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 Overview

21spv.com ranking shows that the page is at position 8,485,091 over the world.

In terms of rank-to-traffic ratio, 21spv.com has 20 unique users per day, viewing 81 pages. The rank based value of 21spv.com is 0 USD. Every user makes 4.32 pageviews on average.

21spv.com boasts a link base consisting of 213 referring domains and 245 external backlinks, as revealed by the data obtained from web network scanning.

21spv.com top-level domain belongs to .COM domain zone. Check other webpages in .COM zone.

According the last verification test in November 05, 2024, 21spv.com has an invalid SSL certificate. Click button “Update” SSL Information at the Safety Information section.

Based on data from Google Safe Browsing, Google Safe Search and Symantec 21spv.com is a fairly safe domain.

Based on Mobile-Friendly test by Google 21spv.com is poorly optimized for mobile phones and tablets. Remember that optimizing your website design for mobile devices ensures that all of your web pages perform well on all devices, page loading speed can also be accelerated.

21spv.com Rank Summary

Global Rank

8,485,091

Average Load Time

0.00sec

Links In Count

Website Value

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

Country	Visitors

Country	Pageviews

Country	Rank

Where do visitors go on 21spv.com?

Subdomain	Pageviews

Subdomain	Pageviews per User

Subdomain	Reach

How popular is 21spv.com?

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%

21spv.com Website Safety

Overview

Last Updated: 11/05/2024

Overall result - 21spv.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: 02/07/2024

21spv.com is safe.

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

Google Safe Search

Last Updated: 02/10/2017

21spv.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

21spv.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: 01/24/2021

21spv.com is safe.

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

Last Updated: 11/05/2024

21spv.com child safety is unknown.

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.

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

21spv.com Rank History

Alexa Rank shows how popular 21spv.com is in comparison with other sites. The most popular site has Alexa Rank equals 1. If 21spv.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 21spv.com and pageviews on 21spv.com over the past 3 months.

21spv.com Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 37963

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

Last Update: 02/29/2024

% [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)

21spv.com Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

Domain Name: 21SPV.COM
Registry Domain ID: 1221580226_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.dns.com.cn
Registrar URL: http://www.dns.com.cn
Updated Date: 2021-04-15T03:47:03Z
Creation Date: 2007-09-17T06:45:22Z
Registry Expiry Date: 2029-09-17T06:45:22Z
Registrar: Beijing Innovative Linkage Software Service Co. Ltd
Registrar IANA ID: 633
Registrar Abuse Contact Email:
Registrar Abuse Contact Phone:
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: NS13.DNS.COM.CN
Name Server: NS14.DNS.COM.CN
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-02-18T07:33:10Z

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

21spv.com HTML Check

HTML Validation Tool

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.

21spv.com Desktop Performance

Last tested: 11/20/2015

Desktop 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

Desktop Resource Breakdown

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

21spv.com Mobile Insights

Last tested: 09/02/2019

Mobile Usability

56%

Use legible font sizes

Size content to viewport

Size tap targets appropriately

Configure the viewport

Mobile Speed

32%

Optimize images

Leverage browser caching

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

Enable compression

Reduce server response time

Minify JavaScript

Minify HTML

Minify CSS

Mobile Resource Breakdown

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

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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 Overview

21spv.com Rank Summary

21spv.com Website Safety

21spv.com Rank History

21spv.com Hosting Information

21spv.com Domain Registration and Settings

21spv.com HTML Check

21spv.com Desktop Performance

21spv.com Mobile Insights

21spv.com Similar Audits

21spv.com Common Typos