Shopify theme developer — Core Web Vitals, canonical, redirects
Need a Shopify developer for technical adjustments in the store theme based on a completed audit.
Tasks:
technical optimization of Core Web Vitals (mobile): LCP, lazyload, defer/async JS,
removal of duplicate URLs (canonical, pagination, /collections/.../products/...),
fixing HTML/CSS errors in the theme,
404 pages and 301 redirect,
image optimization (srcset, alt, mobile),
setting up security headers (via Cloudflare or an alternative),
technical adjustments (favicon, etc.).
SEO, content, and texts are not included — only code and technique.
A detailed description will be in PDF
Applications 1
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2 days1073 USD
981 3 0 2 days1073 USDHi, I can help you, please check my previous shopify theme and stores in the following projects.
gymshark.com(gym clothes)
fashionnova.com(fashion clothes)
allbirds.com(shoes)
colourpop.com(cosmetics)
jeffreestarcosmetics.com(cosmetics)
puravidabracelets.com(precious metal crafts)
harvesttandmill.com(clothes)
magicmind.com(caffeine)
… brooklinen.com(bedding)
meowmeontweet.com(cosmetics)
if you like them , we can discuss further in more details.
Thanks
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7 days765 USD
266 7 days765 USDHello! I have reviewed your project and can assist with technical adjustments based on the audit for your Shopify store. Since I work EXCLUSIVELY with Shopify stores, I have extensive experience in theme customization and solving technical tasks of any complexity.
For the past 6 years, I have been involved in eCommerce projects and specialize in performance optimization. According to my standards, the website loading speed should be less than 1 second, which includes perfect optimization of Core Web Vitals metrics (LCP, lazyload, defer/async JS). Eliminating duplicate URLs, setting up redirects, and technical image optimization are standard parts of my workflow.
My approach to testing and quality assurance (QA) includes analyzing requirements, developing a testing plan, and creating scenarios for complete elimination of HTML/CSS errors. I focus specifically on the technical part and code to ensure maximum conversion and stability of the website.
When will you have time to get in touch to discuss technical solutions and details of implementing adjustments?
Best regards, Oleg G.
… Senior Shopify Developer
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4 days805 USD
156 4 days805 USDGood day!
I have experience working with Shopify (Liquid, HTML/CSS/JS) and technical optimization of stores. I can make all the adjustments according to your audit: improving Core Web Vitals (LCP, lazyload, defer/async), eliminating duplicate URLs and canonical issues, fixing theme errors, setting up 404/301 redirects, optimizing images (srcset, alt, mobile), as well as security headers through Cloudflare and other technical refinements.
I work exclusively with code and the technical part, without SEO content. I am ready to review the PDF and start as soon as possible.
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7 days778 USD
1635 4 0 7 days778 USDHello!
I am a Shopify Partner with over 7 years of experience. I will complete your task quickly and efficiently.
Feel free to reach out, I will be happy to collaborate!
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7 days778 USD
196 7 days778 USDHello. There is an opportunity to solve your problem. With a large volume from your SEO specialist, the issues are not critical and can be addressed. Regarding filling in the data in the fields that are missing - I can create an automated solution using AI if you do not have materials to fill in.
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12 days805 USD
368 12 days805 USDHi! I can handle all technical Shopify theme optimizations based on your audit Core Web Vitals (mobile) JS optimization duplicate URLs redirects HTML/CSS fixes image optimization and security headers.
Purely code & technical work no SEO content
Ready to start
Freelancehunt
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1 day805 USD
265 1 day805 USDGood day!
I am interested in your project for the technical optimization of a Shopify store based on a ready-made audit. I have experience working with Core Web Vitals (LCP, CLS, JS/CSS optimization, lazyload), technical SEO, and refining Shopify themes.
I can help with:
performance optimization (defer/async for scripts, lazyload for images, improving LCP on mobile);
setting up canonical tags, pagination, and removing duplicate URLs for collections/products;
fixing HTML/CSS errors in the theme, setting up 404 and 301 redirects;
image optimization (formats, srcset, alt, mobile variants);
setting up security headers through Cloudflare or another CDN.
I suggest continuing the conversation in private messages.
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14 days778 USD
2041 27 0 14 days778 USDHello.
I have experience working with stores on Shopify.
I do development from scratch, various modifications, and optimization.
Feel free to contact me.
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6 days805 USD
1457 4 0 6 days805 USDReady to make technical adjustments in the Shopify theme based on your audit: Core Web Vitals (mobile), URL duplicates, HTML/CSS, redirects, images, security headers. I have worked with Shopify, speed optimization, and technical SEO. I will do it carefully and on time, without content edits.
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5 days805 USD
475 2 0 5 days805 USDready to help you out with this
have huge experience working in full stack
will send you previous work to make sure we match
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12 days805 USD
465 12 days805 USDHi,
I can handle the technical optimization of your Shopify theme based on the audit. I’ll improve Core Web Vitals (mobile), fix duplicate URLs and canonicals, resolve HTML/CSS issues, set up 404/301 redirects, optimize images, configure security headers (Cloudflare), and handle other technical fixes (favicon, etc.).
I work strictly on code and technical SEO only (no content). Ready to review the PDF audit and provide timeline and cost
Freelancehunt
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12 days805 USD
772 1 0 12 days805 USDHi,
I can handle the technical fixes for your Shopify theme.
