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Web Frameworks

90 jstor.org Last Updated: 7 months

Success 62% of passed verification steps
Warning 23% of total warning
Errors 15% of total errors, require fast action

Desktop

Mobile

Performance Desktop Score 95%
Best Practices Desktop Score 69%
SEO Desktop Score 100%
Progressive Web App Desktop Score 50%
Performance Mobile Score 73%
Best Practices Mobile Score 62%
SEO Mobile Score 100%
Progressive Web App Mobile Score 52%
Page Authority Authority 62%
Domain Authority Domain Authority 92%
Moz Rank 6.2/10
Bounce Rate Rate 0%
Charset Encoding
Great, language/character encoding is specified: UTF-8
Title Tag 5 Characters
JSTOR
Meta Description 76 Characters
JSTOR is a digital library of academic journals, books, and primary sources.
Effective URL 20 Characters
http://www.jstor.org
Excerpt Page content
JSTOR ...
Keywords Cloud Density
jstor10 search5 research4 ithaka3 advanced3 publisher2 books2 support2 about2 data2
Keyword Consistency Keyword density is one of the main terms in SEO
Keyword Freq Title Desc Domain H1 H2
jstor 10
search 5
research 4
ithaka 3
advanced 3
publisher 2
books 2
support 2
about 2
data 2
Google Preview Your look like this in google search result
JSTOR
http://www.jstor.org
JSTOR is a digital library of academic journals, books, and primary sources.
Robots.txt File Detected
Sitemap.xml File Detected
Whois Is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system
Updated: 2019-09-04 / 10 months
Create on: 1996-02-16 / 24 years
Expires on: 2021-02-17 / 7 months 19 days

Network Solutions, LLC ,US
Registrar Whois Server: whois.networksolutions.com
Registrar URL: http://www.networksolutions.com

Nameservers
USNJPR2NS02.ITHAKA.ORG
USNJPR1NS01.ITHAKA.ORG
USMIAA1NS03.ITHAKA.ORG
USNJPR2NS04.ITHAKA.ORG
AA2NS13.ITHAKA.ORG
Page Size Code & Text Ratio
Document Size: ~25.15 KB
Code Size: ~15.18 KB
Text Size: ~9.97 KB Ratio: 39.63%

Estimation Traffic and Earnings

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Technologies

PWA - Manifest

Manifest is not valid
Your site don't have valid manifest.json, read more in Web App Manifest

Desktop

Desktop Screenshot
JavaScript execution time 0.1 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Speed Index 1.1 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 1.4 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).
Avoids enormous network payloads Total size was 858 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimizes main-thread work 0.7 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 1.0 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 1 vulnerability detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 8 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 240 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 5 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 1.1 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 44 requests • 858 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 13 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 60 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 1.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Estimated Input Latency 10 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
Remove unused CSS Potential savings of 39 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 109 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Avoid multiple page redirects Potential savings of 190 ms
Redirects introduce additional delays before the page can be loaded
Does not use HTTPS 1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Server response times are low (TTFB) Root document took 170 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 370 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Efficiently encode images Potential savings of 75 KB
Optimized images load faster and consume less cellular data
Enable text compression Potential savings of 5 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Minimize third-party usage Third-party code blocked the main thread for 0 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 0 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.

Mobile

Mobile Screenshot
Avoids enormous network payloads Total size was 768 KB
Large network payloads cost users real money and are highly correlated with long load times
Minimize main-thread work 3.0 s
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this
First Contentful Paint 2.6 s
First Contentful Paint marks the time at which the first text or image is painted
Includes front-end JavaScript libraries with known security vulnerabilities 1 vulnerability detected
Some third-party scripts may contain known security vulnerabilities that are easily identified and exploited by attackers
Avoid chaining critical requests 8 chains found
The Critical Request Chains below show you what resources are loaded with a high priority. Consider reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load
Avoids an excessive DOM size 240 elements
A large DOM will increase memory usage, cause longer [style calculations](https://developers.google.com/web/fundamentals/performance/rendering/reduce-the-scope-and-complexity-of-style-calculations), and produce costly [layout reflows](https://developers.google.com/speed/articles/reflow)
Minify JavaScript Potential savings of 5 KB
Minifying JavaScript files can reduce payload sizes and script parse time
First Meaningful Paint 2.6 s
First Meaningful Paint measures when the primary content of a page is visible
Keep request counts low and transfer sizes small 44 requests • 768 KB
To set budgets for the quantity and size of page resources, add a budget.json file
Serve static assets with an efficient cache policy 13 resources found
A long cache lifetime can speed up repeat visits to your page
Max Potential First Input Delay 220 ms
The maximum potential First Input Delay that your users could experience is the duration, in milliseconds, of the longest task
Time to Interactive 6.5 s
Time to interactive is the amount of time it takes for the page to become fully interactive
Network Round Trip Times 0 ms
Network round trip times (RTT) have a large impact on performance. If the RTT to an origin is high, it's an indication that servers closer to the user could improve performance
Estimated Input Latency 60 ms
Estimated Input Latency is an estimate of how long your app takes to respond to user input, in milliseconds, during the busiest 5s window of page load. If your latency is higher than 50 ms, users may perceive your app as laggy
First Contentful Paint (3G) 5251.5 ms
First Contentful Paint 3G marks the time at which the first text or image is painted while on a 3G network
Tap targets are sized appropriately 100% appropriately sized tap targets
Interactive elements like buttons and links should be large enough (48x48px), and have enough space around them, to be easy enough to tap without overlapping onto other elements
Document uses legible font sizes 98.39% legible text
Font sizes less than 12px are too small to be legible and require mobile visitors to “pinch to zoom” in order to read. Strive to have >60% of page text ≥12px
Remove unused CSS Potential savings of 40 KB
Remove dead rules from stylesheets and defer the loading of CSS not used for above-the-fold content to reduce unnecessary bytes consumed by network activity
Serve images in next-gen formats Potential savings of 110 KB
Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption
Avoid multiple page redirects Potential savings of 630 ms
Redirects introduce additional delays before the page can be loaded
Does not use HTTPS 1 insecure request found
All sites should be protected with HTTPS, even ones that don't handle sensitive data. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs
Server response times are low (TTFB) Root document took 150 ms
Time To First Byte identifies the time at which your server sends a response
Eliminate render-blocking resources Potential savings of 1,500 ms
Resources are blocking the first paint of your page. Consider delivering critical JS/CSS inline and deferring all non-critical JS/styles
Enable text compression Potential savings of 5 KB
Text-based resources should be served with compression (gzip, deflate or brotli) to minimize total network bytes
Efficiently encode images Potential savings of 63 KB
Optimized images load faster and consume less cellular data
Reduce the impact of third-party code Third-party code blocked the main thread for 280 ms
Third-party code can significantly impact load performance. Limit the number of redundant third-party providers and try to load third-party code after your page has primarily finished loading
Total Blocking Time 370 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds.
Reduce JavaScript execution time 1.6 s
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this
Server Backend Latencies 0 ms
Server latencies can impact web performance. If the server latency of an origin is high, it's an indication the server is overloaded or has poor backend performance
Defer offscreen images Potential savings of 43 KB
Consider lazy-loading offscreen and hidden images after all critical resources have finished loading to lower time to interactive
Speed Index 3.6 s
Speed Index shows how quickly the contents of a page are visibly populated
First CPU Idle 6.2 s
First CPU Idle marks the first time at which the page's main thread is quiet enough to handle input. [Learn more](https://web.dev/first-cpu-idle).

Speed And Optimization Tips

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Alexa Rank

0

Local Rank: / Users: / PageViews:

Global Rank

Information Server

Response Header HTTP headers carry information about the client browser, the requested page and the server
HTTP/1.1 200 OK
Server: Apache/2.4.29 (Ubuntu)
X-Frame-Options: SAMEORIGIN
Set-Cookie: AccessSession=H4sIAAAAAAAAAJ2RSW_bMBCF7_kVgs6hwW3IYW6W0g0FekluQRCMuKAqHNuwpBRFkP9emZJtOMslR37vzePj8PmiKMo2lMVVUaYElpsQfASndSNcDIaCdip5Iu9Nebk3-9ndkmdEJMSE_8y4qmtQwkirjONfq2u4rr6IysgKAAGUnNy72Y0x8KB9cqhQc8-xscmKFKwezY5wcg_DbCfbIIG0rEmKM20lMVTcMYwSUAMHDGkaoaH_vR9JtOpiJk-0mlIEWG3N_qlamiy125yuYCGlWYiFVHNIeGzX5yldtzkHvT8_j4vquz26K57H82m7gnPucu7I5iqlPoA4A-d0o5QDlhwB005yhkiRSRcSCvRJBTrM9P-2MQ99222G7TH6iCvqWj9po_Ry-U4h9bqQfFMoIrchepaUbZj2Fhh5lIx7gWNF33DinyxU3E8r7U-_otzpV1b0kTB8IFDf7_Lu54fWdb721_JQpb7N4HEzrHtq1w9Pbfz7UB_lm0n-cft9-XOZK168_AfQFj0hIQMAAA; Path=/
Set-Cookie: AccessSessionSignature=2204e48c9f28138d886c41aa73fefbc7c354e39eea98908fb0e4e06cf842831f; Path=/
Set-Cookie: AccessSessionTimedSignature=b4e6ee574db7e49e3b81d26cd1b055be9457cff1f0f30affd40814e47df484bd; Path=/
Set-Cookie: UUID=a7b8a527-bf30-472a-8309-8e25845058df; expires=Fri, 25-Nov-2022 05:25:06 GMT; Max-Age=94590000; Path=/
Set-Cookie: csrftoken=OgS0yLGj66bYeDTHBUSG4DYOk1YN42rZBgA4HMJz4dvsb7YnCSAbibCcDbJmc7Og; expires=Tue, 24-Nov-2020 10:25:06 GMT; Max-Age=31449600; Path=/; Secure
Set-Cookie: ReferringRequestId=search:209d322bb0092d9c33b534e35b83d370; Path=/
Set-Cookie: ADRUM_BT=R:0|n:Ithaka_20fb118f-0305-4128-b6c9-ee5f3357d8aa|g:d4a8678e-35c5-46cf-b5b4-1f1f639f45ac|i:128934|e:82; Max-Age=30; Path=/; Secure
Content-Encoding: gzip
Content-Type: text/html; charset=utf-8
X-JSTOR-Restarts: 0
Accept-Ranges: bytes
Age: 0
Transfer-Encoding: chunked
Accept-Ranges: bytes
Date: Tue, 26 Nov 2019 10:25:06 GMT
Via: 1.1 varnish
Age: 0
Connection: keep-alive
X-Served-By: cache-mdw17374-MDW
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1574763906.402022,VS0,VE87
Vary: Cookie,Accept-Encoding,Fastly-SSL
DNS Records DNS Resource Records associated with a hostname
View DNS Records

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