SiteChecker is a free SEO tool that provides recommendation for better search engine visibility.
Updated on May 18 2023 05:43 AM
Old data? UPDATE this report !
The score is 50/100
Website Title
上海雷卯电子-静电保护元件 TVS二极管_防雷防静电方案_电磁兼容EMC免费测试供应厂家
Length : 45
Good! Your title is perfect because it is between 10 and 70 characters long.
Website Description
上海雷卯电子科技有限公司，成立于2011年，品牌Leiditech，是国家商新技术企业。公司主要提供防静电TVS/ESD以及相关EMC元器件(放电管TSS/GDT，稳压管 ZENER，压敏申阳MOV， 整流二极管 RECTIFIER，自恢复保险丝PPTC，场效应管 MOSFET、电感)。
Length : 145
Awesome. Your meta description has a length of 70 to 160 characters.
Keywords
静电保护元件厂家, TVS二极管供应商,防雷防静电方案,电磁兼容 EMC免费测试
Nice one, we check that you are using meta keywords on your website.
Og Meta Properties
Og Properties aren't being used on this page. This tag helps social crawlers like facebook and twitter to structure your page more effectively.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 0 | 0 | 1 | 1 | 0 |
Images
We found 52 images on this web page.
Needs attention! Add alternative text to your images so that search engines can better grasp what they're about. There are 16 alt attributes that are either empty or missing.
Text/HTML Ratio
Ratio : 37%
Good ratio! The text to HTML code ratio for this page is between 25 and 70.
Flash
Good!, you are not using Flash content.
Iframe
Good!, This page does not contain any Iframes.
SEO URL Rewrite
Not Good. Your url have a query string and needs mod rewrite to be SEO friendly.
URL Underscores
Good! There are no underscores in your URLs.
In-page links
We found a total of 262 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| - | Internal | Passing Juice |
| English | Internal | noFollow |
| 日本語 | Internal | noFollow |
| Deutsch | Internal | noFollow |
| Français | Internal | noFollow |
| Español | Internal | noFollow |
| Русский | Internal | noFollow |
| Português | Internal | noFollow |
| 简体中文 | Internal | noFollow |
| USD | External | Passing Juice |
| 首页 | Internal | Passing Juice |
| 关于我们 | Internal | Passing Juice |
| 企业文化 | Internal | Passing Juice |
| 公司资质 | Internal | Passing Juice |
| 加入我们 | Internal | Passing Juice |
| 产品中心 | External | Passing Juice |
| ESD静电保护元件 | Internal | Passing Juice |
| 0201(DFN0603) | Internal | Passing Juice |
| 0402(DFN1006) | Internal | Passing Juice |
| DFN1006-3 | Internal | Passing Juice |
| DFN1210-6 | Internal | Passing Juice |
| DFN1510 | Internal | Passing Juice |
| DFN1610 | Internal | Passing Juice |
| DFN1610-2 | Internal | Passing Juice |
| DFN1616-6 | Internal | Passing Juice |
| DFN1714 | Internal | Passing Juice |
| DFN2010 | Internal | Passing Juice |
| DFN2020-3 | Internal | Passing Juice |
| DFN2020-6 | Internal | Passing Juice |
| DFN2510P10 | Internal | Passing Juice |
| DFN2510P8 | Internal | Passing Juice |
| DFN2514 | Internal | Passing Juice |
| DFN2626-10 | Internal | Passing Juice |
| DFN3014 | Internal | Passing Juice |
| DFN3020-10 | Internal | Passing Juice |
| DFN3313 | Internal | Passing Juice |
| DFN3314 | Internal | Passing Juice |
| DFN4120P10 | Internal | Passing Juice |
| MSOP-08 | Internal | Passing Juice |
| MSOP-10 | Internal | Passing Juice |
| SOP-14 | Internal | Passing Juice |
| SOD-323 | Internal | Passing Juice |
| SOD-523 | Internal | Passing Juice |
| SOD-923 | Internal | Passing Juice |
| SOP-16 | Internal | Passing Juice |
| SOP-8 | Internal | Passing Juice |
| SOT-143 | Internal | Passing Juice |
| SOT-23 | Internal | Passing Juice |
| SOT-25 | Internal | Passing Juice |
| SOT-26 | Internal | Passing Juice |
| SOT-323 | Internal | Passing Juice |
| SOT-353 | Internal | Passing Juice |
| SOT-363 | Internal | Passing Juice |
| SOT-523 | Internal | Passing Juice |
| SOT-553 | Internal | Passing Juice |
