Gtmetrixemplois
Bonjour, je suis à la recherche d'un développeur wordpress expérimenté. Une grosse partie concerne une optimisation profonde du site. Fluidité, vitesse de chargement. Le site est à amélioré en fonctions de l'outil Gtmetrix par les fichiers ftp. L'optimisation se fera sans extensions tierces. Dans un second temps, améliorez l'expérience utilisateur. - Ajouter des filtres produits - Modifier les styles menus (php, JavaScript) - Ajouter des bandeaux sur les produits en rupture de stock. - Créer des extensions propres à son site. Les autres demandes seront détaillées dans le cahier des charges. Ensuite, il faut repenser l’utilisation sur mobile, une très...
Je cherche à fai...client/paiement en accord avec la nouvelle charte graphique en vu de la création d’une identité propre. (Je peux fournir un thème de départ pour faciliter la démarche) - Mise en place des maquettes sur le site et importation catalogue produit/commandes/clients - Réinstallation et configuration de modules prédéfinis à l’avance. - Optimisation performances vitesse/loading time (critères pagespeed google et gtmetrix) - Maintenance annuelle du site (Bugs/améliorations/vitesse) - (optionnel) audit et optimisation SEO Pour toutes les rubriques contenant du ou des textes le contenu sera transmis pour mise en page. Question annexe : si l'on procède ainsi tou...
Bonjour, Voici les sites concurrents de mon activité : - -... - Mon projet est d'optimiser et d'accélérer les pages web du site suivant donc : Voici les outils en ligne qui doivent montrer des améliorations réelles et significatives sur tous les paramètres : GTmetrix Merci de votre retour pour validation de vos compétences en accord avec ces différents points ainsi que le devis nécessaire pour ce travail d'optimisation. Bien cordialement, Arnaud Laizé
Expert au niveau sur Prestashop Amélioration de la vitesse de chargement du prestashop et des modules en lien avec gtmetrix et google page speed. Création complète et mise en place des modules d'un theme prestashop. Mise à jour des versions prestashop en apportant les corrections de bug éventuels.
Nous recherchons un expert SEO afin de référencer notre site internet en premiére page (top 3) de Google sur des mots clefs français (déjà identifiés), pour notre agence immobilière basée à Bangkok, Thaïlande. Référencement organique. Notre site internet: Nou...d'optimisations SEO et de les mettre en place. - Définir une stratégie globale court et long terme dans une optique d'améliorer le SEO - Mettre en place un plan d'action - L'appliquer et suivre les résultats - Mise à jour du plan d'action en fonction des critères de référencement de Google Connaissances demandées: - Expertise SEO - Backlink - O...
We have a few small issues with our website loading files that require offserver connections. Please see gtMetrix report attached
...project of building 250 backlinks per month. Hence, I am looking for someone with the professional skills and ability to meet the needed deadlines. If this project appeals to you, then let's discuss it further and get started on improving the SEO of my website! Please take some time to understand some of our expectations of the project. 1. To solve SEO Onpage, please document how to fix the GTMetrix grade, the current grading is dropped automatically every month. 2. Onpage & Offpage Optimisation, You will need to submit a full audit report for before and after on-page. Meta Description needs approve before starting off page. 3. Preferred Singapore backlink. Suggestion backlink provided as attached. This is a must. 4. Email address for backlink account registration ...
I am looking for a skilled developer to optimize my WordPress website's performance, specifically focusing on improving the page load time. Skills and Experience: - Strong knowledge and experience in WordPress optimization techniques - Familiarity with various tools and plugins for website optimization - Ability to analyze and identify areas for improvement in Gtmetrix KPIs - Experience in improving website performance for above-average performance levels Please provide examples of previous projects where you have successfully optimized website performance.
...of medical services 2. Achieve a Google Lighthouse performance score of 95+ for all critical workflows (e.g., appointment booking, video consultation interfaces) Skill Requirements 1. Strong proficiency in ASP .NET Core and C# 2. Experience with MSSQL and .NET Framework 4.6 3. Expertise in web performance optimization 4. Familiarity with performance monitoring tools like Google Lighthouse or GTmetrix Website:
Help me to solve the attached issue via anydesk or guide, no login will provide you I will pay you for that
I am looking for a professional who can improve the performance of my website on Wordpress/Woocommerce. The specific issue I am experiencing is slow page loading times, which has resulted in a poor user experience. We need full optimisation of front and backend. Attached you can see the gtmetrix report as it is today. We have installed W3 Total Cache plugin but it's not efficient as it is. Either you configure this plugin to optimize, or you use the technique of your choice, all we need is result. We can give you Wordpress Bakend and FTP. ASAP Start.
