Tools & Wizards About Us
resol.de screenshot

Report Summary

  • 49

    Performance

    Renders faster than
    67% of other websites

  • 70

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

resol.de

RESOL GmbH - Ihr kompetenter Partner für Solar- & Heizungsregelungen, Visualisierungen und vieles mehr

Page Load Speed

4.1 sec in total

First Response

328 ms

Resources Loaded

3.4 sec

Page Rendered

406 ms

resol.de screenshot

About Website

Welcome to resol.de homepage info - get ready to check RESOL best content for Serbia right away, or after learning these important things about resol.de

Die RESOL-Produktpalette umfasst ein Sortiment von hochwertigen Reglern für Solarthermie und Heizung sowie eine breite Palette an Zubehör für eine effiziente Energienutzung. Alle RESOL-Produkte sind z

Visit resol.de

Key Findings

We analyzed Resol.de page load time and found that the first response time was 328 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

resol.de performance score

49

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.6 s

100/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value4.5 s

72/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.218

57/100

15%

TTI (Time to Interactive)

Value6.2 s

62/100

10%

Network Requests Diagram

de

328 ms

cache.css

173 ms

cache_min.js

529 ms

cache_spry_min.js

180 ms

cache_spry_start.css

193 ms

Our browser made a total of 161 requests to load all elements on the main page. We found that 98% of them (157 requests) were addressed to the original Resol.de, 1% (2 requests) were made to Stats.g.doubleclick.net and 1% (1 request) were made to Stylesheets.resol.de. The less responsive or slowest element that took the longest time to load (662 ms) belongs to the original domain Resol.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 649.6 kB (55%)

Content Size

1.2 MB

After Optimization

524.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Resol.de main page is 1.2 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. 40% of websites need less resources to load. Javascripts take 534.5 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 137.8 kB

  • Original 151.5 kB
  • After minification 91.1 kB
  • After compression 13.7 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 60.4 kB, which is 40% 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 137.8 kB or 91% of the original size.

Image Optimization

-16%

Potential reduce by 66.7 kB

  • Original 428.3 kB
  • After minification 361.6 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, RESOL needs image optimization as it can save up to 66.7 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-74%

Potential reduce by 395.7 kB

  • Original 534.5 kB
  • After minification 461.8 kB
  • After compression 138.8 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 395.7 kB or 74% of the original size.

CSS Optimization

-82%

Potential reduce by 49.4 kB

  • Original 59.9 kB
  • After minification 47.9 kB
  • After compression 10.6 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. Resol.de needs all CSS files to be minified and compressed as it can save up to 49.4 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (14%)

Requests Now

156

After Optimization

134

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 156 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RESOL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

de

de

328 ms

cache.css

cache.css

173 ms

cache_min.js

cache_min.js

529 ms

cache_spry_min.js

cache_spry_min.js

180 ms

cache_spry_start.css

cache_spry_start.css

193 ms

jquery-1.10.1.min.js

jquery-1.10.1.min.js

294 ms

jquery.powertip.css

jquery.powertip.css

191 ms

jquery.powertip.min.js

jquery.powertip.min.js

191 ms

coin-slider.css

coin-slider.css

256 ms

wunschzettel.storage.js

wunschzettel.storage.js

257 ms

jquery.dropdown.css

jquery.dropdown.css

284 ms

jquery.dropdown.js

jquery.dropdown.js

284 ms

colorbox.css

colorbox.css

285 ms

jquery.colorbox.js

jquery.colorbox.js

341 ms

jquery.tabSlideOut.v1.3.js

jquery.tabSlideOut.v1.3.js

342 ms

i18next-1.6.3.js

i18next-1.6.3.js

473 ms

bootstrap-modal.min.css

bootstrap-modal.min.css

379 ms

bootstrap-modal.js

bootstrap-modal.js

379 ms

coin-slider.js

coin-slider.js

311 ms

dc.js

dc.js

36 ms

bg.jpg

bg.jpg

89 ms

flags_tr.png

flags_tr.png

310 ms

RESOL_Logo_de.png

RESOL_Logo_de.png

88 ms

facebook_sw.png

facebook_sw.png

100 ms

xing_sw.png

xing_sw.png

99 ms

linkedin_sw.png

linkedin_sw.png

96 ms

Calltoaction.png

Calltoaction.png

99 ms

slide_RESOL.jpg

slide_RESOL.jpg

258 ms

katalog_neu.png

katalog_neu.png

259 ms

de.png

de.png

191 ms

loading.gif

loading.gif

194 ms

kategorie_NEU_1.png

kategorie_NEU_1.png

194 ms

DeltaSolMiniPool_75x75.jpg

DeltaSolMiniPool_75x75.jpg

195 ms

DeltaSolPool_75x75.jpg

DeltaSolPool_75x75.jpg

286 ms

Solarregler_DeltaSolA_75x75.jpg

Solarregler_DeltaSolA_75x75.jpg

289 ms

Solarregler_DeltaSolAl_75x75.jpg

Solarregler_DeltaSolAl_75x75.jpg

288 ms

Solarregler_DeltaSolALEHE_75x75.jpg

Solarregler_DeltaSolALEHE_75x75.jpg

290 ms

Solarregler_DeltaSolBS_75x75.jpg

Solarregler_DeltaSolBS_75x75.jpg

343 ms

Solarregler_DeltaSolBS_Plus_75x75.jpg

Solarregler_DeltaSolBS_Plus_75x75.jpg

346 ms

Solarregler_DeltaSolBX_75x75.jpg

Solarregler_DeltaSolBX_75x75.jpg

381 ms

Solarregler_DeltaSolBX_L_75x75.jpg

Solarregler_DeltaSolBX_L_75x75.jpg

382 ms

Solarregler_DeltaSol_CS_75x75.jpg

Solarregler_DeltaSol_CS_75x75.jpg

384 ms

Solarregler_DeltaSol_CS_Plus_75x75.jpg

Solarregler_DeltaSol_CS_Plus_75x75.jpg

386 ms

Solarregler_DeltaSolES_75x75.jpg

Solarregler_DeltaSolES_75x75.jpg

429 ms

Solarregler_DeltaSol_SL_75x75.jpg

Solarregler_DeltaSol_SL_75x75.jpg

431 ms

Solarregler_DeltaSol_SLL_75x75.jpg

Solarregler_DeltaSol_SLL_75x75.jpg

474 ms

Solarregler_DeltaSolBX_Plus_75x75.jpg

Solarregler_DeltaSolBX_Plus_75x75.jpg

477 ms

Solarregler_DeltaSolE_75x75.jpg

Solarregler_DeltaSolE_75x75.jpg

479 ms

Solarregler_DeltaSolMX_75x75.jpg

Solarregler_DeltaSolMX_75x75.jpg

481 ms

Solarregler_DeltaSol_SLT_75x75.jpg

Solarregler_DeltaSol_SLT_75x75.jpg

514 ms

kategorie_NEU_9.png

kategorie_NEU_9.png

517 ms

Frischwasserregler_DeltaSol_Fresh_75x75.jpg

Frischwasserregler_DeltaSol_Fresh_75x75.jpg

568 ms

kategorie_NEU_8.png

kategorie_NEU_8.png

571 ms

DeltaTherm_FK_75x75.jpg

DeltaTherm_FK_75x75.jpg

573 ms

DeltaTherm_HC_75x75.jpg

DeltaTherm_HC_75x75.jpg

575 ms

DeltaTherm_HC_Mini_75x75.jpg

DeltaTherm_HC_Mini_75x75.jpg

