搜索引擎优化（SEO)
标题（Title）
无标题（Title）
长度: 0 字符
长度: 0 字符
Ideally, your title tag should contain between 10 and 70 characters (spaces included).
Make sure your title is explicit and contains your most important keywords.
Be sure that each page has a unique title.
Make sure your title is explicit and contains your most important keywords.
Be sure that each page has a unique title.
描述（Description）
无描述（Description）
长度: 0 字符
长度: 0 字符
Meta descriptions contains between 100 and 300 characters (spaces included).
It allow you to influence how your web pages are described and displayed in search results.
Ensure that all of your web pages have a unique meta description that is explicit and contains your most important keywords (these appear in bold when they match part or all of the user's search query).
A good meta description acts as an organic advertisement, so use enticing messaging with a clear call to action to maximize click-through rate.
It allow you to influence how your web pages are described and displayed in search results.
Ensure that all of your web pages have a unique meta description that is explicit and contains your most important keywords (these appear in bold when they match part or all of the user's search query).
A good meta description acts as an organic advertisement, so use enticing messaging with a clear call to action to maximize click-through rate.
关键词（KeyWords）
无关键词（KeyWords）
Meta Keywords are a specific type of meta tag that appear in the HTML code of a Web page and help tell search engines what the topic of the page is.
However, google can't use meta keywords.
However, google can't use meta keywords.
Headings
| <H1> | <H2> | <H3> | <H4> | <H5> | <H6> |
|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 |
Use your keywords in the headings and make sure the first level (H1) includes your most important keywords. Never duplicate your title tag content in your header tag.
While it is important to ensure every page has an H1 tag, never include more than one per page. Instead, use multiple H2 - H6 tags.
While it is important to ensure every page has an H1 tag, never include more than one per page. Instead, use multiple H2 - H6 tags.
Google预览
无标题（Title）
pm-js.com/
无描述（Description）
This is an example of what your Title Tag and Meta Description will look like in Google search results.
While Title Tags & Meta Descriptions are used to build the search result listings, the search engines may create their own if they are missing, not well written, or not relevant to the content on the page.
Title Tags and Meta Descriptions are cut short if they are too long, so it's important to stay within the suggested character limits.
While Title Tags & Meta Descriptions are used to build the search result listings, the search engines may create their own if they are missing, not well written, or not relevant to the content on the page.
Title Tags and Meta Descriptions are cut short if they are too long, so it's important to stay within the suggested character limits.
图片Alt属性
在此网站发现 张图片
无ALT attributes缺失或为空.
无ALT attributes缺失或为空.
Alternative text is used to describe images to give the search engine crawlers (and the visually impaired).
Also, more information to help them understand images, which can help them to appear in Google Images search results.
Also, more information to help them understand images, which can help them to appear in Google Images search results.
关键词
没有发现关键词（KeyWords）
This Keyword Cloud provides an insight into the frequency of keyword usage within the page.
It's important to carry out keyword research to get an understanding of the keywords that your audience is using. There are a number of keyword research tools available online to help you choose which keywords to target.
It's important to carry out keyword research to get an understanding of the keywords that your audience is using. There are a number of keyword research tools available online to help you choose which keywords to target.
关键词（KeyWords）密度
| 关键词（KeyWords） | 出现频率 | 标题（Title） | 描述（Description） | <H> |
|---|
This table highlights the importance of being consistent with your use of keywords.
To improve the chance of ranking well in search results for a specific keyword, make sure you include it in some or all of the following: page URL, page content, title tag, meta description, header tags, image alt attributes, internal link anchor text and backlink anchor text.
To improve the chance of ranking well in search results for a specific keyword, make sure you include it in some or all of the following: page URL, page content, title tag, meta description, header tags, image alt attributes, internal link anchor text and backlink anchor text.
Text/HTML比例
HTML to Text比例值为: 0%
| 文本内容字符 | bytes |
| HTML总字符 | bytes |
Code to text ratio represents the percentage of actual text on a web page compared to the percentage of HTML code, and it is used by search engines to calculate the relevancy of a web page.
A higher code to text ratio will increase your chances of getting a better rank in search engine results.
A higher code to text ratio will increase your chances of getting a better rank in search engine results.