...de la empresa y en consecuencia cambia el dominio -Si el freelancer tiene la posibilidad puede proponer textos nuevos o generarlos con IA, caso contrario que lo comunique y yo me encargaré del texto. -Configurar correctamente el theme, que todo quede funcionando correctamente. -Hacer las pruebas y puesta al aire del website. El website debe obtener muy buenas calificaciones en GooglePageSpeed y GTmetrix. El entregable del proyecto es la puesta al aire del website del cliente; que los botones, formularios, funcionalidades y demás componentes queden funcionando correctamente al 100%. No habrán pagos parciales, ni por avances, ni por el esfuerzo invertido si el website no queda completamente terminado. El proyecto se pagará con 1 solo hito por el 100% d...
Hi there, ★★★ Wordpress / WooCommerce/ PHP Expert ★★★ 6+ Years of Experience ★★★ ★★★ Building Scratch OR On Top Page Builder Like: Elementor/ Divi/ Beaver/ VC ★★★ ★★★ 90+ Speed Score Optimization on Google PageSpeed/GTmetrix/ ★★★ ★★★ WordPress migration | Hosting and Manage cPanel | Hosting Services ★★★ ★★★ WordPress Website Technical SEO and On Page SEO ★★★ ★★★ Making Sure WordPress Website 100% Security ★★★ I've read requirements and am ready to build Modern Design & Mobile First Responsive Website using WordPress. Websites we built with WordPress: ✔ ✔ ✔ ✔ ✔ ✔ ✔ ✔
...Speed, Speed, Speed. If it's not fast, no use to re-design anything. You will have to build the site with speed in mind every step of the way, test and retest speed as you build it in a Lightweight WordPress Theme. Every image, every link, everything has to be so it does not slow down the website. Site has to deliver 100 out of 100 in score on Google page speed on mobile and desktop and on gtmetrix. 2. Re - design with a brand new logo and website that inspires trust. The site has to look professional and inspire trust all the way. Look for example at: mayoclinic 3. Think Mobile-First. 80% of our patients use mobile. It has to be responsive design. Mobile website has to be easy to use and navigate inn and userfriendly. 4. We do not need to build in any registrat...
...que lo comunique y yo me encargaré del texto. -Se debe buscar fotografías de stock (gratuitas o pagadas) que sean las adecuadas para el diseño gráfico propuesto. Yo compro las fotos que hagan falta. -Configurar correctamente el theme, que todo quede funcionando correctamente. -Hacer las pruebas y puesta al aire del website. El website debe obtener muy buenas calificaciones en GooglePageSpeed y GTmetrix. El entregable del proyecto es la puesta al aire del website del cliente; que los botones, formularios, funcionalidades y demás componentes queden funcionando correctamente al 100%. No habrán pagos parciales, ni por avances, ni por el esfuerzo invertido si el website no queda completamente terminado. El proyecto se pagará con 1 sol...
We are looking for a web development Expert to optimize the speed of the website on GTMetrix, PageSpeed Insights, Pingdom Tools etc. The website is built on VPS ~ Cyberpanel ~ WordPress
...Current Load Time: More than 5 seconds Specific Pages/Elements: Possibly, but I am not sure which ones are causing the slow load time. Speed Target: I would like my website to load in 1-2 seconds. Ideal Skills and Experience: - Strong experience in optimizing WordPress websites for speed - In-depth knowledge of website performance optimization techniques - Familiarity with tools such as GTmetrix, Google PageSpeed Insights, and Pingdom for performance testing and analysis - Ability to identify and resolve issues that are causing slow load times - Proficiency in optimizing images, CSS, JavaScript, and database queries - Expertise in caching techniques and plugins for improved performance - Understanding of server configurations and hosting environments that can impact website...
