Tools & Wizards About Us
portofva.com screenshot

Report Summary

  • 89

    Performance

    Renders faster than
    90% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

portofva.com

Professional Manufacturers, China Quality Suppliers on portofva.com

Page Load Speed

1.6 sec in total

First Response

87 ms

Resources Loaded

1.2 sec

Page Rendered

273 ms

portofva.com screenshot

About Website

Welcome to portofva.com homepage info - get ready to check Portofva best content right away, or after learning these important things about portofva.com

Premier online B2B e-marketplace, provides China company directory & China product catalogs for Global buyers.

Visit portofva.com

Key Findings

We analyzed Portofva.com page load time and found that the first response time was 87 ms and then it took 1.5 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

portofva.com performance score

89

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value3.0 s

77/100

25%

SI (Speed Index)

Value2.8 s

96/100

10%

TBT (Total Blocking Time)

Value30 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.2 s

95/100

10%

Network Requests Diagram

portofva.com

87 ms

www.portofva.com

184 ms

common.css

208 ms

222 ms

cart-common.js

199 ms

Our browser made a total of 57 requests to load all elements on the main page. We found that 9% of them (5 requests) were addressed to the original Portofva.com, 79% (45 requests) were made to Img.portofva.com and 12% (7 requests) were made to Style.portofva.com. The less responsive or slowest element that took the longest time to load (680 ms) relates to the external source Img.portofva.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 146.2 kB (29%)

Content Size

507.7 kB

After Optimization

361.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Portofva.com main page is 507.7 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. 30% of websites need less resources to load. Images take 344.7 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 86.4 kB

  • Original 99.3 kB
  • After minification 80.2 kB
  • After compression 12.9 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 19.1 kB, which is 19% 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 86.4 kB or 87% of the original size.

Image Optimization

-11%

Potential reduce by 37.9 kB

  • Original 344.7 kB
  • After minification 306.8 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, Portofva needs image optimization as it can save up to 37.9 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-37%

Potential reduce by 7.2 kB

  • Original 19.5 kB
  • After minification 19.5 kB
  • After compression 12.3 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 7.2 kB or 37% of the original size.

CSS Optimization

-33%

Potential reduce by 14.5 kB

  • Original 44.1 kB
  • After minification 44.1 kB
  • After compression 29.6 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. Portofva.com needs all CSS files to be minified and compressed as it can save up to 14.5 kB or 33% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

50

After Optimization

50

  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Portofva. According to our analytics all requests are already optimized.

Network Requests Diagram

portofva.com

portofva.com

87 ms

www.portofva.com

www.portofva.com

184 ms

common.css

common.css

208 ms

222 ms

cart-common.js

cart-common.js

199 ms

74870.jpg

74870.jpg

115 ms

anaerobic_digestion_renewable_biogas_production_system_movable.jpg

anaerobic_digestion_renewable_biogas_production_system_movable.jpg

188 ms

home-sprite.png

home-sprite.png

45 ms

portofva.com.png

portofva.com.png

45 ms

24013.jpg

24013.jpg

151 ms

32444.jpg

32444.jpg

119 ms

glass_fused_to_steel_biogas_storage_tank_with_superior_corrosion_resistance_iso_9001_2008.jpg

glass_fused_to_steel_biogas_storage_tank_with_superior_corrosion_resistance_iso_9001_2008.jpg

172 ms

small_scale_bio_cng_plant_cost_biogas_power_generation.jpg

small_scale_bio_cng_plant_cost_biogas_power_generation.jpg

207 ms

juki_patch_machine_maintenance_oil_screw_slider_lubricant_juki_white_oil_black_field_seiko_c_grease_oil.jpg

juki_patch_machine_maintenance_oil_screw_slider_lubricant_juki_white_oil_black_field_seiko_c_grease_oil.jpg

199 ms

70000_gallons_glass_fused_to_steel_bolted_biogas_storage_tanks_with_double_membrane_roof.jpg

