Tools & Wizards About Us
celco.ir screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    71% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

celco.ir

صفحه اول I شرکت عمران زیست آزما I آزمایشگاه معتمد سازمان محیط زیست

Page Load Speed

2.5 sec in total

First Response

559 ms

Resources Loaded

1.8 sec

Page Rendered

148 ms

celco.ir screenshot

About Website

Visit celco.ir now to see the best up-to-date Celco content for Iran and also check out these interesting facts you probably never knew about celco.ir

شرکت عمران زیست آزما (سلکو) ارایه دهنده خدمات مشاوره در کلیه زمینه های مهندسی و مدیریت محیط زیست و آزمایشگاه معتمد سازمان حفاظت محیط زیست با کادری مجرب

Visit celco.ir

Key Findings

We analyzed Celco.ir page load time and found that the first response time was 559 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster. This domain responded with an error, which can significantly jeopardize Celco.ir rating and web reputation

Performance Metrics

celco.ir performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.7 s

60/100

10%

LCP (Largest Contentful Paint)

Value7.9 s

3/100

25%

SI (Speed Index)

Value6.8 s

35/100

10%

TBT (Total Blocking Time)

Value230 ms

86/100

30%

CLS (Cumulative Layout Shift)

Value0.022

100/100

15%

TTI (Time to Interactive)

Value10.3 s

24/100

10%

Network Requests Diagram

celco.ir

559 ms

Negar.css

102 ms

Negar_rtl.css

157 ms

Core.css

215 ms

conference.css

157 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that all of those requests were addressed to Celco.ir and no external sources were called. The less responsive or slowest element that took the longest time to load (559 ms) belongs to the original domain Celco.ir.

Page Optimization Overview & Recommendations

Page size can be reduced by 73.4 kB (53%)

Content Size

138.3 kB

After Optimization

64.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Celco.ir main page is 138.3 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. 15% of websites need less resources to load. CSS take 79.8 kB which makes up the majority of the site volume.

HTML Optimization

-63%

Potential reduce by 2.7 kB

  • Original 4.2 kB
  • After minification 3.8 kB
  • After compression 1.6 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 2.7 kB or 63% of the original size.

Image Optimization

-9%

Potential reduce by 5.0 kB

  • Original 54.3 kB
  • After minification 49.3 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. Celco images are well optimized though.

CSS Optimization

-83%

Potential reduce by 65.8 kB

  • Original 79.8 kB
  • After minification 58.7 kB
  • After compression 14.0 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. Celco.ir needs all CSS files to be minified and compressed as it can save up to 65.8 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (75%)

Requests Now

16

After Optimization

4

  • Images
  • CSS

The browser has sent 16 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Celco. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

celco.ir

celco.ir

559 ms

Negar.css

Negar.css

102 ms

Negar_rtl.css

Negar_rtl.css

157 ms

Core.css

Core.css

215 ms

conference.css

conference.css

157 ms

eMag.css

eMag.css

158 ms

eShop.css

eShop.css

159 ms

Forum.css

Forum.css

165 ms

Gallery.css

Gallery.css

346 ms

Links.css

Links.css

338 ms

Multimedia.css

Multimedia.css

233 ms

News.css

News.css

515 ms

Pages.css

Pages.css

243 ms

Poll.css

Poll.css

288 ms

Products.css

Products.css

325 ms

this.css

this.css

366 ms

conference_rtl.css

conference_rtl.css

357 ms

eMag_rtl.css

eMag_rtl.css

363 ms

eShop_rtl.css

eShop_rtl.css

372 ms

Forum_ltr.css

Forum_ltr.css

393 ms

Gallery_rtl.css

Gallery_rtl.css

413 ms

Links_rtl.css

Links_rtl.css

438 ms

Multimedia_rtl.css

Multimedia_rtl.css

440 ms

News_rtl.css

News_rtl.css

449 ms

Poll_rtl.css

Poll_rtl.css

491 ms

Products_rtl.css

Products_rtl.css

516 ms

this_rtl.css

this_rtl.css

525 ms

bg.png

bg.png

269 ms

close.png

close.png

236 ms

loading.gif

loading.gif

238 ms

prev.png

prev.png

238 ms

next.png

next.png

239 ms

bg_repeater-5.jpg

bg_repeater-5.jpg

327 ms

wYekan.woff

wYekan.woff

503 ms

Accessibility Review

celco.ir accessibility score

100

Accessibility Issues

Best Practices

celco.ir 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

celco.ir SEO score

100

Search Engine Optimization Advices

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

    FA

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Celco.ir can be misinterpreted by Google and other search engines. Our service has detected that Persian 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 Celco.ir 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

celco.ir

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