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Home/Resources/SEO for Web Design Agencies: Resource Hub/Common SEO Mistakes Web Design Agencies Make
Common Mistakes

Your Agency Builds Beautiful Websites — But Google Can't Read Half of Them

The SEO mistakes that quietly cost web design agencies new client inquiries — and a framework for diagnosing which ones are hurting you right now.

A cluster deep dive — built to be cited

Quick answer

What SEO mistakes do web design agencies most commonly make?

Web design agencies most often hurt their own rankings through JavaScript-heavy builds Google struggles to crawl, portfolio pages with no descriptive text, slow load times from unoptimized assets, and ignoring technical SEO entirely. These mistakes are fixable, but they compound over time if left unaddressed.

Key Takeaways

  • 1JavaScript-rendered content and single-page application frameworks can make entire agency websites invisible to search crawlers unless rendering is handled correctly.
  • 2Portfolio pages are high-value SEO real estate — but most agencies publish screenshots with no text, missing the chance to rank for project-specific keywords.
  • 3Page speed is both a ranking signal and a conversion factor; agencies running heavy animation frameworks often score poorly on Core Web Vitals for their own site.
  • 4Many agencies optimize client sites but neglect their own — internal SEO is frequently deprioritized because it doesn't generate direct revenue.
  • 5Thin service pages that list capabilities without context fail to satisfy search intent and rarely rank for competitive terms like 'web design agency [city]'.
  • 6Ignoring local SEO means losing map pack visibility to smaller, less capable competitors who simply optimized their Google Business Profile.
In this cluster
SEO for Web Design Agencies: Resource HubHubSEO for Web Design AgenciesStart
Deep dives
SEO Checklist for Web Design Agency WebsitesChecklistHow to Audit Your Web Design Agency's SEOAuditHow to Audit Your Web Design Agency's SEOAuditSEO Statistics for Web Design Agencies in 2026Statistics
On this page
Why Web Design Agencies Are Especially Prone to SEO ProblemsTechnical Mistakes That Make Agency Sites Hard to CrawlContent Mistakes That Leave Rankings on the TableBefore and After: What These Fixes Actually Look LikeWhat Happens When These Mistakes Go UnaddressedHow to Prioritize Fixing What You Find

Why Web Design Agencies Are Especially Prone to SEO Problems

Web design agencies face a specific irony: the skills that make them great at building websites for clients often work against their own search visibility. Designers prioritize visual impact. Developers reach for modern frameworks. Neither group is naturally incentivized to ask whether Google can crawl the result.

There are a few structural reasons this pattern repeats across agencies:

  • The cobbler's shoes problem. Client work generates revenue. Internal site maintenance doesn't. Most agencies deprioritize their own SEO indefinitely.
  • Framework preference over crawlability. React, Vue, and Angular produce beautiful interactive experiences, but without server-side rendering or proper prerendering, Googlebot may see a blank page.
  • Portfolio work treated as visual-only. Screenshots and embedded previews look impressive to human visitors. They contribute nothing to search relevance without accompanying descriptive text.
  • Mistaking design quality for SEO. A site can look flawless and still rank on page four. Search engines don't evaluate aesthetics — they evaluate structure, content relevance, and technical signals.

These aren't failures of expertise. They're failures of attention. Understanding the specific patterns helps agencies diagnose their own situation quickly rather than guessing.

Technical Mistakes That Make Agency Sites Hard to Crawl

Technical SEO problems are the most damaging category for web design agencies because they can prevent any other optimization from taking effect. If Googlebot can't reliably crawl and index your pages, content quality and keyword targeting are irrelevant.

JavaScript Rendering Without a Fallback

Single-page applications built in React or Vue serve content dynamically after the initial page load. Googlebot can process JavaScript, but it does so in a second wave — and crawl budget limits mean not every page gets that second pass. Agencies that build their own sites with these frameworks and skip server-side rendering or static generation often have pages that appear empty in Google's index. Run a URL Inspection in Google Search Console and check the rendered HTML against what you'd expect to see. If the rendered version is sparse, you have a JavaScript indexing problem.

Core Web Vitals Failures

Agencies frequently build their own sites as portfolio showcases — full-screen video headers, parallax scrolling, complex CSS animations. These elements add load time. In our experience working with design-focused businesses, it's common to see Largest Contentful Paint scores well above Google's recommended threshold on agency sites that would never let a client ship the same performance profile. Check your own site in PageSpeed Insights before assuming you're fine.