599 ms

kategorie_NEU_2.png

kategorie_NEU_2.png

604 ms

__utm.gif

__utm.gif

29 ms

translation.json

translation.json

583 ms

translation.json

translation.json

585 ms

AM1_75x75.jpg

AM1_75x75.jpg

583 ms

DL2_75x75.jpg

DL2_75x75.jpg

581 ms

DL3_75x75.jpg

DL3_75x75.jpg

593 ms

GA3_NEU_75x75.jpg

GA3_NEU_75x75.jpg

596 ms

KM1_75x75.jpg

KM1_75x75.jpg

571 ms

Parametrisierungstool_RPT_75x75.jpg

Parametrisierungstool_RPT_75x75.jpg

572 ms

STA-W_75x75.jpg

STA-W_75x75.jpg

573 ms

VBus2LAN_75x75.jpg

VBus2LAN_75x75.jpg

577 ms

VBus2PWM_75x75.jpg

VBus2PWM_75x75.jpg

521 ms

VBus2USB_75x75.jpg

VBus2USB_75x75.jpg

524 ms

RESOL_Service_Software_RSC_75x75.jpg

RESOL_Service_Software_RSC_75x75.jpg

572 ms

SD3_75x75.jpg

SD3_75x75.jpg

572 ms

SDFK_75x75.jpg

SDFK_75x75.jpg

574 ms

VBus.net_75x75.jpg

VBus.net_75x75.jpg

578 ms

VBusRepeater_75x75.jpg

VBusRepeater_75x75.jpg

520 ms

VBusTouch_75x75.jpg

VBusTouch_75x75.jpg

524 ms

VBusTouch_FK_75x75.jpg

VBusTouch_FK_75x75.jpg

573 ms

VBusTouch_HC_75x75.jpg

VBusTouch_HC_75x75.jpg

572 ms

VBusTouch_Trainer_75x75.jpg

VBusTouch_Trainer_75x75.jpg

573 ms

kategorie_NEU_3.png

kategorie_NEU_3.png

563 ms

Ablaufschlauch_ALS15_75x75.jpg

Ablaufschlauch_ALS15_75x75.jpg

533 ms

Adg_75x75.jpg

Adg_75x75.jpg

523 ms

HuIPumpe_75x75.jpg

HuIPumpe_75x75.jpg

564 ms

Loetnippel_75x75.jpg

Loetnippel_75x75.jpg

571 ms

Lufttopf_LT20_75x75.jpg

Lufttopf_LT20_75x75.jpg

573 ms

Schmutzfaenger_75x75.jpg

Schmutzfaenger_75x75.jpg

562 ms

Klemmringverschr_75x75.jpg

Klemmringverschr_75x75.jpg

538 ms

Doppelnippel_75x75.jpg

Doppelnippel_75x75.jpg

540 ms

Solarstation_FlowSol_B_75x75.jpg

Solarstation_FlowSol_B_75x75.jpg

554 ms

Solarstation_FlowSol_S_75x75.jpg

Solarstation_FlowSol_S_75x75.jpg

558 ms

Solarstation_FlowSol_XL_75x75.jpg

Solarstation_FlowSol_XL_75x75.jpg

568 ms

Spuefue_75x75.jpg

Spuefue_75x75.jpg

570 ms

St%C3%BCtzhuelse_75x75.jpg

St%C3%BCtzhuelse_75x75.jpg

546 ms

Volumenstromanzeige_VM1020_75x75.jpg

Volumenstromanzeige_VM1020_75x75.jpg

548 ms

No_Pic_75x75.jpg

No_Pic_75x75.jpg

545 ms

kategorie_NEU_10.png

kategorie_NEU_10.png

543 ms

HE_Check_75x75.jpg

HE_Check_75x75.jpg

561 ms

Kugelhahn_SBS2000_75x75.jpg

Kugelhahn_SBS2000_75x75.jpg

565 ms

Pruefbox_75x75.jpg

Pruefbox_75x75.jpg

555 ms

PSW_Basic_75x75.jpg

PSW_Basic_75x75.jpg

559 ms

PSW_Premium_75x75.jpg

PSW_Premium_75x75.jpg

537 ms

PSW_Premium_Set_75x75.jpg

PSW_Premium_Set_75x75.jpg

543 ms

PSW_Universal_75x75.jpg

PSW_Universal_75x75.jpg

568 ms

Refraktometer2015_75x75.jpg

Refraktometer2015_75x75.jpg

568 ms

Refraktometer_75x75.jpg

Refraktometer_75x75.jpg

563 ms

Spuelstation_SBS2000_75x75.jpg

Spuelstation_SBS2000_75x75.jpg

568 ms

Verlaengerungskabel_SBS2000_75x75.jpg

Verlaengerungskabel_SBS2000_75x75.jpg

529 ms

Tyfocor_75x75.jpg

Tyfocor_75x75.jpg

535 ms

kategorie_NEU_4.png

kategorie_NEU_4.png

567 ms

Temperaturfuehler_75x75.jpg

Temperaturfuehler_75x75.jpg

571 ms

RCTT_75x75.jpg

RCTT_75x75.jpg

569 ms

FS08_75x75.jpg

FS08_75x75.jpg

578 ms

TT1_75x75.jpg

TT1_75x75.jpg

522 ms

TT2_75x75.jpg