| SOT-563 | Internal | Passing Juice |
| SOT-723 | Internal | Passing Juice |
| PESD静电保护元件 | Internal | Passing Juice |
| 0201 | Internal | Passing Juice |
| 0402 | Internal | Passing Juice |
| 0603 (SOD-523) | Internal | Passing Juice |
| 2510 | Internal | Passing Juice |
| TVS瞬态电压抑制二极管 | Internal | Passing Juice |
| SMF Series(SOD-123FL) | Internal | Passing Juice |
| P4SMF Series(SOD-123FL) | Internal | Passing Juice |
| SMA Series(DO-214AC) | Internal | Passing Juice |
| SMB Series(DO-214AA) | Internal | Passing Juice |
| P6SMB Series(DO-214AA) | Internal | Passing Juice |
| 10BJ Series(DO-214AA) | Internal | Passing Juice |
| SMC Series(DO-214AB) | Internal | Passing Juice |
| SMD Series(DO-214AB) | Internal | Passing Juice |
| 5.0SMD Series(DO-214AB) | Internal | Passing Juice |
| 6.6SMD Series(DO-214AB) | Internal | Passing Juice |
| SM5S Series | Internal | Passing Juice |
| SM8S Series(6600W) | Internal | Passing Juice |
| 3KP Series(R6) | Internal | Passing Juice |
| 5KP Series(R6) | Internal | Passing Juice |
| 15KP Series(R6) | Internal | Passing Juice |
| 30KP Series(R6) | Internal | Passing Juice |
| P8S Series(R6) | Internal | Passing Juice |
| P12S Series(R6) | Internal | Passing Juice |
| P15S Series(R6) | Internal | Passing Juice |
| P4KE Series(DO-41) | Internal | Passing Juice |
| P6KE Series(DO-15) | Internal | Passing Juice |
| 1.5KE Series(DO-201) | Internal | Passing Juice |
| AK Series(AK) | Internal | Passing Juice |
| TSS半导体放电管 | Internal | Passing Juice |
| SMA Series(DO-214AC) | Internal | Passing Juice |
| SMB Series(DO-214AA) | Internal | Passing Juice |
| DO-15 Series | Internal | Passing Juice |
| TO-92 Series | Internal | Passing Juice |
| SOP-8 Series | Internal | Passing Juice |
| SIDAC | Internal | Passing Juice |
| GDT陶瓷气体放电管 | Internal | Passing Juice |
| SMD3216 Series | Internal | Passing Juice |
| SMD4532 Series | Internal | Passing Juice |
| SMD5050 Series | Internal | Passing Juice |
| 2R-5 Series | Internal | Passing Juice |
| 2R-6 Series | Internal | Passing Juice |
| 2R-8 Series | Internal | Passing Juice |
| 3R-5 Series | Internal | Passing Juice |
| 3R-6 Series | Internal | Passing Juice |
| 3R-8 Series | Internal | Passing Juice |
| MOV压敏电阻 | Internal | Passing Juice |
| 贴片0402系列 | Internal | Passing Juice |
| 贴片0603系列 | Internal | Passing Juice |
| 贴片0805系列 | Internal | Passing Juice |
| 贴片1206系列 | Internal | Passing Juice |
| 贴片1210系列 | Internal | Passing Juice |
| 贴片1812系列 | Internal | Passing Juice |
| 贴片2220系列 | Internal | Passing Juice |
| 贴片3220系列 | Internal | Passing Juice |
| 插件05D系列 | Internal | Passing Juice |
| 插件07D系列 | Internal | Passing Juice |
| 插件10D系列 | Internal | Passing Juice |
| 插件14D系列 | Internal | Passing Juice |
| 插件20D系列 | Internal | Passing Juice |
| 插件25D系列 | Internal | Passing Juice |
| 插件32D系列 | Internal | Passing Juice |
| 插件34D系列 | Internal | Passing Juice |
| 插件40D系列 | Internal | Passing Juice |
| 插件53D系列 | Internal | Passing Juice |
| PPTC自恢复保险丝 | Internal | Passing Juice |
| SMD0603系列 | Internal | Passing Juice |
| SMD0805系列 | Internal | Passing Juice |
| SMD1206系列 | Internal | Passing Juice |
| SMD1210系列 | Internal | Passing Juice |
| SMD1812系列 | Internal | Passing Juice |
| SMD2018系列 | Internal | Passing Juice |
| SMD2920系列 | Internal | Passing Juice |
| HL06系列 | Internal | Passing Juice |
| HL16系列 | Internal | Passing Juice |
| HL30系列 | Internal | Passing Juice |
| HL60系列 | Internal | Passing Juice |
| HL130系列 | Internal | Passing Juice |
| HL250系列 | Internal | Passing Juice |
| HL600系列 | Internal | Passing Juice |
| MOSFET场效应管 | Internal | Passing Juice |
| N沟道MOSFET | Internal | Passing Juice |
| P沟道MOSFET | Internal | Passing Juice |
| N+P道MOSFET | Internal | Passing Juice |