Broken Internal Linking After Redesigns

Agencies redesign their own sites more often than most businesses. Each redesign carries a risk of broken internal links, orphaned pages, and lost redirects. A page that earned backlinks under an old URL structure loses all of that authority if the redirect chain isn't maintained. Always audit redirect integrity after any structural site change.

Missing or Malformed Structured Data

LocalBusiness, Service, and BreadcrumbList schema are straightforward to implement and help Google understand your site's context. Many agency sites skip structured data entirely or implement it incorrectly — particularly when using page builders that generate schema automatically but with placeholder content left in.

Content Mistakes That Leave Rankings on the Table

Technical issues prevent crawling. Content mistakes prevent ranking. Both types of problems exist on most agency sites simultaneously, which is why agencies often feel stuck — fixing one layer doesn't move the needle because the other layer is still broken.

Portfolio Pages With No Text

A portfolio case study that shows a screenshot and lists the client name gives Google nothing to work with. Consider what a prospective client would search: 'ecommerce web design for food brands', 'Shopify redesign for subscription box company', 'B2B SaaS website redesign'. None of those phrases appear on a page that's just an image and a logo. Each portfolio entry is an opportunity to rank for long-tail terms specific to the industry, project type, and technology stack involved. Write at minimum 150-200 words per case study describing the problem, approach, and outcome.

Service Pages That List Features Instead of Answering Intent

A page titled 'Web Design Services' that lists 'responsive design, custom development, CMS integration' in bullet points isn't answering the question a prospect is actually asking. They want to know: who do you work with, what does the process look like, how long does it take, what does it cost. Pages that answer those questions with specificity rank better and convert better than capability lists.

No Location-Specific Content

Many agencies operate locally or regionally but never create content that signals geography. A page optimized for 'web design agency Chicago' requires more than just dropping the city name into a title tag — it needs to demonstrate local context, local clients, and local relevance. Without that, you're competing against every national agency in the same keyword pool with none of the local signals that would help you rank in the map pack.

Blogging Without a Keyword Strategy

Agencies that do publish content often write about design trends, award wins, or company news — topics their prospective clients aren't searching for. A structured content plan targeting questions prospects actually ask ('how much does a website redesign cost', 'how long does a website project take') generates traffic with commercial intent. Industry news generates almost none.

Before and After: What These Fixes Actually Look Like

Abstract advice is easy to dismiss. Here are concrete examples of what the mistake looks like versus what the corrected version looks like — so you can audit your own site against a real standard.

Portfolio Page — Before

Page title: Project: Bloom Bakery. Content: one full-width screenshot, client logo, and a 'Visit Site' button. No text. No description. No schema.

Portfolio Page — After

Page title: E-Commerce Website Design for Bloom Bakery | Shopify Custom Theme. Content: 250-word case study covering the brief (online ordering for a local bakery scaling to wholesale), the approach (custom Shopify theme, mobile-first checkout flow), and the outcome (faster load times, improved conversion rate on mobile). Tags for industry (food & beverage), platform (Shopify), and service type (e-commerce design). LocalBusiness schema referencing the client's city where relevant.

Service Page — Before

Heading: Our Web Design Services. Content: bulleted list of 12 capabilities. No client types mentioned. No process described. No pricing context. Word count: 180 words.

Service Page — After

Heading: Web Design for Professional Services Firms in [City]. Content: 600-word page covering who the service is for (law firms, accounting practices, consultancies), what the engagement process looks like (discovery, wireframes, development, launch), typical timelines, and what clients should know about pricing ranges. FAQ section embedded at the bottom addressing the top three questions prospects ask. Internal links to relevant portfolio case studies.

The structural difference is that the 'after' versions answer the questions a prospect has, in language a prospect would use to search — rather than describing what the agency is capable of in the agency's own terminology.

What Happens When These Mistakes Go Unaddressed

Most of these mistakes don't cause immediate, visible damage. They cause slow, compounding invisibility — which makes them easy to dismiss until they're expensive to reverse.

Scenario 1: The Agency That Redesigned Without Redirects

An agency relaunches its website with a cleaner URL structure. Old URLs like /services/web-design become /what-we-do/websites. No redirects are set up. Over six to twelve months, the pages that had earned backlinks from directories, press mentions, and client referrals lose their link equity. Rankings for core service terms drop. The agency notices but can't identify the cause without a proper crawl audit. By the time the redirects are fixed, the lost authority takes months to recover.

