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the-engineering-lab.com screenshot

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

the-engineering-lab.com

The Engineering Lab | Nastran SOL 200 Tutorials, Training & Web Apps

Page Load Speed

4.7 sec in total

First Response

226 ms

Resources Loaded

1.8 sec

Page Rendered

2.6 sec

the-engineering-lab.com screenshot

About Website

Click here to check amazing The Engineering Lab content. Otherwise, check out these important facts you probably never knew about the-engineering-lab.com

Learn to use Nastran SOL 200 & optimize structures automatically. Access 60+ Nastran SOL 200 tutorials and the SOL 200 Web App.

Visit the-engineering-lab.com

Key Findings

We analyzed The-engineering-lab.com page load time and found that the first response time was 226 ms and then it took 4.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

the-engineering-lab.com performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value4.1 s

78/100

10%

TBT (Total Blocking Time)

Value400 ms

68/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value9.6 s

29/100

10%

Network Requests Diagram

the-engineering-lab.com

226 ms

bootstrap.min.css

146 ms

jquery-3.2.1.min.js

18 ms

angular.min.js

284 ms

angular-file-saver.bundle.min.js

132 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 93% of them (83 requests) were addressed to the original The-engineering-lab.com, 2% (2 requests) were made to Google-analytics.com and 2% (2 requests) were made to I.imgur.com. The less responsive or slowest element that took the longest time to load (1 sec) belongs to the original domain The-engineering-lab.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.3 MB (30%)

Content Size

7.8 MB

After Optimization

5.5 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of The-engineering-lab.com main page is 7.8 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 7.4 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 134.3 kB

  • Original 155.7 kB
  • After minification 104.7 kB
  • After compression 21.4 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. This page needs HTML code to be minified as it can gain 51.0 kB, which is 33% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 134.3 kB or 86% of the original size.

Image Optimization

-29%

Potential reduce by 2.1 MB

  • Original 7.4 MB
  • After minification 5.3 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. Obviously, The Engineering Lab needs image optimization as it can save up to 2.1 MB or 29% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-30%

Potential reduce by 71.6 kB

  • Original 239.4 kB
  • After minification 239.4 kB
  • After compression 167.8 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 71.6 kB or 30% of the original size.

CSS Optimization

-0%

Potential reduce by 56 B

  • Original 19.7 kB
  • After minification 19.7 kB
  • After compression 19.7 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. The-engineering-lab.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (8%)

Requests Now

87

After Optimization

80

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of The Engineering Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

the-engineering-lab.com

the-engineering-lab.com

226 ms

bootstrap.min.css

bootstrap.min.css

146 ms

jquery-3.2.1.min.js

jquery-3.2.1.min.js

18 ms

angular.min.js

angular.min.js

284 ms

angular-file-saver.bundle.min.js

angular-file-saver.bundle.min.js

132 ms

jszip.js

jszip.js

298 ms

angular-animate.min.js

angular-animate.min.js

136 ms

ui-bootstrap.js

ui-bootstrap.js

311 ms

analytics.js

analytics.js

177 ms

nastran_sol_200_web_app_b.png

nastran_sol_200_web_app_b.png

307 ms

nastran_sol_200_web_app_sensitivity_plots.png

nastran_sol_200_web_app_sensitivity_plots.png

224 ms

reason_status.png

reason_status.png

181 ms

reason_entries.png

reason_entries.png

179 ms

reason_multi_model.png

reason_multi_model.png

179 ms

reason_web_browser_2.png

reason_web_browser_2.png

181 ms

reason_tutorials.png

reason_tutorials.png

306 ms

reason_price.png

reason_price.png

225 ms

nastran_sol_200_unconstrained_optimization.png

nastran_sol_200_unconstrained_optimization.png

622 ms

nastran_sol_200_constrained_optimization.png

nastran_sol_200_constrained_optimization.png

498 ms

nastran_sol_200_side_constraints.png

nastran_sol_200_side_constraints.png

417 ms

nastran_sol_200_best_compromise_infeasible_design.png

nastran_sol_200_best_compromise_infeasible_design.png

624 ms

nastran_sol_200_global_optimization.png

nastran_sol_200_global_optimization.png

419 ms

nastran_sol_200_topology_optimization.png

nastran_sol_200_topology_optimization.png

486 ms

nastran_sol_200_structural_optimization_of_a_3_bar_truss.png

nastran_sol_200_structural_optimization_of_a_3_bar_truss.png

483 ms

nastran_sol_200_sensitivity_analysis.png

nastran_sol_200_sensitivity_analysis.png

485 ms

nastran_sol_200_automated_structural_optimization_of_a_stiffened_plate.png

nastran_sol_200_automated_structural_optimization_of_a_stiffened_plate.png

555 ms

nastran_sol_200_optimization_vibration_of_a_cantilever_beam.png

nastran_sol_200_optimization_vibration_of_a_cantilever_beam.png

555 ms

nastran_sol_200_dynamic_response_optimization.png

nastran_sol_200_dynamic_response_optimization.png

554 ms

nastran_sol_200_dynamic_response_optimization_model_matching.png

nastran_sol_200_dynamic_response_optimization_model_matching.png

562 ms

nastran_sol_200_model_matching_system_identification_results_correlation.png

nastran_sol_200_model_matching_system_identification_results_correlation.png

625 ms

nastran_sol_200_composite_optimization.png

nastran_sol_200_composite_optimization.png

623 ms

nastran_sol_200_twenty_five_bar_truss_optimization.png

nastran_sol_200_twenty_five_bar_truss_optimization.png

622 ms

nastran_sol_200_acoustic_optimization.png

nastran_sol_200_acoustic_optimization.png

817 ms

nastran_sol_200_acoustic_optimization_beta.png

nastran_sol_200_acoustic_optimization_beta.png

1001 ms

nastran_sol_200_multiple_subcase_load_case_optimization_multi_discipline.png

nastran_sol_200_multiple_subcase_load_case_optimization_multi_discipline.png

687 ms

nastran_sol_200_buckling_optimization_cantilever_beam.png

nastran_sol_200_buckling_optimization_cantilever_beam.png

690 ms

nastran_sol_200_multi_model_optimization.png

nastran_sol_200_multi_model_optimization.png

690 ms

nastran_sol_200_topology_optimization_minimize_mass_displacement_stress_constraint.png

nastran_sol_200_topology_optimization_minimize_mass_displacement_stress_constraint.png

688 ms

nastran_sol_200_topology_optimization_casting_constraint.png

nastran_sol_200_topology_optimization_casting_constraint.png

752 ms

nastran_sol_200_topology_optimization_symmetry_constraints.png

nastran_sol_200_topology_optimization_symmetry_constraints.png

751 ms

nastran_sol_200_topology_optimization_mult_objective_optimization_multi_discipline_optimization.png

nastran_sol_200_topology_optimization_mult_objective_optimization_multi_discipline_optimization.png