We are looking for a web development Expert to optimize the speed of the website on GTMetrix and others. The website is built on VPS ~ Cyberpanel ~ WordPress
...project of building 250 backlinks per month. Hence, I am looking for someone with the professional skills and ability to meet the needed deadlines. If this project appeals to you, then let's discuss it further and get started on improving the SEO of my website! Please take some time to understand some of our expectations of the project. 1. To solve SEO Onpage, please document how to fix the GTMetrix grade, the current grading is dropped automatically every month. 2. Onpage & Offpage Optimisation, You will need to submit a full audit report for before and after on-page. Meta Description needs approve before starting off page. 3. Preferred Singapore backlink. Suggestion backlink provided as attached 4. Email address for backlink account registration will be provided, ...
...delivery, Delay JS, LazyLoad images and replace YT with thumbnails, enable link preloading. Cost = $75/year Install Imagify (Free - $10 / month) and bulk optimize all of the images in your Media Library and Theme (note review images for quality afterwards and make adjustments as needed - no need for WebP images standard compression will work great in most cases). Cost = $0, $60, $120/year Go to GTMetrix and run a Legacy Report, find any DNS entries that are coming from third-party plugins/software. Add these to the DNS Prefetch section of WP Rocket. Install Docket Cache plugin and optimize (or if your hosting has Redis use the WP Redis plugin, read more about Object Caching here: ). Cost = Free Install Asset Cleanup (free) or Asset Cleanup
1. Existing installation with several APIs (approx 100-150 standard and bespoke and some adjusted standard) Issues when upgrading to 2.4.6 in the 2.4.6 that must be resolved: Please see attached list of issues 2. Performance work to be done since the performance is on grde F at gtmetrix. Optimisation means (not less): a. code optimisation b. varnis cache connection c. make cache warming script for cron job d. cloudflare connection Skills Required
...have: - Strong experience in optimizing WordPress websites for speed and performance - Expertise in identifying and resolving performance issues, such as slow page load times and server response times - Knowledge of best practices for optimizing website speed, including caching, image optimization, and minification of CSS and JavaScript files - Familiarity with performance testing tools, such as GTmetrix or Pingdom, to measure and analyze website performance - Understanding of user experience principles and the ability to implement improvements that will enhance the overall user experience - Familiarity with SEO best practices and how website speed impacts SEO ranking is a plus If you have a proven track record of optimizing WordPress websites for speed and performance, and are ...
We have a magneto site that is almost completed. It has only a few issues that need to be corrected. In short- please assume this i...completed CVS ready for upload. It may need minor tweaks. Make sure the dropdown box on homepage sorts this properly. 2- Fix site load speed. It is very slow right now to load the site and load the product dropdown search bar. 3 - Fix a few product images. The images show properly when accessed directly but Magento shows them blurry. These are good quality pics. 4- Also speed up site based on GTmetrix/Google lighthouse recommendations. 5- Enable Stripe payment gateway. 6- Add/fix anything else on the product page that needs fixing. Polish it and get it out the door for deployment. Please apply if you have Magento experience and can finish this task...
Hi, I'm looking for a team of WP Elementor experts to help me with few upcoming projects. Work can be ongoing for the right team. Most of the requirements are basic websites with the following structure. Sitemap: 1. Homepage 2. About 3. Services 4. Contact 5. Blog 6. Single Post Use of Elementor's awesome capabilities is a must. The website need to pass basic GTmetrix standards. *** Apply with your work you have done previously with Elementor plugin and a rough estimate of how much a website will approximately cost. All generic quotes without proof of work with Elementor will be ignored. Mention the word "magic" in your proposal. This is to check if you have read all the instructions properly!
We have Joomla 3 website. It has a good score and speed but it should be fixed that on gtmetrix it had a score of B (now is C with 75%) and on Google speed test some things should be fixed as well so that score on mobile is more than 70% for performances and some minor things on the desktop version. We have set up the JCH pro plugin. We will provide you with explanation and print screens of current scores
I am looking for an experienced professional who can help me optimize my website's performance by fixing the slow loading times caused by an issue with my CDN configuration. Speed increases after I configure CDN but my website gets issues on admin panel and functionality breaks- Main Issue: - Slow loading times , CDN configuration CDN Provider: - Cloudflare Previous Solutions Tried: - Yes, but they didn't work Ideal Skills and Experience: - Extensive knowledge and experience in optimizing website performance - Proficiency in CDN configuration, specifically with Cloudflare - Understanding of troubleshooting and resolving slow loading times - Strong problem-solving skills - Excellent communication and collaboration abilities If you have the expertise and skills req...