GZIP压缩
运行错误
Gzip is a method of compressing files (making them smaller) for faster network transfers.
It allows to reduce the size of web pages and any other typical web files to about 30% or less of its original size before it transfer.
It allows to reduce the size of web pages and any other typical web files to about 30% or less of its original size before it transfer.
WWW Resolve
Great, a redirect is in place to redirect traffic from your non-preferred domain.
Redirecting requests from a non-preferred domain is important because search engines consider URLs with and without "www" as two different websites.
IP标准化
您的IP 没有跳转到 pm-js.com
To check this for your website, enter your IP address in the browser and see if your site loads with the IP address.
Ideally, the IP should redirect to your website's URL or to a page from your website hosting provider.
If it does not redirect, you should do an htaccess 301 redirect to make sure the IP does not get indexed.
Ideally, the IP should redirect to your website's URL or to a page from your website hosting provider.
If it does not redirect, you should do an htaccess 301 redirect to make sure the IP does not get indexed.
XML Sitemap
A sitemap lists URLs that are available for crawling and can include additional information like your site's latest updates, frequency of changes and importance of the URLs. This allows search engines to crawl the site more intelligently.
We recommend that you generate an XML sitemap for your website and submit it to both Google Search Console and Bing Webmaster Tools. It is also good practice to specify your sitemap's location in your robots.txt file.
We recommend that you generate an XML sitemap for your website and submit it to both Google Search Console and Bing Webmaster Tools. It is also good practice to specify your sitemap's location in your robots.txt file.
Robots.txt
A robots.txt file allows you to restrict the access of search engine robots that crawl the web and it can prevent these robots from accessing specific directories and pages. It also specifies where the XML sitemap file is located.
You can check for errors in your robots.txt file using Google Search Console (formerly Webmaster Tools) by selecting 'Robots.txt Tester' under 'Crawl'. This also allows you to test individual pages to make sure that Googlebot has the appropriate access.
You can check for errors in your robots.txt file using Google Search Console (formerly Webmaster Tools) by selecting 'Robots.txt Tester' under 'Crawl'. This also allows you to test individual pages to make sure that Googlebot has the appropriate access.
URL Rewrite
Warning! We have detected parameters in a massive number of URLs
Your site's URLs contain unnecessary elements that make them look complicated.
A URL must be easy to read and remember for users. Search engines need URLs to be clean and include your page's most important keywords.
Clean URLs are also useful when shared on social media as they explain the page's content.
A URL must be easy to read and remember for users. Search engines need URLs to be clean and include your page's most important keywords.
Clean URLs are also useful when shared on social media as they explain the page's content.
Underscores in the URLs
Oh no, 您的URLs链接中使用了下划线(类似这种_字符)
Great, you are not using ?underscores (these_are_underscores) in your URLs.
While Google treats hyphens as word separators, it does not for underscores.
While Google treats hyphens as word separators, it does not for underscores.
Embedded Objects
Perfect, no embedded objects has been detected on this page
Embedded Objects such as Flash. It should only be used for specific enhancements.
Although Flash content often looks nicer, it cannot be properly indexed by search engines.
Avoid full Flash websites to maximize SEO.
Although Flash content often looks nicer, it cannot be properly indexed by search engines.
Avoid full Flash websites to maximize SEO.
Iframe
Perfect, no Iframe content has been detected on this page
Frames can cause problems on your web page because search engines will not crawl or index the content within them.
Avoid frames whenever possible and use a NoFrames tag if you must use them.
Avoid frames whenever possible and use a NoFrames tag if you must use them.
Domain Registration
具体注册时间
域名年龄: 1 Year, 128 Days
创建时间: 29th-Aug-2019
更新时间: 29th-Aug-2020
过期时间: 29th-Aug-2021
Domain age matters to a certain extent and newer domains generally struggle to get indexed and rank high in search results for their first few months (depending on other associated ranking factors). Consider buying a second-hand domain name.
Do you know that you can register your domain for up to 10 years? By doing so, you will show the world that you are serious about your business.
Do you know that you can register your domain for up to 10 years? By doing so, you will show the world that you are serious about your business.