Scenario 2: The JavaScript SPA No One Can Index

An agency builds their own site as a showcase of their React development capabilities. The site looks impressive. Google's index shows the homepage but nothing else — service pages, portfolio entries, and the blog are all rendered client-side with no prerendering. The agency generates zero organic traffic beyond brand searches for their own name. All new business comes from referrals, which caps growth at the size of the existing network.

Scenario 3: The Competitor With a Worse Site Ranks Higher

A less technically skilled local competitor has a simpler site — no animations, basic WordPress theme, straightforward copy — but has a fully optimized Google Business Profile, 40+ genuine reviews, and location-specific landing pages. They consistently appear in the map pack for '[city] web design agency'. The technically superior agency doesn't appear because they never addressed local SEO signals. Prospective clients call the competitor first.

Each scenario is preventable with a structured audit and a prioritized remediation plan. The mistakes themselves are rarely catastrophic in isolation — it's the combination and duration that erodes competitive position.

How to Prioritize Fixing What You Find

If you've recognized several of these patterns on your own site, the next question is where to start. Not everything can be fixed at once, and not everything has equal impact. Here's how to think about sequencing:

Fix Technical Blockers First

JavaScript rendering issues and broken redirects can prevent any other work from having effect. Use Google Search Console's URL Inspection tool and Coverage report to identify indexing problems before investing time in content. A well-written service page that Google can't index is wasted effort.

Then Address High-Value Thin Content

Once technical issues are resolved, prioritize the pages that prospective clients land on during their evaluation process: your main service page, your portfolio index, and your top two or three individual case studies. These pages have the highest conversion value and the most to gain from content improvement.

Build Local Signals in Parallel

Local SEO work — Google Business Profile optimization, review generation, location-specific landing pages — runs independently of your site's technical health and can start generating map pack visibility within weeks. Don't wait for a full site overhaul to begin local work.

Create a Content Calendar Grounded in Search Demand

Once the foundational issues are addressed, a content program targeting questions your prospects are actually searching for compounds over time. Start with four to six articles covering high-intent topics (pricing, timelines, platform comparisons, how to evaluate an agency). Measure which ones generate traffic and conversions before scaling production.

A structured audit is the fastest way to identify which of these categories needs the most urgent attention on your specific site. If you'd rather not do that assessment alone, our audit guide walks through the exact steps — or you can let professionals handle your agency's SEO strategy from the outset.

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FAQ

Frequently Asked Questions

Open Google Search Console and run the URL Inspection tool on your key service and portfolio pages. Compare the 'Rendered HTML' view against what you'd expect to see — if the rendered version is missing your main content, Google is seeing a near-empty page. You can also search Google for 'site:yourdomain.com' and check whether your inner pages appear in the index at all.
Yes, but the recovery timeline depends on how long the redirects have been missing and how much link equity the affected pages had. Implement 301 redirects from every old URL to the closest equivalent new URL as soon as possible, then submit your updated sitemap in Search Console. Pages with strong backlinks typically recover within a few months once redirects are in place, though some authority loss is difficult to fully reverse.
In our experience, 150-300 words per case study is enough to give Google meaningful context without overwhelming visitors. Focus on three things: what the client's situation was before, what approach you took, and what the outcome looked like. Include the industry, platform, and service type in natural language — these are the phrases prospective clients use when searching.
Google doesn't rank design quality — it ranks relevance, authority, and technical accessibility. If a competitor has a complete Google Business Profile, consistent NAP citations, genuine reviews, and location-specific content, they can outrank a technically superior site that has neglected those signals. Check whether your Google Business Profile is fully optimized and whether you have any location-specific pages before assuming the problem is content quality.
Practically speaking, yes. Prospective clients often research an agency's own online presence before engaging them. An agency that ranks poorly for its own core terms is a harder sell than one that visibly demonstrates organic visibility. Beyond credibility, your own site is the best low-risk environment to test and refine SEO approaches before applying them to client work.
Fully optimizing your Google Business Profile — complete category, services, description, photos, and actively requesting reviews from past clients — typically produces the fastest visible improvement for agencies that want local map pack visibility. It doesn't require a site rebuild and can generate results within weeks rather than months.

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