Performance
Study Suggests Slow Mobile Websites May Be Costing Idaho Organizations
Slow mobile websites may be costing local organizations customers and visibility
Slow mobile websites may be costing local organizations customers and visibility
A new analysis of 50 Idaho based websites has revealed that many organizations across the state may be losing potential customers due to slow mobile performance. The study reviewed sites commonly associated with WordPress and measured how quickly key content appears for mobile visitors.
The findings suggest that a significant number of local business and nonprofit websites load far slower than what modern web performance guidelines recommend.
Mobile performance now directly affects business results
Over the past decade, mobile browsing has become the dominant way people access the internet. Industry research consistently shows that the majority of web traffic now occurs on smartphones, making mobile performance one of the most critical factors influencing online behavior.
Several widely cited studies highlight how strongly page speed affects business outcomes. Google has reported that 53 percent of mobile visitors abandon a site if it takes longer than three seconds to load (Google/SOASTA Mobile Page Speed Study). Additional Google research also found that when mobile page load time increases from one second to five seconds, the probability that a visitor will leave increases by 90 percent (Google Web Performance Research).
Large scale e-commerce research has reached similar conclusions. A study by Deloitte and Google found that improving mobile page speed by just 0.1 seconds can increase conversion rates by up to 8 percent for retail sites and 10 percent for travel sites (Deloitte Digital Milliseconds Make Millions Report). Even small delays in page performance can therefore have measurable financial impact.
This behavior has direct implications for businesses that rely on their websites to generate leads, reservations, appointments, or online purchases.
If a potential customer searches for a service while on their phone and encounters a slow loading site, they often return to search results and choose a competitor instead.
Findings from Idaho website performance tests
The new study analyzed 50 websites connected to Idaho organizations including chambers of commerce, tourism organizations, local businesses, and nonprofits. The analysis focused primarily on Largest Contentful Paint, a widely used performance metric that measures how long it takes for the main visible content on a page to appear for users.
- The average Largest Contentful Paint across tested sites was approximately 10.5 seconds
- Many sites exceeded 15 to 20 seconds before primary content appeared
- Several sites took more than 20 seconds to render key content on mobile devices
- For context, modern web performance guidelines recommend that primary page content should appear in under 2.5 seconds
- This means the average site in the dataset loads roughly four times slower than recommended thresholds
Examples of performance gaps
While some Idaho organizations performed well in the analysis, many others showed significant delays before primary content became visible.
In several cases, mobile visitors were required to wait more than 20 seconds before meaningful content appeared on the page.
Examples from the dataset include sites with load times exceeding 18, 20, and even 30 seconds before primary content appeared.
At those speeds, most mobile users will abandon the site long before the page finishes loading.
The WordPress factor
Many of the sites included in the study run on WordPress, one of the most widely used content management systems in the world.
WordPress was originally released in 2003 and is now more than 22 years old. In the context of the modern internet, where major platforms and technologies evolve every few years, software of that age is often considered extremely old.
WordPress still powers a large portion of the internet, but the platform often relies heavily on plugins, themes, and page builders that can significantly increase page weight and loading time.
Over time, these additions can create complex websites that require large amounts of code and scripts to load before users can interact with the page.
For businesses that rely on their websites as a primary marketing tool, these delays can have real financial consequences.
Why slow sites lose customers
Mobile visitors typically arrive on a website with a specific goal in mind. They may be looking for a phone number, a menu, directions, pricing information, or a way to book a service.
If a site takes too long to display that information, users frequently leave before finding what they need.
In competitive markets such as home services, healthcare, legal services, hospitality, and local retail, even small differences in website performance can influence which business ultimately receives the customer inquiry.
Performance also impacts search rankings
Website speed does not only affect user behavior. It can also affect how prominently a site appears in search results.
Google has incorporated performance metrics into its ranking systems, particularly for mobile searches.
Sites that load quickly tend to perform better in search visibility, while slower sites may struggle to maintain strong rankings.
For local businesses that depend on search traffic, this can reduce the number of potential customers who ever reach their website in the first place.