819 ms

nastran_sol_200_topometry_optimization.png

nastran_sol_200_topometry_optimization.png

754 ms

nastran_sol_200_topometry_optimization_composite_panel.png

nastran_sol_200_topometry_optimization_composite_panel.png

815 ms

nastran_sol_200_topography_optimization_tutorial.png

nastran_sol_200_topography_optimization_tutorial.png

817 ms

hdf5-explorer-tutorial-2-a.png

hdf5-explorer-tutorial-2-a.png

772 ms

773cvzT.jpg

773cvzT.jpg

131 ms

1C7OKsT.png

1C7OKsT.png

44 ms

collect

collect

17 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

707 ms

tutorial_remote_execution.png

tutorial_remote_execution.png

706 ms

gp_d_response_surface_of_surrogate_model.png

gp_d_response_surface_of_surrogate_model.png

704 ms

nastran_machine_learning_of_a_10_bar_truss.png

nastran_machine_learning_of_a_10_bar_truss.png

736 ms

js

js

88 ms

ws_machine_learning_nlbk-cylinder2_reinforced.png

ws_machine_learning_nlbk-cylinder2_reinforced.png

695 ms

ws_parameter_study_frequency_response_sol_200.png

ws_parameter_study_frequency_response_sol_200.png

723 ms

ws_parameter_study_bd04bkt_bracket.png

ws_parameter_study_bd04bkt_bracket.png

644 ms

ws_parameter_study_bd04bkt_bracket_with_extra_support.png

ws_parameter_study_bd04bkt_bracket_with_extra_support.png

640 ms

ws_machine_learning_gaussian_process_regression.png

ws_machine_learning_gaussian_process_regression.png

533 ms

ws_parameter_study_dynamic_impact.png

ws_parameter_study_dynamic_impact.png

533 ms

ws_parameter_study_frequency_response_sol_111.png

ws_parameter_study_frequency_response_sol_111.png

528 ms

ws_parameter_study_linear_buckling.png

ws_parameter_study_linear_buckling.png

527 ms

ws_parameter_study_post_buckling.png

ws_parameter_study_post_buckling.png

528 ms

ws_pbmsect_introduction.png

ws_pbmsect_introduction.png

516 ms

ws_pbmsect_examples_of_arbitrary_beam_cross_sections.png

ws_pbmsect_examples_of_arbitrary_beam_cross_sections.png

462 ms

ws_pbmsect_composite_double_box_beam.png

ws_pbmsect_composite_double_box_beam.png

511 ms

ws_pbmsect_optimization.png

ws_pbmsect_optimization.png

520 ms

ws_composite_coupon_phase_a.png

ws_composite_coupon_phase_a.png

514 ms

ws_composite_coupon_phase_b.png

ws_composite_coupon_phase_b.png

456 ms

ws_composite_coupon_phase_c.png

ws_composite_coupon_phase_c.png

455 ms

ws_composite_coupon_phase_d.png

ws_composite_coupon_phase_d.png

458 ms

ws_composite_coupon_phase_e.png

ws_composite_coupon_phase_e.png

505 ms

ws_sandwich_composite_panel_phase_b.png

ws_sandwich_composite_panel_phase_b.png

514 ms

ws_sandwich_composite_panel_phase_c.png

ws_sandwich_composite_panel_phase_c.png

451 ms

ws_sandwich_composite_panel_phase_d.png

ws_sandwich_composite_panel_phase_d.png

452 ms

ws_shape_dsoug6.png

ws_shape_dsoug6.png

451 ms

ws_shape_steering_knuckle.png

ws_shape_steering_knuckle.png

456 ms

tut_post_processing_1.jpg

tut_post_processing_1.jpg

441 ms

tut_post_processing_2.jpg

tut_post_processing_2.jpg

450 ms

tut_post_processing_5.jpg

tut_post_processing_5.jpg

448 ms

tut_post_processing_8.jpg

tut_post_processing_8.jpg

388 ms

tut_post_processing_13.jpg

tut_post_processing_13.jpg

387 ms

tut_post_processing_14.jpg

tut_post_processing_14.jpg

393 ms

tut_post_processing_16.jpg

tut_post_processing_16.jpg

437 ms

tut_post_processing_17.jpg

tut_post_processing_17.jpg

448 ms

tut_post_processing_19.jpg

tut_post_processing_19.jpg

388 ms

tut_post_processing_sol_400_5.jpg

tut_post_processing_sol_400_5.jpg

387 ms

tut_post_processing_sol_400_33.jpg

tut_post_processing_sol_400_33.jpg

357 ms

tut_post_processing_sol_400_36.jpg

tut_post_processing_sol_400_36.jpg

361 ms

pres_shape_optimization_of_fea_models_by_machine_learning.png

pres_shape_optimization_of_fea_models_by_machine_learning.png

403 ms

Accessibility Review

the-engineering-lab.com accessibility score

83

Accessibility Issues

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.

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

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

the-engineering-lab.com best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

the-engineering-lab.com SEO score

82

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 The-engineering-lab.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 The-engineering-lab.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

the-engineering-lab.com

Open Graph description is not detected on the main page of The Engineering Lab. 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: