Report Summary

  • 38

    Performance

    Renders faster than
    58% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 84

    SEO

    Google-friendlier than
    53% of websites

televue.com

Tele Vue Optics: Home

Page Load Speed

668 ms in total

First Response

261 ms

Resources Loaded

407 ms

Page Rendered

0 ms

televue.com screenshot

About Website

Visit televue.com now to see the best up-to-date Tele Vue content for United States and also check out these interesting facts you probably never knew about televue.com

Tele Vue Optics, founded in 1977, has been thrilling amateur astronomers since 1979. It is our mission. It's in the materials we choose, the designs we create, the craftsmanship we demonstrate...the i...

Visit televue.com

Key Findings

We analyzed Televue.com page load time and found that the first response time was 261 ms and then it took 407 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Performance Metrics

televue.com performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

17/100

10%

LCP (Largest Contentful Paint)

Value7.7 s

4/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.948

3/100

15%

TTI (Time to Interactive)

Value7.2 s

51/100

10%

Network Requests Diagram

televue.com

261 ms

commonTV5.js

138 ms

JScriptCookieLib.js

145 ms

Our browser made a total of 3 requests to load all elements on the main page. We found that all of those requests were addressed to Televue.com and no external sources were called. The less responsive or slowest element that took the longest time to load (261 ms) belongs to the original domain Televue.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 3.7 kB (73%)

Content Size

5.0 kB

After Optimization

1.3 kB

In fact, the total size of Televue.com main page is 5.0 kB. This result falls within a big category (top 100 000) of medium weight web pages. Only a small number of websites need less resources to load. Javascripts take 3.5 kB which makes up the majority of the site volume.

HTML Optimization

-50%

Potential reduce by 764 B

  • Original 1.5 kB
  • After minification 1.5 kB
  • After compression 765 B

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 764 B or 50% of the original size.

JavaScript Optimization

-83%

Potential reduce by 2.9 kB

  • Original 3.5 kB
  • After minification 1.4 kB
  • After compression 580 B

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 2.9 kB or 83% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

2

After Optimization

2

The browser has sent 2 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Tele Vue. According to our analytics all requests are already optimized.

Accessibility Review

televue.com accessibility score

91

Accessibility Issues

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

High

Links do not have a discernible name

Best Practices

televue.com best practices score

69

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

Serves images with low resolution

General

Impact

Issue

High

Registers an unload listener

Low

Detected JavaScript libraries

SEO Factors

televue.com SEO score

84

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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 Televue.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 Televue.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

Open Graph description is not detected on the main page of Tele Vue. 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: