Tools & Wizards About Us
silverfrost.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

silverfrost.com

Silverfrost: Home to FTN95, Fortran for Windows

Page Load Speed

1.3 sec in total

First Response

158 ms

Resources Loaded

871 ms

Page Rendered

295 ms

silverfrost.com screenshot

About Website

Click here to check amazing Silverfrost content for India. Otherwise, check out these important facts you probably never knew about silverfrost.com

Home to FTN95: Fortran for Windows. Free personal edition. .NET, Win32, x64, 64-bit.

Visit silverfrost.com

Key Findings

We analyzed Silverfrost.com page load time and found that the first response time was 158 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

silverfrost.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

51/100

25%

SI (Speed Index)

Value4.9 s

66/100

10%

TBT (Total Blocking Time)

Value360 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.027

100/100

15%

TTI (Time to Interactive)

Value6.2 s

63/100

10%

Network Requests Diagram

silverfrost.com

158 ms

Default.aspx

277 ms

bootstrap.min.css

42 ms

main.css

52 ms

jquery-3.4.1.slim.min.js

31 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 81% of them (22 requests) were addressed to the original Silverfrost.com, 7% (2 requests) were made to Stackpath.bootstrapcdn.com and 4% (1 request) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (358 ms) belongs to the original domain Silverfrost.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.5 kB (31%)

Content Size

357.6 kB

After Optimization

245.1 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Silverfrost.com main page is 357.6 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 341.4 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 8.8 kB

  • Original 12.9 kB
  • After minification 12.3 kB
  • After compression 4.1 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 8.8 kB or 68% of the original size.

Image Optimization

-30%

Potential reduce by 101.1 kB

  • Original 341.4 kB
  • After minification 240.2 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Obviously, Silverfrost needs image optimization as it can save up to 101.1 kB or 30% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-76%

Potential reduce by 2.5 kB

  • Original 3.3 kB
  • After minification 2.3 kB
  • After compression 789 B

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Silverfrost.com needs all CSS files to be minified and compressed as it can save up to 2.5 kB or 76% of the original size.

Requests Breakdown

Number of requests can be reduced by 3 (12%)

Requests Now

25

After Optimization

22

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Silverfrost. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

silverfrost.com

silverfrost.com

158 ms

Default.aspx

Default.aspx

277 ms

bootstrap.min.css

bootstrap.min.css

42 ms

main.css

main.css

52 ms

jquery-3.4.1.slim.min.js

jquery-3.4.1.slim.min.js

31 ms

popper.min.js

popper.min.js

27 ms

bootstrap.min.js

bootstrap.min.js

51 ms

js

js

79 ms

logos.gif

logos.gif

52 ms

search.png

search.png

105 ms

silverfrost_ftn95.jpg

silverfrost_ftn95.jpg

157 ms

cylinder.png

cylinder.png

246 ms

dendrogram.png

dendrogram.png

202 ms

diffusion.png

diffusion.png

249 ms

ellipses_c.png

ellipses_c.png

253 ms

gauss3.png

gauss3.png

249 ms

orbits.png

orbits.png

208 ms

perspec1.png

perspec1.png

303 ms

phaseportrait.png

phaseportrait.png

258 ms

psfrag_cdf.png

psfrag_cdf.png

301 ms

psfrag_equation.png

psfrag_equation.png

300 ms

random_walk_in_three_dimensions.png

random_walk_in_three_dimensions.png

301 ms

rosenbrock.png

rosenbrock.png

304 ms

trinom.png

trinom.png

312 ms

twister.png

twister.png

356 ms

ukmap.png

ukmap.png

358 ms

waves.png

waves.png

357 ms

Accessibility Review

silverfrost.com accessibility score

83

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

Best Practices

silverfrost.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

silverfrost.com SEO score

71

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Silverfrost.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Silverfrost.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

silverfrost.com

Open Graph description is not detected on the main page of Silverfrost. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: