Template-by-template rendering audit
Each template tested as Googlebot, with raw and rendered HTML compared and every gap tied to a fix.
The Problem
Your App Looks Finished to Users and Half Empty to Google
It shows up after a launch or a framework switch. Pages look right in a browser, but search results show missing titles, stale descriptions, or no listing at all.
Empty shell
Google's first fetch gets a page with almost no content.
Empty shell
Render key templates on the server so the copy is in the first response.
Click links
Category links are buttons, so Googlebot can't find those pages.
Click links
Rebuild navigation as anchor elements with href attributes that crawlers can follow.
Soft 404s
Deleted items return a 200 status with a not found message.
Soft 404s
Send a real 404 status, or a noindex tag, for pages that no longer exist.
Late metadata
Titles and canonicals change after scripts run, so Google picks wrong.
Late metadata
Put titles, descriptions, and canonicals in the server HTML so both versions match.
Your new React build looks sharp, and organic traffic fell the month it shipped. A URL Inspection test shows why. The HTML Google first receives is a near-empty shell, and the rendered version lacks copy that loads after a click. Category links are buttons with click handlers, so Googlebot can't find the pages behind them. Removed items still return a 200 status with a not found message. Every week this stays live, competitors with plain HTML pages take the searches you used to win.
We start with your templates, not a generic crawl. For each one we compare the raw server response with the HTML Google renders. Then we fix the gaps in your code: real links, titles and canonicals in the first response, correct status codes, and server rendering where content must load first. Your developers review every change as a pull request. Search sees the same page your users do, not a loading spinner.
Rendered HTML compared
We compare the server response with the HTML Google renders for every template you care about.
Links Google can follow
Menus, filters, and pagination become anchor links with href attributes instead of click handlers.
Server rendering where needed
Key templates move to server rendering, static generation, or prerendering when content must load first.
Our JavaScript SEO Services Process
From First Rendering Test to Indexed Pages in Five Steps
You see what Google renders before any code changes, approve each fix as a ticket, and review every pull request on staging before it merges.
We run 3 of your key URLs through Google's URL Inspection live test and compare raw and rendered HTML. You get a short note on what Google sees and whether an audit is worth it.
What's Included
What You Get With JavaScript SEO Best Practices Applied in Code
The full scope: a template-level audit, crawlable links, server-rendered metadata, honest status codes, rendering changes where they pay off, and a recrawl report.
Compare Options
DeveloperLook vs SEO Agency vs In-House Developer
A general SEO agency suits content and links, and your own developers know the codebase best. Rendering sits between the two, so here is where each option fits.
| Feature | DeveloperLookBest fit | SEO agency | In-house developer |
|---|---|---|---|
| Rendering diagnosis | Every template tested as Googlebot | Crawler report, light rendering checks | Rarely tests as Googlebot |
| Fixes in code | Pull requests in your repository | Advice passed to your developers | When the roadmap allows |
| Framework knowledge | React, Vue, Angular, Svelte, Next.js, Nuxt | Varies by consultant | Deep in your own stack |
| Search guidance | Google's JavaScript docs applied | Strong on content and links | Often learned during the project |
| Testing before release | Staging tests with URL Inspection | After launch, in Search Console | Unit tests, rarely search checks |
| Content and links | Not included, rendering only | Their strongest area, monthly | Not usually their job |
| Cost predictability | Fixed scope from $850 | Monthly retainer, ongoing | Lowest when time is free |
| Code ownership | Every change in your repository | Depends on your developers | Already yours |
DeveloperLook
SEO agency
- Rendering diagnosis
- DeveloperLook: Every template tested as GooglebotSEO agency: Crawler report, light rendering checks
- Fixes in code
- DeveloperLook: Pull requests in your repositorySEO agency: Advice passed to your developers
- Framework knowledge
- DeveloperLook: React, Vue, Angular, Svelte, Next.js, NuxtSEO agency: Varies by consultant
- Search guidance
- DeveloperLook: Google's JavaScript docs appliedSEO agency: Strong on content and links
- Testing before release
- DeveloperLook: Staging tests with URL InspectionSEO agency: After launch, in Search Console
- Content and links
- DeveloperLook: Not included, rendering onlySEO agency: Their strongest area, monthly
- Cost predictability
- DeveloperLook: Fixed scope from $850SEO agency: Monthly retainer, ongoing
- Code ownership
- DeveloperLook: Every change in your repositorySEO agency: Depends on your developers
Projects We've Built
JavaScript Sites and Apps We Have Built
These are JavaScript builds we designed and developed, shown for the stacks we work in every week. They are build projects, not SEO case studies.