| Dual N道MOSFET | Internal | Passing Juice |
| Dual P道MOSFET | Internal | Passing Juice |
| RECTIFIER整流管 | Internal | Passing Juice |
| 0201(DFN0603) | Internal | Passing Juice |
| 0402（DFN1006） | Internal | Passing Juice |
| SOD-723 | Internal | Passing Juice |
| 0603(SOD-523) | Internal | Passing Juice |
| 0805(SOD-323) | Internal | Passing Juice |
| SOT-23 | Internal | Passing Juice |
| SOD-123FL | Internal | Passing Juice |
| SMA(SMAF) | Internal | Passing Juice |
| SMB(SMBF) | Internal | Passing Juice |
| SMC | Internal | Passing Juice |
| TO-277 | Internal | Passing Juice |
| TO-252 | Internal | Passing Juice |
| TO-220 | Internal | Passing Juice |
| 桥堆 | Internal | Passing Juice |
| TO-247 | Internal | Passing Juice |
| Zener 稳压管 | Internal | Passing Juice |
| SOD-882 | Internal | Passing Juice |
| 0603(SOD-523) | Internal | Passing Juice |
| SOD-323 | Internal | Passing Juice |
| SOD-123FL | Internal | Passing Juice |
| SMA | Internal | Passing Juice |
| SMB | Internal | Passing Juice |
| SOT-23 | Internal | Passing Juice |
| Inductor电感 | Internal | Passing Juice |
| Molding 一体成型 | Internal | Passing Juice |
| winding 绕线 | Internal | Passing Juice |
| Common 共模 | Internal | Passing Juice |
| Transceiver收发器 | Internal | Passing Juice |
| RS485 RS422通讯芯片 | Internal | Passing Juice |
| RS232通讯芯片 | Internal | Passing Juice |
| CAN通讯芯片 | Internal | Passing Juice |
| LDO 线性稳压器 | Internal | Passing Juice |
| 应用案例 | Internal | Passing Juice |
| 信号保护 | Internal | Passing Juice |
| 电源保护 | Internal | Passing Juice |
| 智慧汽车 | Internal | Passing Juice |
| 智能家居 | Internal | Passing Juice |
| 智慧工厂 | Internal | Passing Juice |
| 智慧城市 | Internal | Passing Juice |
| 新能源光伏风电 | Internal | Passing Juice |
| 服务支持 | Internal | Passing Juice |
| 免费实验室 | Internal | Passing Juice |
| 技术支持 | Internal | Passing Juice |
| 博客 | Internal | Passing Juice |
| 新闻 | Internal | Passing Juice |
| 公司新闻 | Internal | Passing Juice |
| 行业新闻 | Internal | Passing Juice |
| 联系我们 | Internal | Passing Juice |
| 询盘 | External | Passing Juice |
| 0201(DFN0603) | Internal | Passing Juice |
| 0402(DFN1006) | Internal | Passing Juice |
| DFN1006-3 | Internal | Passing Juice |
| DFN1210-6 | Internal | Passing Juice |
| DFN1510 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| 0603 (SOD-523) | Internal | Passing Juice |
| 2510 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| SMF Series(SOD-123FL) | Internal | Passing Juice |
| P4SMF Series(SOD-123FL) | Internal | Passing Juice |
| SMA Series(DO-214AC) | Internal | Passing Juice |
| SMB Series(DO-214AA) | Internal | Passing Juice |
| P6SMB Series(DO-214AA) | Internal | Passing Juice |
| - | Internal | Passing Juice |
| DO-15 Series | Internal | Passing Juice |
| TO-92 Series | Internal | Passing Juice |
| SOP-8 Series | Internal | Passing Juice |
| - | Internal | Passing Juice |
| SMD3216 Series | Internal | Passing Juice |
| SMD4532 Series | Internal | Passing Juice |
| SMD5050 Series | Internal | Passing Juice |
| 2R-5 Series | Internal | Passing Juice |
| 2R-6 Series | Internal | Passing Juice |
| - | Internal | Passing Juice |
| SMD0603系列 | Internal | Passing Juice |
| SMD0805系列 | Internal | Passing Juice |
| SMD1206系列 | Internal | Passing Juice |
| SMD1210系列 | Internal | Passing Juice |
| SMD1812系列 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| 0201(DFN0603) | Internal | Passing Juice |
| 0402（DFN1006） | Internal | Passing Juice |
| SOD-723 | Internal | Passing Juice |
| 0603(SOD-523) | Internal | Passing Juice |
| 0805(SOD-323) | Internal | Passing Juice |
| - | Internal | Passing Juice |
| N沟道MOSFET | Internal | Passing Juice |
| P沟道MOSFET | Internal | Passing Juice |
| N+P道MOSFET | Internal | Passing Juice |
| Dual N道MOSFET | Internal | Passing Juice |
