Tools & Wizards About Us
oplspectra.com screenshot

Report Summary

  • 46

    Performance

    Renders faster than
    65% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

oplspectra.com

Serving Professional Gemmologists & Students | Orwin Products Limited

Page Load Speed

3.6 sec in total

First Response

387 ms

Resources Loaded

2.8 sec

Page Rendered

396 ms

oplspectra.com screenshot

About Website

Visit oplspectra.com now to see the best up-to-date Oplspectra content and also check out these interesting facts you probably never knew about oplspectra.com

Our aim has been to produce equipment primarily for gemmology students. Orwin Products Limited continually strives to improve the range and quality of the items it supplies because a student’s first c...

Visit oplspectra.com

Key Findings

We analyzed Oplspectra.com page load time and found that the first response time was 387 ms and then it took 3.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

oplspectra.com performance score

46

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

20/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value6.6 s

38/100

10%

TBT (Total Blocking Time)

Value370 ms

71/100

30%

CLS (Cumulative Layout Shift)

Value0.091

92/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

www.oplspectra.com

387 ms

js

102 ms

css

40 ms

header-b6701b81.min.css

89 ms

header-87744b7b.min.css

260 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 74% of them (29 requests) were addressed to the original Oplspectra.com, 13% (5 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (704 ms) belongs to the original domain Oplspectra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 62.7 kB (4%)

Content Size

1.6 MB

After Optimization

1.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Oplspectra.com main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 50% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 26.4 kB

  • Original 34.2 kB
  • After minification 32.3 kB
  • After compression 7.8 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 26.4 kB or 77% of the original size.

Image Optimization

-2%

Potential reduce by 34.2 kB

  • Original 1.5 MB
  • After minification 1.4 MB

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. Oplspectra images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 221 B

  • Original 95.7 kB
  • After minification 95.7 kB
  • After compression 95.5 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.

CSS Optimization

-4%

Potential reduce by 1.9 kB

  • Original 52.5 kB
  • After minification 52.5 kB
  • After compression 50.7 kB

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. Oplspectra.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (13%)

Requests Now

31

After Optimization

27

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Oplspectra. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.oplspectra.com

www.oplspectra.com

387 ms

js

js

102 ms

css

css

40 ms

header-b6701b81.min.css

header-b6701b81.min.css

89 ms

header-87744b7b.min.css

header-87744b7b.min.css

260 ms

header-c6901870.min.js

header-c6901870.min.js

416 ms

footer-a40230fc.min.js

footer-a40230fc.min.js

339 ms

js

js

74 ms

analytics.js

analytics.js

25 ms

collect

collect

12 ms

opl-logo.png

opl-logo.png

116 ms

opl-home-hero-1702x700.jpg

opl-home-hero-1702x700.jpg

337 ms

opl-logo-new.png

opl-logo-new.png

190 ms

home_slider_lifetime_award-600x400.jpg

home_slider_lifetime_award-600x400.jpg

115 ms

opl_book_signing_naja-600x400.jpg

opl_book_signing_naja-600x400.jpg

197 ms

gem_dealing_tour_sri_lanka-600x400.jpg

gem_dealing_tour_sri_lanka-600x400.jpg

193 ms

sapphire_mining_in_elahera-600x400.jpg

sapphire_mining_in_elahera-600x400.jpg

350 ms

washing_gem_gravel_ratnapura-600x400.jpg

washing_gem_gravel_ratnapura-600x400.jpg

434 ms

typical_gem_pit_ratnapura-600x400.jpg

typical_gem_pit_ratnapura-600x400.jpg

355 ms

naj_study_group-600x400.jpg

naj_study_group-600x400.jpg

451 ms

gem_examination-600x400.jpg

gem_examination-600x400.jpg

282 ms

arthurcclarke-600x400.jpg

arthurcclarke-600x400.jpg

452 ms

booksigning-600x400.jpg

booksigning-600x400.jpg

426 ms

colinaward-600x400.jpg

colinaward-600x400.jpg

431 ms

oplconfstand-600x400.jpg

oplconfstand-600x400.jpg

436 ms

tuscon-del.jpg

tuscon-del.jpg

512 ms

tuson-rubin.jpg

tuson-rubin.jpg

514 ms

home-banner-bg.jpg

home-banner-bg.jpg

595 ms

product_students_guide.jpg

product_students_guide.jpg

519 ms

pocket_spectroscope.jpg

pocket_spectroscope.jpg

704 ms

teaching_spectroscope.jpg

teaching_spectroscope.jpg

619 ms

product_dichroscope_in_case.jpg

product_dichroscope_in_case.jpg

598 ms

5aUu9_-1phKLFgshYDvh6Vwt5eFIqEp2jkVBuxM.ttf

5aUu9_-1phKLFgshYDvh6Vwt5eFIqEp2jkVBuxM.ttf

111 ms

5aUz9_-1phKLFgshYDvh6Vwt7VptuGdUhm8.ttf

5aUz9_-1phKLFgshYDvh6Vwt7VptuGdUhm8.ttf

155 ms

5aUu9_-1phKLFgshYDvh6Vwt5fFPqEp2jkVBuxM.ttf

5aUu9_-1phKLFgshYDvh6Vwt5fFPqEp2jkVBuxM.ttf

171 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

554 ms

MTCORSVA.woff

MTCORSVA.woff

562 ms

5aUt9_-1phKLFgshYDvh6Vwt7V9dv21WpG1Lsw.ttf

5aUt9_-1phKLFgshYDvh6Vwt7V9dv21WpG1Lsw.ttf

244 ms

5aUo9_-1phKLFgshYDvh6Vwt7V9VFE9GiU9DmRGyBQ.ttf

5aUo9_-1phKLFgshYDvh6Vwt7V9VFE9GiU9DmRGyBQ.ttf

177 ms

Accessibility Review

oplspectra.com accessibility score

59

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

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

Best Practices

oplspectra.com best practices score

75

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

Low

Detected JavaScript libraries

SEO Factors

oplspectra.com SEO score

86

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Oplspectra.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 Oplspectra.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

oplspectra.com

Open Graph data is detected on the main page of Oplspectra. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: