Related CategoryMost related categories of this website.
Words count: 1 Unique Words: 1 Length: 4 characters
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The title is too short! that has less than 10 characters.
The title will be displayed in search engine results in the form of a direct link to the site.
1. ideally, the title should contain 10 to 70 characters, including spaces. (Google displays up to 70 characters in the title, and takes into account only the first 12 words.)
2. put the most important and relevant keywords in the title, try not to repeat any word.
3. each individual page should have a unique title.
DescriptionProceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
Words count: 36 Length: 247 characters
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The description is too long! It has more than 160 characters
Meta Descriptions provide concise explanations of the contents of web pages, that are commonly used by search engines on search result pages to display preview snippets for a given page.
1. it is best to keep meta descriptions between 70-160 characters.
2. a readable, compelling description using important keywords can draw a much higher click-through rate of searchers to the given web page.
3. avoid keyword stuffing, ensure each page has its own unique description.
Google SERP Preview
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of ...
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This is how your site looks like in Google Search Result Page.
an optimized SERP snippet will have a higher click through rate.
1. make sure the title is clear, simple, straight to the point.
2. make sure the description is relevant and properly summarized the page content.
KeywordsWords count: 0 Length: 0 characters keyword phrases count : 0
Meta Keywords is not set.
[ To optimize the meta keywords, Use this SEO Meta Keywords Optimizer ]
Meta keywords should not be ignored, though they are not a major ranking factor for most of search engines nowadays. A Meta keywords tag is supposed to be a brief and concise list of the most important themes of your page
1. keep your list of keywords or keyword phrases down to 10 - 20 unique words or phrases.
2. separate the words or phrases using a comma (you do not need to leave a space between words separated by commas).
3. do not repeat words or phrases.
4. put your most important word or phrases at the beginning of your list.
Keywords CloudThis keywords cloud gives your an idea of what are those important keywords appears in your website.
academy accessibility account anthropology anywhereenter applied articles authors biological biology biophysics change computational doi environmental featured institutional issue journal keywords login mathematics national password physical pnas policy psychological reviewers sciences search sign site submit subscribers sustainability terms topic username xclose
Top 20 KeywordsTotal Terms Count: 369
It is nice! the word density is quite ok.
keyword density can be used as a factor in determining whether a web page is relevant to a specified keyword or keyword phrase.
1. the optimum keyword density to be 1.0% - 3.0%. Using a keyword more than that could be considered search spam.
2. overuse of keywords, a practice called keyword stuffing, will cause a web page to be penalized.
Excellent! The page is using HTML headings (<H1> - <H6>) and inline emphasis tags (<EM><B><I><EM><STRONG>)
HTML headings and emphasis tags are the most basic forms to indicate important content.
1. use your keywords in the headings and make sure the first level heading (<H1>) includes the most important keywords.
2. never duplicate the title tag content in the heading tags.
3. for more effective SEO, use only one <H1> tag per page
The page text content is a bit too difficult to be read and understood!
Ensure your page content text can be read and understood by most of your site visitors. not too difficult nor too simple.
1. a score below 30, indicates the text content is too difficult to be read and understood.
2. a sore above 80, may suggest that the site is lack of in-depth and expertise of its topics (low quality content).
3. an optimal reading level score shall be 50-70.
Languageen Excellent! the website declared its language in use.
the detected language is : en
Declare the language in use can help search engine to better understand and rendering your page, especially when special characters are encountered.
Page Encodingutf-8 Excellent! the website declared its character encoding.
Declare the character encoding can help search engine to better rendering your page, especially when it comes to
FaviconExcellent! the website has a shortcut favicon image.
RSSthe website does not have a RSS Feed.
Robots.txtRobots.txt is not presented for the site.
Robots.txt file can be used to regulate access of search engine crawlers, properly configured robots.txt file can help
crawlers to better understand your website.
1. grand robots access to those pages you wish them to crawl.
2. restrict access to those pages you do not wish search engines to see and crawl.
XML SitemapXML Sitemap is not presented for the site.
[ To generate XML sitemap, Use this XML Sitemap Generator ]
Sitemap helps search engine crawler to identify your website pages.
1. ensure all your important pages are listed in the sitemap.
2. ensure to indicate the frequency of change and importance of each url.