域名WHOIS信息
域名Whois信息可以帮助您查明管理员，帐单和技术人员的
联系信息。
联系信息。
| Domain Name: pm-js.com |
| Registry Domain ID: 2427960349_DOMAIN_COM-VRSN |
| Registrar WHOIS Server: grs-whois.hichina.com |
| Registrar URL: http://whois.aliyun.com |
| Updated Date: 2019-09-02T06:14:59Z |
WhoIs domain information can help you determine the proper contact for any domain listed in the Whois database.
A WhoIs lookup identifies the administrator contact information, billing contact and the technical contact for each domain name listing or IP in the WhoIs database.
A WhoIs lookup identifies the administrator contact information, billing contact and the technical contact for each domain name listing or IP in the WhoIs database.
Indexed Pages
Indexed pages in search engines
This is the number of pages that we have discovered on your website.
A low number can indicate that bots are unable to discover your webpages, which is a common cause of a bad site architecture & internal linking, or you're unknowingly preventing bots and search engines from crawling & indexing your pages.
A low number can indicate that bots are unable to discover your webpages, which is a common cause of a bad site architecture & internal linking, or you're unknowingly preventing bots and search engines from crawling & indexing your pages.
反链数量
您的网站反链(Backlinks)数量
Backlinks are links that point to your website from other websites. They are like letters of recommendation for your site.
Since this factor is crucial to SEO, you should have a strategy to improve the quantity and quality of backlinks.
Since this factor is crucial to SEO, you should have a strategy to improve the quantity and quality of backlinks.
可用性
URL
http://pm-js.com
Length: 5 characters
Length: 5 characters
Keep your URLs short and avoid long domain names when possible.
A descriptive URL is better recognized by search engines.
A user should be able to look at the address bar and make an accurate guess about the content of the page before reaching it (e.g., http://www.mysite.com/en/products).
A descriptive URL is better recognized by search engines.
A user should be able to look at the address bar and make an accurate guess about the content of the page before reaching it (e.g., http://www.mysite.com/en/products).
Favicon图标
Favicons improve a brand's visibility.
As a favicon is especially important for users bookmarking your website, make sure it is consistent with your brand.
As a favicon is especially important for users bookmarking your website, make sure it is consistent with your brand.
自定义404页面
非常好, 您的网站已设置自定义404错误页面.
When a visitor encounters a 404 File Not Found error on your site, you're on the verge of losing the visitor that you've worked so hard to obtain through the search engines and third party links.
Creating your custom 404 error page allows you to minimize the number of visitors lost that way.
Creating your custom 404 error page allows you to minimize the number of visitors lost that way.
页面大小
0 KB (World Wide Web average is 320 Kb)
Two of the main reasons for an increase in page size are images and JavaScript files.
Page size affects the speed of your website; try to keep your page size below 2 Mb.
Tip: Use images with a small size and optimize their download with gzip.
Page size affects the speed of your website; try to keep your page size below 2 Mb.
Tip: Use images with a small size and optimize their download with gzip.
加载时间
0 second(s)
Site speed is an important factor for ranking high in Google search results and enriching the user experience.
Resources: Check out Google's developer tutorials for tips on how to to make your website run faster.
Resources: Check out Google's developer tutorials for tips on how to to make your website run faster.
PageSpeed Insights (电脑端)
/ 100
Page Speed
Pm-js.com 电脑端访问速度 非常慢. Page speed对搜索引擎和访客都非常重要
Enter your suggestion box message
语言
你没有声明网站语言
网站语言: Unknown
网站语言: Unknown
Make sure your declared language is the same as the language detected by Google
Also, define the language of the content in each page's HTML code.
Also, define the language of the content in each page's HTML code.
Domain Availability
| Domains (TLD) | 状态 |
|---|---|
| pm-js.net | Available |
| pm-js.org | Available |
| pm-js.biz | Already Registered |
| pm-js.io | Available |
| pm-js.info | Available |
Register the various extensions of your domain to protect your brand from cybersquatters.
Typo Availability
| Domains (TLD) | 状态 |
|---|---|
| om-js.com | Available |
| lm-js.com | Already Registered |
| pn-js.com | Available |
| ph-js.com | Available |
| pj-js.com | Already Registered |
Register the various typos of your domain to protect your brand from cybersquatters.
Email隐私
Email address has been found in plain text!
We don't recommend adding plain text/linked email addresses to your webpages.