70000_gallons_glass_fused_to_steel_bolted_biogas_storage_tanks_with_double_membrane_roof.jpg

241 ms

anaerobic_digestion_ad_tanks_for_biogas_project_easy_to_clean.jpg

anaerobic_digestion_ad_tanks_for_biogas_project_easy_to_clean.jpg

583 ms

low_noise_internal_combustion_engine_biogas_generator.jpg

low_noise_internal_combustion_engine_biogas_generator.jpg

222 ms

biogas_storage_bolted_steel_tanks_for_anaerobic_digestion_system.jpg

biogas_storage_bolted_steel_tanks_for_anaerobic_digestion_system.jpg

231 ms

2_ton_combination_kit_chemically_active_environments_with_penetrating_lubricant.jpg

2_ton_combination_kit_chemically_active_environments_with_penetrating_lubricant.jpg

268 ms

anaerobic_process_and_equipment_for_landfill_leachate_treatment_project.jpg

anaerobic_process_and_equipment_for_landfill_leachate_treatment_project.jpg

269 ms

intelligent_enamel_assembled_tank_biogas_container_for_biogas_digester.jpg

intelligent_enamel_assembled_tank_biogas_container_for_biogas_digester.jpg

280 ms

100_cubic_meter_kitchen_kitchen_waste_gas_biogas_plant.jpg

100_cubic_meter_kitchen_kitchen_waste_gas_biogas_plant.jpg

289 ms

white_lube_multipurose_grease_w_ptfe_renolit_st80_especially_suitable_for_gt5250_gt7250_part_596500005.jpg

white_lube_multipurose_grease_w_ptfe_renolit_st80_especially_suitable_for_gt5250_gt7250_part_596500005.jpg

380 ms

mould_anti_rust_industrial_lubricants.jpg

mould_anti_rust_industrial_lubricants.jpg

335 ms

car_bike_industrial_lubrication_chain_and_gear_spray_lubricant_high_temperature_and_heavy_load.jpg

car_bike_industrial_lubrication_chain_and_gear_spray_lubricant_high_temperature_and_heavy_load.jpg

632 ms

sh117_over_wide_temperature_range_lubricating_grease_astm_d2265_dropping_point_apparatus.jpg

sh117_over_wide_temperature_range_lubricating_grease_astm_d2265_dropping_point_apparatus.jpg

359 ms

high_performance_winter_products_antifreeze_lubrication_radiator_coolant_for_car.jpg

high_performance_winter_products_antifreeze_lubrication_radiator_coolant_for_car.jpg