3. inform search engines of the location/URL of your sitemap (eg, For Google, you can set the website sitemap location through Google Webmaster management panel).
Loading Time1.06 seconds - 11.85 Kb/s
Excellent! the loading speed is pretty fast!
Site speed is becoming an crucial ranking factor. Slow page loading is one of the biggest complains of web users. If the loading time is too long, you may need to check your server, network, or system codes and structure.
1. ideal loading time is less than 1 seconds, if it take more than 5 seconds to load your site, likely users will run out of patience, so do search engines.
2. improve your SEO by optimizing your website to have a small size and faster responding server.
Total Size13 Kb (12,556 bytes)
The page is a bit too small, it may not have enough relevant content to rank well!
Page size affects the speed of your website.
1. try to keep you page size between 30K-150K
3. use optimized images for web and set up your server with gzip for downloading
Text To Code Ratio
Excellent! the text to html code ratio is just nice, that is within 15%-70%!
the ratio of text to HTML code should always be above 15% for good SEO gain,
it is below 15% then that means that your website probably needs more text content.
1. a ratio between 25% and 70% is ideal, when it goes beyond than that, the page might run the risk of being considered as spam. As long as the content is relevant and gives essential information, it is a plus point to have more of it.
2. improve your SEO by adding more relevant text to your pages and also increasing your keyword density.
FlashExcellent! No flash component is detected on this page.
Flash content can not be properly indexed by search engines, and normally flash file is large in size, which slow down the loading of your page.
1. avoid flash content whenever possible if you wish to have a fast and SEO friendly website.
FrameExcellent! No frame is detected on this page.
Framesets and individual frames could cause problem for search engine to crawl your pages
1. avoid frames whenever possible.
2. search engines do not like frames.
3. use iframe instead if you really have no choice.
Inline CSS2 Inline CSS components are detected on this page.
It is a good practice to move inline CSS rules into an external CSS file in order to make your page lighter and increasing the text to code ratio.
1. move inline css rules to external css file.
2. separate style from html.
Nested TableExcellent! No nested table is detected on this page (nested table : 0, total table : 0)
nested tables could slow down page rendering and lead to bad user experience.
1. avoiding <table> for your page layout.
2. using <div> instead of <table>.
Plain Text Email1 Email Address (firstname.lastname@example.org) was detected on this page.
Redirect Count5 redirections were detected for loading this page.
Using HTTPSExcellent! HTTPS is used for your page.
WWW ResolveExcellent! the websites https://www.pnas.org/action/cookieAbsent and http://pnas.org are resolved to the same url :https://www.pnas.org/action/cookieAbsent
Search Engines treat URLs with or without "www" as two different records.
1. edit your .htaccess file and permanently redirect one to the other (eg redirect www.mysite.com to mysite.com).
You may use url rewrite techniques to make these 14 urls to be SEO friendly.
clean, short and relevant URLs are favoured by users and search engines
1. use url rewrite to turn dynamic pages with query parameters into seo friendly static pages.
2. put your important keywords in the url.
3. good urls are not only user friendly but also seo friendly.
Underscore In URL
You have 1 Urls with underscore.
Search Engines treat hyphen as word separator, they do not treat underscore as word separator.
1. use hyphen "-" instead of underscore "_" to optimize your page url.
2. help search engines to better understand your url, eventually will benefit your page`s ranking.
You have more than 100 links (124).
reasonable number of links (below 100) per page will give a better user experience.
1. keep the number of links per page below 100.
2. having more than 100 links in a single page will lead to a bad user experience, and it possibly runs into the risk of been considered as spam.
3. search engines may not follow all the links if you have too many of them in a single page.
Excellent! all images are associated with an ALT value.
search engines cannot `see` images, proper Alt content will help them to better understand and index images.
1. always add alt attributes to images. Alt is mandatory for accessibility and for valid XHTML.
2. words used within an image`s Alt attribute should be its text equivalent and convey the same information.
3. use a human-readable caption and descriptive text around the image.
Too many (4) external style sheet files , it will slow down the downloading.
Too many (6) external scripts files , it will slow down the downlaoding.
put scripts together and link them from an external files rather then put them in the same file as the main page.
1. reduce the use of in-page scripts, put them in separate files and link them in.