Hi I'm looking for help optimising the speed on my Wordpress site. Google Pagespeed insights 90+ and GTmetrix Score 85+ Desktop and 75+ Mobile and loading time 1-3sec I have WP-rocket and SMUSH. Current score is C in GTmetrix. I need to know the methods you do, incase I update the site. Only reply with *SPEED* Thanks Dan
...js developer to build a high-performance website that requires an A rating on GTmetrix.com. The successful candidate must be skilled in creating intuitive, responsive, and speedy websites with no need for eCommerce plugins. Primary responsibilities: Create a user-friendly and responsive Vue.js website. Ensure the website performs highly across all devices, consistently achieving an A rating on GTmetrix. Develop clean, efficient, maintainable, and reusable code following best practices. Implement strong security measures to safeguard the website from potential risks. Conduct thorough testing and resolve any performance-related issues. Collaborate effectively with project stakeholder to gather requirements and provide updates. Please refer to the attached document for a more detail...
We want to improve WordPress + woocommerce site performance we attach a text card with GT Matrix We need to reach at minimum a "B" at Gtmetrix plugins optimization/caching are already rpesent, plus the site is cnnected with cloudflare and use Litespeed cache, so we believe that the problem is to be found in other areas, for example: - links that are no longer active within the code -duplication of requests relating to database query problems (for example, two identical plugins appear in the plugin list ( affiliateWp) -orphan objects From the test, in the Waterfall section, it also emerges that used to manage chat bots slow down the user experience heavily, but (from our tests) even without the chat bot the problem of the slowness continuing to exist. Also backend side
Hola necesito cotizar la mejora visual y de carga de la WEB, la información es la actual pero necesitamos mejorar la visual y la carga de la web. Hoy tiene valores buenos ne gtmetrix pero sigue siendo muy lenta. Realizar en wordpress con elementor actualmente.
...attachments Overview: I am looking for a skilled developer to fix the slow loading speed of my website. The goal is to improve the overall performance and enhance user experience. Requirements: - Experience in website speed optimization techniques, including caching, image optimization, and code minification - Proficient in analyzing website performance using tools like Google PageSpeed Insights or GTmetrix - Familiarity with HTML, CSS, JavaScript, and server-side technologies - Ability to work with existing code base and make necessary modifications for performance improvements Specific Tasks: 1. Identify and resolve performance bottlenecks causing slow loading speed 2. Optimize code and reduce file sizes to improve page load times 3. Implement caching mechanisms to enhance...
As discussed, On-Page Optimization work includes: > Title Tag / Meta Tag Optimization (main pages) > Image Optimization > Sitemap Creation to Google and Yahoo > validation > Google Analytics Set Up > Webmaster Verification to Google > 301 redirection > Optimize Keywords in Heading Tags (H1 & H2) > Anchor Text Optimization > Emphasize Your Target Keywords (Bol...includes: > Title Tag / Meta Tag Optimization (main pages) > Image Optimization > Sitemap Creation to Google and Yahoo > validation > Google Analytics Set Up > Webmaster Verification to Google > 301 redirection > Optimize Keywords in Heading Tags (H1 & H2) > Anchor Text Optimization > Emphasize Your Target Keywords (Bolding, Italicizing, and underlining) > Can...
I need a wordpress speed optimization guru to help me perfomance update the website. I consider my self an performance optimization expert so i know how the work should be done. Therefor when you bid, i will interview you and see if you are the right match. If you dont bot...answer my questions, please dont bid. The requirements as as follows: 1) Refactor website for CSS codes where its required to make it load faster 2) Enable debug true and fix all errors (if any) 3) pagespeed must be 90% in desktop and 80% in mobile 4) First Contentful Paint, Total Blocking Time, Speed Index, Largest Contentful Paint and Cumulative Layout Shift - all green in both mobile and PC 5) Gtmetrix grade from D to A+ 6) Load time below 3 seconds. Other suggestions you have to give before starting the...
I am looking for a skilled developer to improve the loading speed of my existing WordPress website. Requirements: - Experience in optimizing website loading speed - Kn...speed Tasks: - Minify HTML, CSS, and JavaScript files to reduce their size - Optimize the website to load within 2 seconds or less - Ensure that all website elements are properly optimized for fast loading Skills and Experience: - Proficiency in WordPress development - Strong understanding of website performance optimization techniques - Familiarity with tools such as PageSpeed Insights and GTmetrix for performance testing - Experience with caching plugins and server-side optimization If you have the skills and experience required to improve the loading speed of my existing WordPress website, please submit your...
Project Description: Optimize WordPress Blog for I...HTTP requests and improve overall loading speed. Ideal Skills and Experience: - Strong expertise in WordPress development and optimization techniques. - In-depth knowledge of website performance optimization, including caching, image optimization, and code minification. - Proficiency in implementing and configuring WordPress plugins for performance improvements. - Familiarity with tools like GTmetrix, Pingdom, and Google PageSpeed Insights to analyze and measure website speed. - Proven track record of optimizing WordPress websites and achieving high-speed scores. If you have the skills and experience required to optimize our WordPress blog and achieve an "A" speed score, please submit your proposal along with relevant...
Busco dev experiente em NextJS para criar uma onepage responsiva com foco em alto desempenho, excelente documentação e código limpo. Trabalho "simples" sem complexidade, onde a maioria dos componentes se repetem. Na pagina tem uma tela chamada ( Catalogador ) que vai se conectar com uma API que já esta pronta e documentada. O projeto terá continuidade após a conclusão da primeir...das páginas. Integração segura e funcional da API, garantindo o correto funcionamento de todas as funcionalidades. Criação de código limpo e bem documentado para facilitar futuras manutenções e atualizações. Compartilhamento na vercel para acompanhamento do desenvolvimento. Ap&oacut...
I am looking for a skilled developer to improve the speed of my website and increase its GTMetrix score. GTMetrix Score: Below 50 GRADE F Ideal Skills and Experience: - Strong knowledge of website optimization techniques and best practices - Experience in optimizing images to reduce file size without compromising quality - Proficiency in caching code to improve website performance - Familiarity with GTMetrix and its metrics - Ability to analyze and diagnose performance issues - Expertise in implementing solutions to improve website speed and performance We are looking for the site score to be improved without effecting any of the current features or usability of the site. If something stops working it needs to be fixed etc. Thank you
...project of building 250 backlinks per month. Hence, I am looking for someone with the professional skills and ability to meet the needed deadlines. If this project appeals to you, then let's discuss it further and get started on improving the SEO of my website! Please take some time to understand some of our expectations of the project. 1. To solve SEO Onpage, please document how to fix the GTMetrix grade, the current grading is dropped automatically every month. 2. Onpage & Offpage Optimisation, You will need to submit a full audit report for before and after on-page. Meta Description needs approve before starting off page. 3. Preferred Singapore backlink. Suggestion backlink provided as attached 4. Email address for backlink account registration will be provided, ...
I have a Joomla 3.10.12 site which needs updating to 4.x It currently has one bug with a homepage image slider that will also need fixing. Some notes - The site is multilingual, translations where they appear must remain - You must be familair with all forms of caching. - The site will be tested against gtmetrix at the end of the update, it currently scores 98% , I will accept over 94% with the caching reenabled. - In some areas custom code has been implemented for China, to replace YouTube links with Chinese links, these must remain working. -You will have acces to cpanel Project will start in two days once I have set up a dev enviroment. I will be using milestones, and sticking to them. Must include the word, wibbe, in your response to demonstate that you have read this desc...
Shopify speed optimization / increase score on shopify, gtmetrix and google page speed.
...around 3-5 seconds to load, and I would like to reduce this to less than a second. Your results will be tested against GTmetrix Skills and experience required: - Strong knowledge of WordPress and website optimization techniques - Proficiency in identifying and resolving render blocking resources and long main-thread tasks - Experience in optimising website speed and performance - Ability to analyse website performance metrics and implement necessary improvements - Familiarity with caching mechanisms and content delivery networks (CDNs) - Understanding of best practices for optimising images, scripts, and CSS - Knowledge of tools such as Google PageSpeed Insights and GTmetrix to analyse and measure website performance If you have a track record of successfully impro...
Hi, I am looking for developer that can help me optimizing a WordPress site, with GTMetrix at least grade B and above. And for this job, I need some reference sites for proven records in GTMetrix. So please bid if you can share your sites with me. Thanks.
# Tracker Status Subject 27 Bug ToDo My Reviews and Wishlist: Price and image path, Add Price, Imagepath and VIP points. Code can be copied form other APIs. 21 Bug ToDo Move Magento 2.4.5 to live server after testing it, I do moste, ytou make sure all amendments 20 Bug ToDo Optimise speed on wewbsite, Use Gtmetrix, Rated F for now, must be B at least 3 Bug ToDo Looks page the background images(simply change some images in a block) Time: this takes about 1 week to do. Do not come up with excessive timelines. Your skills - Magento 2.4.3 p1/2.4.5/2.4.6 - Amend APIs with additional response
Necesito optimizar la carga de una página web, debe cargar dentro de los mejores parametros de gtmetrix y pagespeed. Tambien necesitamos el servicio de SEO
1. To optimise website speed, please document how to fix GTMetrix grade, currently grade E. 2. Do not affect re-captcha plug in, must ensure re-captcha is working ( please suggest if you have better plug in to replace reptcha if needed. 3. Already installed WP rocket which clash with re-captcha. requirement - GTMetrix grading at A or B. 5- Please reply how long to fix this. 6- Please fix the following from ERROR from semrush report - No redirect or canonical to HTTPS homepage from HTTP version - 1 page ( refer attached for the report ) - 20 pages couldn't be crawled - 20 page ( refer attached for the report )
Hello All Budget for this is strictly US$ 70.00 Apply only if you are comfortable. We are lubricants exporting company. I need a website for our company and showcase our products. Attached is the Logo. I need to mak...cracked. 100% genuine legal and free. 3. I need sticky menu, and menus will About Us, Our Products, contact us 4. You need to take all the data and content from various other sites which I can give for reference. 5. Website must be 100% Responsive 6. Website must be 100% SEO friendly. I will check the score from multiple sources and local plugins. 7. Once the website is up it must have GTMetrix score A+ both on Desktop and Mobile Please note, if any of the above is not met, then project will not be accepted not matter how much effort ot time you might have ...
Kindly refer to below for our expectations:- 1. To solve SEO Onpage, please document how to fix GTMetrix grade, the current grading is dropped automatically every month. 2. Onpage & Offpage Optimisation, You will need to submit full audit report for before and after Description need approve before start off page. 3. Preferred Singapore backlink. Suggestion backlink provided as attached 4. We are Singapore based company, looking at 250 local backlink submissions per month 5. Email address for backlink account registration will be provided, it is compulsory to use our company email for ALL backlink submission 6. We will provide content for ALL the backlink submissions on monthly basis. We do not accept repeat content 7. Please include social media URL in article submis...
I am looking for someone to help improve my website's Core Web Vitals scores on Google Speed and GTMetrix. Currently, my scores are above 80%, but I need help to make them even better. To do this, I have an existing style guide that can be used as a starting point. Ultimately, I am looking to get my scores up to 90% or higher. If you have the skills and experience to help make this happen, then I invite you to submit an offer. Thank you!
● Optimización de imágenes (formato WEBP) ● Instalación/configuración módulo caché ● Instalación proxy CloudFlare ● Minificación de códigos HTML, CSS, JS de ser necesario ● Verificación de estructura del sitio e impresión del contenido (DOM) ● Evaluación de templates, plugins y/o elementos web ● Validación de estado del servidor Referencias: ○ GTMetrix ○ PingDom ○ Google SpeedInsights
I am looking for a skilled develop...com/ This optimisation needs to be done without downloading more plugins. Ideal Skills and Experience: - Experience in WordPress website speed optimization - Proficiency in performance optimization techniques, such as caching, minification, and image optimization - Knowledge of server-side optimization techniques, such as server caching and database optimization - Familiarity with tools like GTmetrix, Pingdom, or Google PageSpeed Insights to measure and analyze website performance - Ability to identify and resolve any potential bottlenecks or issues impacting website speed - Strong problem-solving skills and attention to detail - Excellent communication and collaboration skills to work effectively with the client and provide regular updates on...
Meilleurs articles de la communauté gtmetrix
Herramientas online para desarrolladores frontend
Herramientas online para desarrolladores frontend
12 Tips And Tricks For Increasing Your Conversion Rates Through Web Design
Are you interested in increasing your conversion rates through web design? Check out these 12 tips and tricks for increasing web conversion rates.