El Marena Travel Adventures Tour Booking Website
- Travel
- Website
Staffic.io Marketing Website for a Time Tracking SaaS
- HR & Staffing
- Website
Logify Project Risk and Control Management Web App
- Logistics & Transportation
- Construction
- Dashboard
NextEdge Startup Web Design & Development
- Startups
- Technology
- Business
What Our Clients Say
What Clients Say After Launch
Feedback from teams we have built and launched websites for.
We had a pretty specific idea of what we wanted our website to become, but I wasn’t sure how easily we could explain all of it to a development team. There were quite a few moving parts, and we were working toward a deadline, so I expected a few things to get lost along the way. That never really happened. They understood what we were trying to achieve, kept us updated throughout the process, and got everything ready within the agreed timeline. The final site feels much easier to navigate, works beautifully on mobile, and is noticeably smoother for our customers. It was a huge relief seeing the original idea actually turn into the website we had in mind.
The mobile experience is probably my favourite part of the new site. We had spent a lot of time making sure the desktop version looked right, and the team kept pushing us to think about how everything would actually feel on a phone too. They were right. The navigation is clean, the interactions feel natural, and everything we’ve tested so far works exactly as it should. They also went through the links, forms, integrations, and other details more than once before launch, which I really appreciated. And even after going live, we could still reach out when something came up. The whole process felt friendly, organised, and surprisingly straightforward.
What I appreciate most is that the website is actually easy for us to manage now. We can update content ourselves instead of sending a developer a message every time we need to change something small. They also paid attention to the technical SEO side, which mattered to us because we didn’t want a new website to create problems for the traffic we already had. I’ve probably asked more questions than I should have since launch, but every question has been handled patiently and without any fuss. The team is easy to work with, they explain things clearly, and when we need something changed, they focus on getting it done rather than making the process complicated.
1,250+
Projects shipped
10+
Years of experience
Top 3%
Upwork Top Rated Plus
5 stars
Average review score
1,250+
Projects shipped
10+
Years of experience
Top 3%
Upwork Top Rated Plus
5 stars
Average review score
Want results like these?
Tell us what you are building. You get a reply within 24 hours on business days, then a written estimate.
Work Culture
Why Engineering Teams Trust Us With Rendering Fixes
We work like members of your engineering team: inside your repository, through your review process, and with tests that prove what Google sees after each change.
Fixes arrive as pull requests
We change code through your review flow, never by editing production. Your developers see and approve every line before it merges.
Googlebot's view, not ours
We judge pages by the rendered HTML in URL Inspection, not by how they look in our browser. That version is what Google indexes.
Template-level thinking
Most JS SEO fixes live in a template, so one change repairs every page built on it. Sizing work by template keeps quotes small.
Google's docs as the rulebook
We follow Google's SEO guidance for JavaScript sites and link the source in every ticket. Your team can check the rule instead of trusting our opinion.
Honest about rendering choices
Server rendering is not always needed, and it costs build time. If prerendering or a smaller fix solves the problem, we recommend that instead.
Your code stays yours
Everything we write lives in your repository under your licenses. There is no proprietary script or rendering service you have to keep paying for.
Overview
How does JavaScript SEO work for sites built on React, Vue, or Angular?
DeveloperLook handles JavaScript SEO for sites built on React, Vue, Angular, and other frameworks. We test each template as Googlebot, fix links, titles, canonicals, and status codes in your code, and add server rendering where it is needed. Plans start at $850 with a fixed scope, most audits take 1 to 2 weeks, and every fix lands in your repository.