2. reduce the number of external script files, it will help browser to make lesser number of http requests from the server.
3. optimize or compress the script files to have smaller size and faster loading.
Blog Or News Release
Excellent! we have found blog linked to your site.
Having a blog is a great way to provide fresh content and retain users, search engines favour it too.
1. regularly update your blog and provide fresh and quality content.
2. relevant blogs of your website topics, generate more credits in the eyes of your visitors, as well as search engines.
Excellent! the website is listed in the DMOZ open directory. DMOZ Open Directory Project
Google AnalyticsAnalytics Service is not implemented for the site.
Google Page Rank8 Excellent! the website has a high page rank (8/10).
Links From Root Domains160
Excellent! You do have a lot of root domains (160) linked to your site pnas.org.
Number of backlinks from some other root domains is an indicator of domain authority, the more backlinks your site has, the higher its domain authority, which leads to a higher chance of better ranking.
1. make it easy for others to link to your site, provide the code if possible.
2. links from older domains are more powerful than links from new domains.
3. links from .edu and .gov generally have a higher value.
Social EngagementYour site has an excellent social media engagement!
Facebook Likes 1,881
Facebook Shares 1,668
Facebook Comments 980
Social Media IntegrationExcellent! your site is well integrated with social media networks.
Excellent! the website has a good Trustworthiness Score (92/100).
Users are concerned about the safety of their online transactions. Trustworthiness rating is based on real user ratings and that tells you how much other users trust this site, so do the serch engines. note: this trustworthiness score is provided by WOT (Web of Trust).
1. pay attention to the look and design of your site, many people look for visual cues when assessing a site`s credibility
2. make your site easy to use, sites that are easy to navigate are perceived as being more trustworthy.
3. make it easy for user to contact you, users will be more comfortable and feel more secured shall they need to get in touch with you.
Child Safe91 Excellent! the website has a good Child Safe Score (91/100).
Safe BrowsingSafe! the site pnas.org is NOT currently listed as suspicious, most-likely it is clean from malware and phining code [ verify this by Google Safe Browsing ]
Ensure that your site is malware free and does not cause harm to users` computers.
1. do not put virus, malicious worms, adwares, trojans, spywares and suspicious phishing code in your server.
2. take suspicious behaviours seriously, have a regular check-up and monitor closely of your server`s log files.
3. if your site is black-listed by Google as suspicious, clean it up before requesting for a review.
Traffic Rank5,610th most visited website in the world.
3,353th most visited website in China
your site has an excellent high traffic rank in the world.
Websites On Same ServerExcellent! You domain pnas.org is the only one hosted on the server (ip : 188.8.131.52).
Too many domains hosted on the same server is an indicator that you are not really serious about your website, and your site will have a higher chance to be surrounded by bad neighbours.
1. the fewer domains hosted on the same server/ip the better.
2. avoid shared hosting whenever possible, especially when there are already hundreds or thousands of sites are hosted on the same server.
3. dedicated ip or resources for your site not only do good to your site visitors but also favoured by search engines.
Server Locationyour server (IP : 184.108.40.206) is located at United States
the most site visitors come from China
your server is located in different place from where most of your site visitors come from.
your website server does not support HTTP Compression.
your website server does not support Caching.
Server SignatureExcellent! the website server signature is off.
A secure and safe server is not only good for your site visitors but also good for search engines.
1. server software version information can be utilized by malicious visitors to attack your server.
2. by turning off the server signature, you actually have made your server a little bit more secure.
3. for Apache server - edit the apache2.conf or the .htaccess file to turn server signature off.
Domain Age27 years, 0 days old ( 1st registered on : 1996-03-23 )
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excellent, the domain age is old enough.
Domain Expires4 years, 365 days from today ( expires on : 2028-03-23 )
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excellent, the domain is not expiring too soon.
Domain Infopnas.org ( 8 characters )
Domain Registrar : Public Interest Registry
[ To check the detailed whois info, Use this Whois Lookup Tool ]
27 years, 0 days old
You have a nice choice of domain name, which is of a right length (8 characters).
domain name choice and domain age are crucial for SEO.
1. keep the domain name short and relevant to the content, which will be easier to be remembered and related to.
2. older domain tends to be more trustworthy.
3. register a domain for more than 1 year, and search engine will think it is a serious business.
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