TT2_75x75.jpg

528 ms

V40_75x75.jpg

V40_75x75.jpg

570 ms

WMZ_75x75.jpg

WMZ_75x75.jpg

572 ms

WMZ_G1_75x75.jpg

WMZ_G1_75x75.jpg

574 ms

EC1_75x75.jpg

EC1_75x75.jpg

580 ms

kategorie_NEU_5.png

kategorie_NEU_5.png

520 ms

Mica_75x75.jpg

Mica_75x75.jpg

524 ms

FKP8_75x75.jpg

FKP8_75x75.jpg

572 ms

Globalstrahlungssensor_75x75.jpg

Globalstrahlungssensor_75x75.jpg

572 ms

FKP6hochtemp_75x75.jpg

FKP6hochtemp_75x75.jpg

574 ms

Komplettfuehler_75x75.jpg

Komplettfuehler_75x75.jpg

579 ms

FRP12_75x75.jpg

FRP12_75x75.jpg

520 ms

Rohranlegefuehler_75x75.jpg

Rohranlegefuehler_75x75.jpg

523 ms

Adapterkabel_Feststoffkesselregler_75x75.jpg

Adapterkabel_Feststoffkesselregler_75x75.jpg

572 ms

Sensorverl%C3%A4ngerungsleitung_75x75.jpg

Sensorverl%C3%A4ngerungsleitung_75x75.jpg

572 ms

SV6_75x75.jpg

SV6_75x75.jpg

573 ms

Cs10_75x75.jpg

Cs10_75x75.jpg

579 ms

TH100_75x75.jpg

TH100_75x75.jpg

520 ms

TS10_75x75.jpg

TS10_75x75.jpg

523 ms

T22_75x75.jpg

T22_75x75.jpg

572 ms

FKP6_75x75.jpg

FKP6_75x75.jpg

571 ms

Grundfos_Direct_Sensors_75x75.jpg

Grundfos_Direct_Sensors_75x75.jpg

574 ms

kategorie_NEU_6.png

kategorie_NEU_6.png

565 ms

ARA661_75x75.jpg

ARA661_75x75.jpg

532 ms

Euromischer_75x75.jpg

Euromischer_75x75.jpg

523 ms

VA20_75x75.jpg

VA20_75x75.jpg

572 ms

VA22_75x75.jpg

VA22_75x75.jpg

571 ms

Stellantrieb_75x75.jpg

Stellantrieb_75x75.jpg

573 ms

MA10_75x75.jpg

MA10_75x75.jpg

557 ms

VA32_75x75.jpg

VA32_75x75.jpg

531 ms

VA300_75x75.jpg

VA300_75x75.jpg

534 ms

kategorie_NEU_7.png

kategorie_NEU_7.png

563 ms

EM_Erweiterungsmodul_75x75.jpg

EM_Erweiterungsmodul_75x75.jpg

569 ms

Ersatzsicherungsset4_75x75.jpg

Ersatzsicherungsset4_75x75.jpg

570 ms

EM-HP_75x75.jpg

EM-HP_75x75.jpg

563 ms

RTA12_75x75.jpg

RTA12_75x75.jpg

531 ms

Feuchtraumgehaeuse_75x75.jpg

Feuchtraumgehaeuse_75x75.jpg

544 ms

Heizkreismodul_HKM3_75x75.jpg

Heizkreismodul_HKM3_75x75.jpg

556 ms

HRG230_75x75.jpg

HRG230_75x75.jpg

568 ms

RCP12_75x75.jpg

RCP12_75x75.jpg

559 ms

Waermeleitpaste_75x75.jpg

Waermeleitpaste_75x75.jpg

557 ms

bg_rob.jpg

bg_rob.jpg

545 ms

nav-current.jpg

nav-current.jpg

552 ms

scroller_handle.png

scroller_handle.png

545 ms

content-bg.jpg

content-bg.jpg

553 ms

MX_2.0_Startseite_de.jpg

MX_2.0_Startseite_de.jpg

662 ms

katalog_de.png

katalog_de.png

557 ms

overlay.png

overlay.png

555 ms

Accessibility Review

resol.de accessibility score

70

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

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

Form elements do not have associated labels

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.

Best Practices

resol.de 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

resol.de 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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Resol.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it matches the claimed language. Our system also found out that Resol.de 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

resol.de

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