| Dual P道MOSFET | Internal | Passing Juice |
| - | Internal | Passing Juice |
| Molding 一体成型 | Internal | Passing Juice |
| winding 绕线 | Internal | Passing Juice |
| Common 共模 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| SOD-882 | Internal | Passing Juice |
| SOD-323 | Internal | Passing Juice |
| SMA | Internal | Passing Juice |
| - | Internal | Passing Juice |
| 贴片0402系列 | Internal | Passing Juice |
| 贴片0603系列 | Internal | Passing Juice |
| 贴片0805系列 | Internal | Passing Juice |
| 贴片1206系列 | Internal | Passing Juice |
| 贴片1210系列 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| RS485 RS422通讯芯片 | Internal | Passing Juice |
| RS232通讯芯片 | Internal | Passing Juice |
| CAN通讯芯片 | Internal | Passing Juice |
| - | Internal | Passing Juice |
| - | Internal | Passing Juice |
| 2022年11月4日~6日上海雷卯骨干员工参加涵德-规画之旅 | Internal | Passing Juice |
| 2022年11月2日~3日上海雷卯廖总参加专精特新小巨人企业培训 | Internal | Passing Juice |
| - | External | Passing Juice |
| - | External | Passing Juice |
| 业务经理QQ | Internal | noFollow |
| 技术总监QQ | Internal | noFollow |
| - | External | Passing Juice |
Keywords Cloud
sma 0402dfn1006 series smb seriesdo-214ac seriessod-123fl 0201dfn0603 seriesr6 seriesdo-214ab seriesdo-214aa
Keywords Consistency
| Keyword | Content | Website Title | Keywords | Website Description | Headings |
|---|---|---|---|---|---|
| series | 34 |  |
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| seriesr6 | 14 | |
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| seriesdo-214aa | 11 | |
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| sma | 8 | |
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| seriesdo-214ab | 8 | |
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Url
Domain : leiditech.com
Length : 13
Favicon
Nice, you are using Favicon for your website.
Printability
Ooops. Print-Friendly CSS recommended to your website.
Language
Good. For declaring cn as your website's language.
Dublin Core
Oops. Dublin Core isn't being used on this page.
Doctype
HTML 5
Encoding
Good!. For specifying UTF-8 as your page charset.
W3C Validity
Errors : 0
Warnings : 0
Email Privacy
Awesome!, For converting your email address into image. Plain text tends email harvesting softwares to get your email address and will get receive spam mails later on.
Deprecated HTML
| Deprecated tags | Occurrences |
|---|---|
| <font> | 4 |
Needs some fix! HTML tags that have been deprecated are those that are obsolete and no longer in use. These HTML tags should be removed or replaced since they are no longer in use and not recommended by today's browsers. This may affect user experience if not removed.
Speed Tips
 |
Good, Your page are not using nested tables. |
|
Not Good., We found inline styles in your website. Try to avoid this as much as possible. |
|
Too bad, There are too many CSS files on your page. (more than 4). |
|
Needs attention!, We detected too much JS files on your page. (more than 6). Our Advice: try to minify or consolidate these JS files instead. This affects the speed of your page. |
|
Perfect, Your website makes use of Gzip compression. |
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
|
Flash content |
XML Sitemap
Perfectly Awesome!, We found XML Sitemap on your website. This helps search engine to index most if not all of your pages.
| https://leiditech.cn/leiditech-cn-sitemap.xml |
| https://leiditech.com/leiditech-com-sitemap.xml |
Robots.txt
http://leiditech.com/robots.txt
Awesome, A robots.txt file exists on your website.
Analytics
Missing
Ooops. This website does not appear to have an analytics tool loaded. Web analytics allows you to track the behavior of your website's visitors. You should install at least one analytics program.