As malicious bots scrape the web in search of email addresses to spam. Instead, consider using a contact form.
As malicious bots scrape the web in search of email addresses to spam. Instead, consider using a contact form.
网页安全
The website is not blacklisted and looks safe to use.
Safe Browsing to identify unsafe websites and notify users and webmasters so they can protect themselves from harm.
移动端
移动友好性
注意! 此网页不适合移动设备浏览!
移动友好性评分 /100
移动友好性评分 /100
Mobile Friendliness refers to the usability aspects of your mobile website, which Google uses as a ranking signal in mobile search results.
移动预览图
The number of people using the Mobile Web is huge; over 75 percent of consumers have access to smartphones. ??
Your website should look nice on the most popular mobile devices.
Tip: Use an analytics tool to track mobile usage of your website.
Your website should look nice on the most popular mobile devices.
Tip: Use an analytics tool to track mobile usage of your website.
移动兼容性
Perfect, no embedded objects detected.
Embedded Objects such as Flash, Silverlight or Java. It should only be used for specific enhancements.
But avoid using Embedded Objects, so your content can be accessed on all devices.
But avoid using Embedded Objects, so your content can be accessed on all devices.
PageSpeed Insights (移动端)
/ 100
Page Speed
Pm-js.com 移动端访问速度 非常慢. Page speed对搜索引擎和访客都非常重要
Enter your suggestion box message
技术信息
服务器IP
| 服务器IP | 服务器所在地区 | 主机服务商 |
|---|---|---|
| 122.114.96.147 | China | China Unicom Liaoning |
Your server's IP address has little impact on your SEO. Nevertheless, try to host your website on a server which is geographically close to your visitors.
Search engines take the geolocation of a server into account as well as the server speed.
Search engines take the geolocation of a server into account as well as the server speed.
流量统计工具
我们没有检测到这个网站上安装了流量分析统计工具。
Web analytics let you measure visitor activity on your website.
You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.
W3C Validity
W3C not validated
W3Cis a consortium that sets web standards.
Using valid markup that contains no errors is important because syntax errors can make your page difficult for search engines to index. Run the W3C validation service whenever changes are made to your website's code.
Using valid markup that contains no errors is important because syntax errors can make your page difficult for search engines to index. Run the W3C validation service whenever changes are made to your website's code.
Doc Type
Your Web Page doctype is HTML 5
The Doctype is used to instruct web browsers about the document type being used.
For example, what version of HTML the page is written in.
Declaring a doctype helps web browsers to render content correctly.
For example, what version of HTML the page is written in.
Declaring a doctype helps web browsers to render content correctly.
Encoding
Great, language/character encoding is specified: UTF-8
Specifying language/character encoding can prevent problems with the rendering of special characters.
访客
链接分析
In-Page Links
We found a total of 73 links including both internal & external links of your site
| Anchor | Type | Follow |
|---|---|---|
| 热推信息 | Internal Links | Dofollow |
| 企业分站 | Internal Links | Dofollow |
| 网站地图 | Internal Links | Dofollow |
| RSS | Internal Links | Dofollow |
| XML | Internal Links | Dofollow |
While there's no exact limit to the number of links you should include on a page, best practice is to avoid exceeding 200 links.
Links pass value from one page to another, but the amount of value that can be passed is split between all of the links on a page. This means that adding unnecessary links will dilute the potential value attributed to your other links.
Using the Nofollow attribute prevents value from being passed to the linking page, but it's worth noting that these links are still taken into account when calculating the value that is passed through each link, so Nofollow links can also dilute pagerank.
Links pass value from one page to another, but the amount of value that can be passed is split between all of the links on a page. This means that adding unnecessary links will dilute the potential value attributed to your other links.
Using the Nofollow attribute prevents value from being passed to the linking page, but it's worth noting that these links are still taken into account when calculating the value that is passed through each link, so Nofollow links can also dilute pagerank.
死链
No broken links were found on this web page
Broken links send users to non-existing web pages. They are bad for your site's usability, reputation and SEO. If you find broken links in the future, take the time to replace or remove each one.
社交
社交数据
Cost and overhead previously rendered this semi-public form of communication unfeasible.
But advances in social networking technology from 2004-2010 has made broader concepts of sharing possible.