| Desktop | 0/100 | ✘ |
| Mobile | 0/100 | ✘ |
| Field | Data | Result |
|---|---|---|
| Page Size | 379 KB | ✘ |
| Compression | 72 KB (-81%) | ✔ |
| Text/Html Ratio | 55594 / 387741 (bytes) = 14.34% | ✔ |
| Load Time | 4.45 second | ✘ |
| Mobile Ready | 0/100 | ✘ |
| In-Page Links | 746 | ❗ |
| Doc Type | HTML 5 | ✔ |
| Encoding | UTF-8 | ✔ |
| Declared Language | English | ✔ |
| Preferred Domain | Yes | ✔ |
| Robots.txt | Yes | ✔ |
| Url Rewrite | Yes | ✘ |
| Underscores in url | No | ✔ | Images Without ALT | 46 / 214 | ✘ |
| Embedded Objects (Desktop) | No | ✔ |
| Embedded Objects (Mobile) | Yes | ✘ |
| Iframe | Yes | ✘ |
| Custom 404 page | Yes | ✔ |
| Email Privacy | Yes | ✔ |
| Gsafe browsing | Yes | ✔ |
| Analytics | Yes | ✔ |
| W3C Validity | No | ✘ |
| Keywords | Freq | Title | Desc | <H> |
|---|---|---|---|---|
| 电池 | 7 | ✘ | ✘ | ✘ |
| 深圳站 | 5 | ✘ | ✘ | ✘ |
| 第五届电源 | 5 | ✘ | ✘ | ✘ |
| 更多 | 5 | ✘ | ✘ | ✘ |
| xilinx | 3 | ✘ | ✘ | ✘ |
| 绘制开关元件波形 | 3 | ✘ | ✘ | ✘ |
| 去除 | 3 | ✘ | ✘ | ✘ |
| 东莞 | 2 | ✘ | ✘ | ✘ |
| 上海 | 2 | ✘ | ✘ | ✘ |
| 广州 | 2 | ✘ | ✘ | ✘ |
| 大家看看这个llc | 2 | ✘ | ✘ | ✘ |
| 顺德 | 2 | ✘ | ✘ | ✘ |
| vitis | 2 | ✘ | ✘ | ✘ |
| mosfet | 2 | ✘ | ✘ | ✘ |
| 和littelfuse | 2 | ✘ | ✘ | ✘ |
|
With 4.45 seconds in page load, 379 KB of page size and all other reports below, the 21dianyuan.com has a SEO score of 51 out of 100 |
| Title | 世纪电源网-电子电源行业综合服务商 |
| Description | 权威的电源行业门户网站,整合行业资源,人气旺的电源社区,电源论坛,在线研讨会,电源专家互动,电源培训,电源网上信息发布,采 购信息,产品供应,企业招聘,工程师求职,电源软件,电源设计技术文章等 |
| Keyword | 世纪电源网,电源,DC,AC,直流,交流,电路仿真,变压器设计,电磁兼容,EMI/EMC测试,PFC,正激,反激,LLC,LED驱动,DSP,光伏,Layout,损耗计算,谐振电感 |
| Age | 14 Years, 224 Days |
| Created | 22nd-Jan-2008 |
| Updated | 11th-Dec-2019 |
| Expiry | 22nd-Jan-2025 |
| Host | Type | Ttl | Other |
|---|---|---|---|
| 21dianyuan.com | A | 89 | ip:114.55.100.72 |
| 21dianyuan.com | NS | 86400 | target:f1g1ns1.dnspod.net |
| 21dianyuan.com | NS | 86400 | target:f1g1ns2.dnspod.net |
| 21dianyuan.com | SOA | 180 | mname:f1g1ns1.dnspod.netrname:freednsadmin.dnspod.comserial:1652842177refresh:3600retry:180expire:1209600minimum-ttl:180 |
| 21dianyuan.com | MX | 600 | pri:10target:hzmx02.mxmail.netease.com |
| 21dianyuan.com | MX | 600 | pri:5target:hzmx01.mxmail.netease.com |
| 21dianyuan.com | TXT | 600 | txt:v=spf1 include:spf.163.com -all |
| 21dianyuan.com | TXT | 600 | txt:773222772-16352680 |
|
Domain Name: 21DIANYUAN.COM Registry Domain ID: 1385028903_DOMAIN_COM-VRSN Registrar WHOIS Server: whois.webnic.cc Registrar URL: http://www.webnic.cc Updated Date: 2008-10-22T07:22:18Z Creation Date: 2008-01-22T08:44:33Z Expiration Date: 2025-01-22T08:44:33Z Registrar: WEBCC Registrar IANA ID: 460 Registrar Abuse Contact Email: compliance_abuse@webnic.cc Registrar Abuse Contact Phone: +60.389966799 Domain Status: ok https://icann.org/epp#ok Registry Registrant ID: Not Available From Registry Registrant Name: hua jie Registrant Organization: Tianjin Zhongyuanxi Technology Co.,Ltd. Registrant Street: No.60,Xianyang Road,Tianjin Registrant City: tianjin Registrant State/Province: Tianjin Registrant Postal Code: 300192 Registrant Country: cn Registrant Phone: +86.2227686177 Registrant Phone Ext: Registrant Fax: +86.2227690960 Registrant Fax Ext: Registrant Email: hj@21dianyuan.com Registry Admin ID: Not Available From Registry Admin Name: Daniel Wu Admin Organization: Nihao.Net Ltd Admin Street: Room 406, Zhaojunmiao 14 Xueyuan Nan Lu Haidian District Admin City: Beijing Admin State/Province: Beijing Admin Postal Code: 100081 Admin Country: CN Admin Phone: +86.1062118984 Admin Phone Ext: Admin Fax: +86.1062118241 Admin Fax Ext: Admin Email: domain@nihao.net Registry Tech ID: Not Available From Registry Tech Name: Daniel Wu Tech Organization: Nihao.Net Ltd Tech Street: Room 406, Zhaojunmiao 14 Xueyuan Nan Lu Haidian District Tech City: Beijing Tech State/Province: Beijing Tech Postal Code: 100081 Tech Country: CN Tech Phone: +86.1062118984 Tech Phone Ext: Tech Fax: +86.1062118241 Tech Fax Ext: Tech Email: domain@nihao.net Name Server: F1G1NS1.DNSPOD.NET Name Server: F1G1NS2.DNSPOD.NET DNSSEC: unsigned URL of the ICANN WHOIS Data Problem Reporting System: https://www.icann.org/wicf >>> Last update of WHOIS database: 2022-09-02T16:36:56Z |
| Server IP | 114.55.100.72 |
| Server Location | China |
| Service Provider | Hangzhou Alibaba Advertising Co.,Ltd. |
| Domains (TLD) | Status |
|---|---|
| 21dianyuan.net | Already Registered |
| 21dianyuan.org | Already Registered |
| 21dianyuan.biz | Already Registered |
| 21dianyuan.io | Already Registered |
| 21dianyuan.info | Already Registered |
| Domains (TLD) | Status |
|---|---|
| q1dianyuan.com | Available |
| w1dianyuan.com | Available |
| e1dianyuan.com | Available |
| 2qdianyuan.com | Available |
| 2wdianyuan.com | Available |
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