Core Web Vitals optimization (mobile: LCP, lazyload, JS defer/async)
Fix duplicate URLs (canonical, pagination, collections/products)
HTML/CSS error fixes
… 404 pages and 301 redirects
Image optimization (srcset, alt, mobile)
Security headers (Cloudflare or alternative)
Minor technical adjustments (favicon, etc.)
Ready to review the audit PDF and confirm cost and timeline
Freelancehunt
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15 days832 USD
120 15 days832 USDHi Vladyslav,
We can help you implement the technical fixes from your completed Shopify audit—strictly on the code and performance side, no SEO content involved.
At cmsMinds, we regularly handle Core Web Vitals optimization (mobile-first) for Shopify stores, including:
-Improving LCP by optimizing theme structure, critical assets, and render-blocking resources
-Proper lazy loading for images/sections and defer/async JS handling
-Fixing duplicate URLs (canonical tags, pagination logic, /collections/.../products/...)
… -Resolving HTML/CSS validation issues inside the theme
-Managing 404 errors and clean 301 redirects
-Image optimization (srcset, responsive images, alt tags, mobile sizing)
-Setting up security headers via Cloudflare or suitable alternatives
-General technical cleanups (favicon, minor theme adjustments, etc.)
Our focus is clean, scalable Shopify code that aligns with Google’s performance and technical best practices, without touching content or copy.
We also work extensively across Shopify, WordPress, Magento, WooCommerce, Drupal, and SEO-related technical setups, so we’re comfortable handling complex storefronts and edge cases.
If you’d like, I can review the audit and share a clear execution plan with timelines.
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12 days859 USD
4429 80 1 4 12 days859 USDTrust a professional with over 10 years of experience! The rate and deadlines are current! I will be happy to collaborate! Experience in commercial development of online stores on CMS, business portals, and corporate websites - 11 years! +CMS: WordPress(+Woocommerce) PrestaShop/Opencart/Joomla/Bitrix/MODX/DLE/Shopify php/html/css/js/Mysql, PhotoShop/Figma Examples of work (from scratch, turnkey): https://amari.net.ua/ https://heypretty.gr/ https://wildandorganic.com/ https://cryptosignals.org/ https://ecnbot.com https://locs-ua.com/ https://www.grower.com.ua/ https://www.alternativemedicine.com.ua/ https://silkkiss.ua/ https://v12coffee.com.ua/ https://smrtalgo.com/ https://sengero.no/ https://beautybysim.no/ https://sonatagalleri.com/ https://www.solmy-realestate.com/ https://www.emmanuel.com.ua/ https://www.onsitecomputersinc.com/ https://express-tehbud.com/ https://korostenporcelain.com.ua/ https://sladok.com.ua/ https://pricemds.com/ https://picupmedia.com/ https://www.serasar.com/
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30 days805 USD
612 21 0 30 days805 USDHello. I can fulfill your order. I have experience. Write to me, and we will agree.
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7 days885 USD
127 7 days885 USDHi
I’m a developer with 4+ years of experience, specializing in themes, performance, and technical SEO. I work strictly according to audits—code and technical fixes only, no extra content or unnecessary SEO.
I can efficiently fix Core Web Vitals, URL duplicates, HTML/CSS errors, 404/301 redirects, optimize images, and configure security headers. All changes are tested on mobile, with a clear report of improvements.
For a standard theme, I can complete everything within 5–7 days. I work hourly or can provide a fixed price after reviewing your audit PDF. Ready to start immediately.
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7 days805 USD
2013 59 0 7 days805 USDДобрый день!
сейчас в Швейцарии (Vaud), 10+ лет веб-разработка (ReactJS, HTML/CSS/JS ES6).
Задача Shopify (300 PLN):
✅ Core Web Vitals (LCP/FID/CLS)
✅ Canonical tags
✅ 301 redirects
… Готов начать!
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14 days805 USD
11626 68 0 14 days805 USDGood day
ready to discuss the details in private messages
...........................................
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3 days805 USD
331 3 days805 USDhey,
i have checked your requirements and i can do it perfectly
please feel free to contact me anytime, thank you
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7 days805 USD
12784 4 2 7 days805 USDHello,
I’ve reviewed the technical requirements from your PDF and understand the scope clearly. This is a complex Shopify technical cleanup focused on security headers, Core Web Vitals (mobile-first), URL and pagination deduplication, canonical logic, redirects, code validation, and image optimization — without touching SEO texts or content creation.
I have hands-on experience fixing exactly these issues on Shopify: implementing Referrer-Policy and Permissions-Policy headers, improving LCP on mobile through image and render optimization, cleaning HTML/CSS errors caused by themes and apps, and eliminating duplicates caused by GET parameters, uppercase URLs, trailing slashes, pagination, and multi-category product URLs. I also work carefully with canonicals, sitemap cleanup, redirects without loops, and preserving SEO equity during all technical changes.
I approach this kind of task systematically: first stabilizing URL logic and redirects site-wide, then fixing canonical and pagination behavior, followed by performance and security improvements, and finally full validation and testing. All changes are implemented at the theme, server, and Shopify logic level where appropriate.
I’m comfortable working with large stores, existing themes, and third-party apps, and I focus on clean, scalable solutions that won’t break future updates. I’m ready to take this task end-to-end and ensure the site fully complies with modern technical SEO and security standards.
…
Best regards,
Jeo Vincent Carretas
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