DEVELOPERLOOK
Project facts · JavaScript SEO Services
- Service
- JavaScript SEO Services (rendering audit, code fixes, server rendering)
- Typical timeline
- 1 to 2 weeks to audit, 3 to 6 weeks with server rendering
- Platforms
- React, Next.js, Vue, Nuxt, Angular, Svelte, and single-page apps
- Built with
- URL Inspection, Chrome DevTools, Lighthouse, Screaming Frog, Playwright
- Experience
- 10+ years of development experience and 1,250+ shipped projects
- Post-launch support
- 30 days of fix support (60 days on Server Rendering Rollout)
- Communication
- Calls in US, UK, and AU business hours
- Starting price
- From $850 USD, fixed scope after a free rendering review
Reviewed 27 Oct 2026 by Saimul Islam
Good fit
Single-page apps on React or Vue
Your marketing pages live inside a client-rendered app, and a URL Inspection test shows Google gets an empty div where your copy should be.
Teams moving to a new framework
You plan to move an older Angular build to Next.js or Nuxt and want search checked on staging before launch, not after traffic drops.
Stores with a headless storefront
Your headless storefront loads products and filters with JavaScript, and category pages appear in Google without prices, reviews, or product links.
Marketing leads short on developer time
You know SEO for JavaScript sites needs code changes, but your developers are busy on the product and need tickets they can ship in one sprint.
Agencies with JavaScript-heavy client sites
Your agency won a client on Angular or Vue, and you need a JavaScript SEO agency behind your team that can read the rendered DOM and fix it.
Not a fit
Site renders HTML already
Your site runs on a server-rendered WordPress or Shopify theme with no app shell. Our Technical SEO Services page fits crawl and speed problems on standard templates better.
HTML fine, pages still skipped
Your raw HTML is complete, yet Google still leaves pages out. That is an indexing problem rather than a rendering one, so our Google Indexing Issues Fix service is the better start.
Need a monthly SEO program
You want content, links, and monthly reporting rather than a rendering fix. Our SEO Services program covers that and adds technical work when it is needed.
Budget under $850
You need a first look for less than $850. Run 3 key pages through Google's URL Inspection live test first: if the rendered HTML is complete, you may not need us yet.
Not sure we're the right fit?
Book a free call or message us. We'll tell you honestly whether we're the right team.
Pricing
Transparent Starting Prices for JavaScript SEO Services
These are starting points in USD. Your final price depends on the number of templates, your framework, and whether server rendering is needed, and you get a fixed proposal after a free rendering review.
For Agencies
White-Label JavaScript SEO for Agencies and Studios
You own the client relationship. We supply the engineering behind your SEO advice: rendering audits and pull requests in the client's repository. Your account team gets plain-English notes to forward under your brand.
How the partnership works
White label: your client only ever sees your brand
Your clientSees only your brand
You, the agencyOwn the relationship
DeveloperLookBehind your brand
Share the brief
Send the client's URLs, framework, and repository access, plus the SEO findings so far.
- Client needs
- You share the details
- Details received
We test and quote
We run the rendering review and return a fixed proposal under your brand.
- Scope and plan
- Proposal to resell
- Your quoteYOUR LOGO
Fix and hand off
We ship the pull requests, retest as Googlebot, and hand you the final report.
- Done by our team
- Your brand on it
- Handed to your clientDone
- Your client
- You, the agency
- DeveloperLook
Share the brief
Send the client's URLs, framework, and repository access, plus the SEO findings so far.
- Client needs
- You share the details
- Details received
We test and quote
We run the rendering review and return a fixed proposal under your brand.
- Scope and plan
- Proposal to resell
- Your quoteYOUR LOGO
Fix and hand off
We ship the pull requests, retest as Googlebot, and hand you the final report.
- Done by our team
- Your brand on it
- Handed to your clientDone
Partner with DeveloperLookDelivered under your brand
The Right Technology for Your Project
Technology Stack
Tools we use to see pages the way Google does, fix them inside your framework, and confirm the result after every release.
Google Search Console
Chrome DevTools
Lighthouse- Screaming Frog
- Playwright
- Puppeteer
React
Next.js
Vue.js
Nuxt
Angular- Svelte
Node.js
Vercel
Netlify
Cloudflare- Astro
PageSpeed Insights
Google Analytics (GA4)- BigQuery
Google Sheets
01 / 04
Related Services
Services that pair with fixing JavaScript and SEO problems: the core SEO program, technical fixes, indexing work, mobile SEO, and Next.js builds.
SEO Services
DeveloperLook provides SEO services for growing businesses as one monthly program. As an SEO company with its own developers, we plan keywords, ship technical fixes in your site, publish content, earn links, and report the leads search brings in.
Technical SEO Services
DeveloperLook is a technical SEO services company that audits and fixes crawl, indexing, rendering, and speed problems in your code. We work on custom, headless, WordPress, and ecommerce sites, and verify every fix after release.
Google Indexing Issues Fix
DeveloperLook provides a Google indexing issues fix for sites with pages crawled but not indexed, or discovered and never crawled. We sort every excluded URL in Search Console by cause, fix content, links, and duplicates, then validate the fixes with Google.This page
JavaScript SEO Services
Pairs with the 6 services around it
Next.js Development Services
DeveloperLook provides Next.js development services for marketing sites, ecommerce fronts, and SaaS apps. As a Next.js development company, we build with the App Router, upgrade older apps, and connect a headless CMS your editors can use.
React SEO Services
DeveloperLook provides React SEO services for single-page apps and client-rendered sites. We apply React SEO best practices route by route: unique titles, crawlable links, real 404s, and prerendering or server rendering where Google needs full HTML.
Next.js SEO Services
DeveloperLook provides Next.js SEO services for sites on the App Router or the Pages Router. We audit every route, then fix metadata, structured data, sitemaps, status codes, and Core Web Vitals with the framework's own APIs, as pull requests in your repository.FAQ
Frequently Asked Questions
Straight answers on cost, timing, rendering choices, and how SEO, JavaScript frameworks, and Google fit together.
Saimul IslamFounder & CEO, DeveloperLookStill have questions?
Send a message or book a call with the team.
JavaScript SEO services start at $850 for a rendering audit of up to 5 templates, quick fixes included. Code fixes on those templates cost $1,750, and server rendering for up to 12 templates costs $2,700. You get a fixed proposal after a free review of 3 key URLs.
A JavaScript SEO audit takes 1 to 2 weeks for up to 5 templates. Code fixes add 1 to 3 weeks, and server rendering projects usually need 3 to 6 weeks in total. Google then needs time to recrawl and render the changed pages before results show in Search Console.
It's the work of making sure search engines can crawl, render, and index content that depends on JavaScript. It covers links, metadata, status codes, and lazy-loaded content. Google handles these pages in three phases (crawling, rendering, and indexing), and a gap at any phase keeps content out of search.
No, JavaScript isn't bad for SEO when the site is built with search in mind. Google renders JavaScript, and plenty of React and Vue sites rank well. Trouble starts when links depend on clicks or key content appears only after actions Googlebot doesn't take, such as tapping a tab.
It hurts sites that put content and links behind work crawlers skip or delay. Common causes are navigation built from buttons, content loaded on click, robots meta tags changed by a script, and errors that stop rendering. Google's own guidance also notes that not all bots can run JavaScript.
Yes, JavaScript can help SEO when it makes pages faster and more useful, like a server-rendered React site with quick navigation. The gain comes from the experience, not the language. Sites that render key content on the server and add interactivity afterward get the best of both.
Run a live test in the URL Inspection tool in Search Console, then view the rendered HTML and screenshot. Check that body copy, links, titles, and canonicals appear there. For a whole site, crawl once with JavaScript rendering on and once off, then compare the results by template.
Page speed affects it in two ways: slow scripts delay rendering, and heavy pages score worse on Core Web Vitals. Large bundles and long hydration push Interaction to Next Paint up on mid-range phones. We trim bundles, defer scripts that aren't critical, and server-render content so it paints first.
Use server-side rendering, static generation, or hydration rather than dynamic rendering. Google calls dynamic rendering a workaround, not a long-term solution, because bots get a separate version to maintain. We choose per template: static generation for content pages, server rendering for data that changes often.
Yes, every change lives in your repository as a reviewed pull request, and nothing depends on a service of ours. You get 30 days of fix support after release, or 60 days with indexing checks on Server Rendering Rollout. If a cheaper option covers your case, we'll tell you before we quote.
Saimul IslamFounder & CEO, DeveloperLookStill have questions?
Send a message or book a call with the team.
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