Tools & Wizards About Us
ir-spectra.com screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    95% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

ir-spectra.com

IR Spectra. Infrared spectra Library FTIR. FT-IR Database

Page Load Speed

2.2 sec in total

First Response

594 ms

Resources Loaded

1.5 sec

Page Rendered

115 ms

ir-spectra.com screenshot

About Website

Welcome to ir-spectra.com homepage info - get ready to check IR Spectra best content right away, or after learning these important things about ir-spectra.com

Infrared spectra library. IR spectra. FTIR spectra database chemicals, polymers, pharmaceutical, drugs, forensic, hazardous, explosives, pesticides

Visit ir-spectra.com

Key Findings

We analyzed Ir-spectra.com page load time and found that the first response time was 594 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

ir-spectra.com performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.8 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

88/100

25%

SI (Speed Index)

Value1.3 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.8 s

100/100

10%

Network Requests Diagram

ir-spectra.com

594 ms

ga.js

7 ms

image003.png

594 ms

__utm.gif

12 ms

img6324015.png

966 ms

Our browser made a total of 8 requests to load all elements on the main page. We found that 75% of them (6 requests) were addressed to the original Ir-spectra.com, 25% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (966 ms) belongs to the original domain Ir-spectra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.8 kB (22%)

Content Size

357.9 kB

After Optimization

278.0 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ir-spectra.com main page is 357.9 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. Only 5% of websites need less resources to load. Images take 332.1 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 6.0 kB

  • Original 8.6 kB
  • After minification 8.5 kB
  • After compression 2.5 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 6.0 kB or 70% of the original size.

Image Optimization

-22%

Potential reduce by 73.8 kB

  • Original 332.1 kB
  • After minification 258.4 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, IR Spectra needs image optimization as it can save up to 73.8 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 kB

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. This website has mostly compressed JavaScripts.

Requests Breakdown

We found no issues to fix!

Requests Now

7

After Optimization

7

  • Images
  • JavaScript

The browser has sent 7 CSS, Javascripts, AJAX and image requests in order to completely render the main page of IR Spectra. According to our analytics all requests are already optimized.

Network Requests Diagram

ir-spectra.com

ir-spectra.com

594 ms

ga.js

ga.js

7 ms

image003.png

image003.png

594 ms

__utm.gif

__utm.gif

12 ms

img6324015.png

img6324015.png

966 ms

img6324062.png

img6324062.png

958 ms

image009.gif

image009.gif

242 ms

image008.gif

image008.gif

135 ms

Accessibility Review

ir-spectra.com accessibility score

83

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

Best Practices

ir-spectra.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

ir-spectra.com SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ir-spectra.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Ir-spectra.com main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

ir-spectra.com

Open Graph description is not detected on the main page of IR Spectra. 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: