource Breakdown

Speed

53%

Leverage browser caching

Optimize images

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

Enable compression

Minify JavaScript

Minify CSS

Minify HTML

Updated: 11/20/2015

21spv.com Mobile Performance

How Optimized Is 21spv.com for Mobile Devices?

Tips on speeding up mobile site performance

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Usability
Speed
Resource Breakdown

Usability

56%

Use legible font sizes

Size content to viewport

Size tap targets appropriately

Configure the viewport

Updated: 09/02/2019

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Estimated Nearest Competitors Of 21spv.com

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shouzuomagazine.com
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specialized-onlinestore.jp
bbzone.net

21spv.com URL Typos

Most common user URL mistypes for 21spv.com

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Total Resources	139
Number of Hosts	22
Static Resources	122
JavaScript Resources	44
CSS Resources	7

Text	690.0 Bytes
CSS	59.5 KBytes
Images	810.5 KBytes
HTML	68.2 KBytes
JavaScript	791.9 KBytes
Other	2.1 KBytes

Total Resources	91
Number of Hosts	16
Static Resources	82
JavaScript Resources	25
CSS Resources	2

CSS	7.3 KBytes
Images	2.0 MBytes
HTML	68.4 KBytes
JavaScript	542.0 KBytes
Other	1.9 KBytes