424 ms

china_biogas_expert_provide_biogas_plant_project_for_global_customers.jpg

china_biogas_expert_provide_biogas_plant_project_for_global_customers.jpg

384 ms

a_typical_biogas_plant_investment_cost_biogas_plant_project_cost.jpg

a_typical_biogas_plant_investment_cost_biogas_plant_project_cost.jpg

417 ms

glass_fused_to_steel_anaerobic_digestion_tank_for_generate_biogas.jpg

glass_fused_to_steel_anaerobic_digestion_tank_for_generate_biogas.jpg

425 ms

anaerobic_reactor_biogas_purification_equipment_in_biogas_plant_project.jpg

anaerobic_reactor_biogas_purification_equipment_in_biogas_plant_project.jpg

439 ms

black_yellow_20cm_bbq_flame_gun_grill_torch_charcoal_starter.jpg

black_yellow_20cm_bbq_flame_gun_grill_torch_charcoal_starter.jpg

594 ms

center_enamel_provides_farm_biogas_storage_tanks_with_customized_capacity.jpg

center_enamel_provides_farm_biogas_storage_tanks_with_customized_capacity.jpg

466 ms

automatic_control_biogas_gas_holder_with_anti_corrosion_materials.jpg

automatic_control_biogas_gas_holder_with_anti_corrosion_materials.jpg

459 ms

lightweight_biogas_electric_generator_for_agricultural_applications.jpg

lightweight_biogas_electric_generator_for_agricultural_applications.jpg

489 ms

astm_d1743_lubricating_grease_anti_corrosion_tester_sy5018b.jpg

astm_d1743_lubricating_grease_anti_corrosion_tester_sy5018b.jpg

517 ms

continuous_solid_waste_substitution_fuel_system_electric_multiscene.jpg

continuous_solid_waste_substitution_fuel_system_electric_multiscene.jpg

566 ms

ford_transit_medical_emergency_ambulance_white_4_2_diesel_oil.jpg

ford_transit_medical_emergency_ambulance_white_4_2_diesel_oil.jpg

591 ms

anaerobic_digestion_for_biogas_production_kitchen_waste_biogas_plant.jpg

anaerobic_digestion_for_biogas_production_kitchen_waste_biogas_plant.jpg

575 ms

standard_penetration_test_astmd217dynamic_grease_cone_penetrometer.jpg

standard_penetration_test_astmd217dynamic_grease_cone_penetrometer.jpg

617 ms

automatic_control_biogas_purification_equipment_advanced_filtration.jpg

automatic_control_biogas_purification_equipment_advanced_filtration.jpg

633 ms

food_waste_bio_methane_digester_ad_plant_cstr_bio_digester_system.jpg

food_waste_bio_methane_digester_ad_plant_cstr_bio_digester_system.jpg

633 ms

mini_biogas_anaerobic_digester_tank_glass_fused_to_steel_tank_for_gas_liquid_impermeable.jpg

mini_biogas_anaerobic_digester_tank_glass_fused_to_steel_tank_for_gas_liquid_impermeable.jpg

635 ms

gls_biogas_storage_tank_for_anaerobic_digestion_treatment_with_double_membrane_roof_or_enamel_roof.jpg

gls_biogas_storage_tank_for_anaerobic_digestion_treatment_with_double_membrane_roof_or_enamel_roof.jpg

642 ms

steel_biogas_purification_plant_ensuring_clean_and_reliable_industry_fuel.jpg

steel_biogas_purification_plant_ensuring_clean_and_reliable_industry_fuel.jpg

650 ms

portable_biogas_digester_biogas_plant_drawing_with_anaerobic_reactor.jpg

portable_biogas_digester_biogas_plant_drawing_with_anaerobic_reactor.jpg

680 ms

bg_x.gif

bg_x.gif

46 ms

removable_and_expandable_steel_biogas_storage_tank_for_biogas_digestion_process.jpg

removable_and_expandable_steel_biogas_storage_tank_for_biogas_digestion_process.jpg

511 ms

nanjing_stone_power_co_ltd.jpg

nanjing_stone_power_co_ltd.jpg

494 ms

shenzhen_cn_technology_co_ltd.jpg

shenzhen_cn_technology_co_ltd.jpg

473 ms

jiangsu_baoye_heavy_engineering_technology_co_ltd.jpg

jiangsu_baoye_heavy_engineering_technology_co_ltd.jpg

475 ms

shandong_shengtai_instrument_co_ltd.jpg

shandong_shengtai_instrument_co_ltd.jpg

467 ms

qingdao_jingcheng_weiye_environmental_protection_technology_co_ltd.jpg

qingdao_jingcheng_weiye_environmental_protection_technology_co_ltd.jpg

475 ms

shenzhen_i_like_fine_chemical_co_ltd.jpg

shenzhen_i_like_fine_chemical_co_ltd.jpg

468 ms

shijiazhuang_zhengzhong_technology_co_ltd.jpg

shijiazhuang_zhengzhong_technology_co_ltd.jpg

447 ms

changzhou_junhe_technology_stock_co_ltd.jpg

changzhou_junhe_technology_stock_co_ltd.jpg

447 ms

nophoto_small.gif

nophoto_small.gif

32 ms

Accessibility Review

portofva.com accessibility score

81

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

Links do not have a discernible name

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.

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

portofva.com 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

SEO Factors

portofva.com SEO score

92

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

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 Portofva.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 Portofva.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

portofva.com

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