Website performance and emerging AI search tools
Search engines are no longer the only way people discover websites. A growing number of users now rely on AI-powered tools such as ChatGPT, Perplexity, and other AI search assistants to find information and recommendations.
While website speed is not currently a direct ranking factor for these AI systems, it can still influence whether a site is likely to be surfaced or recommended.
Many AI tools rely on information gathered from search engines, widely cited websites, and large collections of publicly available web pages. Websites that load slowly often perform worse in search rankings, receive fewer backlinks, and attract less engagement from users. Over time, this can reduce how frequently those sites appear in the broader web data that AI systems analyze.
In addition, automated systems that crawl and index websites often work more effectively with fast, lightweight pages. Pages that rely heavily on large scripts, page builders, or delayed content loading can be more difficult for automated systems to process.
As AI-driven discovery tools continue to grow, factors such as site speed, clean page structure, and easily accessible content may play an increasingly important role in whether organizations are discovered online.
A growing opportunity for Idaho businesses
Despite the performance challenges revealed in the study, the findings also highlight a major opportunity for businesses across Idaho.
Organizations that invest in faster, modern websites may gain a competitive advantage simply by providing a better mobile experience than others in their industry.
With mobile traffic continuing to grow each year, website performance is increasingly becoming a critical part of digital competitiveness.
For many Idaho organizations, improving mobile speed may be one of the most effective ways to capture more online interest and convert visitors into customers.
Detailed Performance Results
The following table summarizes the full performance results from the 50 websites included in the analysis. The organizations represented span communities across the entire state of Idaho. To avoid singling out individual organizations, each site is categorized by organization type rather than listing the specific domain.
| Category | LCP (seconds) | Performance | Accessibility | Best Practices | SEO |
|---|---|---|---|---|---|
| Marketing / Creative Agency | 3.2 | 93 | 85 | 79 | 85 |
| Software / Technology Company | 5.0 | 75 | 94 | 57 | 85 |
| Healthcare / Medical Practice | 21.4 | 55 | 88 | 71 | 92 |
| Nonprofit Organization | 2.5 | 91 | 87 | 54 | 85 |
| Health / Wellness Business | 20.8 | 58 | 90 | 100 | 92 |
| Retail Business | 9.2 | 62 | 89 | 79 | 100 |
| Local City / Municipal Site | 5.9 | 63 | 87 | 93 | 85 |
| Chamber of Commerce | 22.0 | 50 | 82 | 57 | 83 |
| Property Management Company | 6.9 | 56 | 83 | 32 | 92 |
| Property Management Company | 6.8 | 52 | 83 | 32 | 92 |
| Chamber of Commerce | 1.3 | 100 | 89 | 100 | 92 |
| Tourism / State Promotion | 6.8 | 58 | 87 | 57 | 92 |
| Tourism Organization | 11.8 | 56 | 87 | 57 | 92 |
| Physical Therapy Clinic | 5.4 | 80 | 93 | 96 | 92 |
| Professional Services | 6.2 | 52 | 94 | 39 | 100 |
| Chamber Business Directory | 10.2 | 59 | 94 | 79 | 85 |
| Physical Therapy Clinic | 10.8 | 69 | 96 | 100 | 100 |
| Tourism / City Promotion | 4.4 | 69 | 89 | 71 | 92 |
| Chamber Business Directory | 2.6 | 93 | 89 | 82 | 92 |
| Tourism Organization | 5.0 | 79 | 96 | 100 | 92 |
| Nonprofit Association | 32.8 | 61 | 85 | 100 | 92 |
| Tourism Organization | 6.7 | 70 | 81 | 82 | 100 |
| State Tourism Organization | 16.7 | 53 | 96 | 57 | 92 |
| Event Organization | 7.1 | 61 | 93 | 57 | 92 |
| Cleaning Service Business | 6.1 | 60 | 89 | 54 | 92 |
| Home Services Business | 5.8 | 62 | 83 | 75 | 92 |
| Business Consulting Firm | 18.6 | 64 | 80 | 75 | 92 |
| Physical Therapy Clinic | 3.7 | 76 | 92 | 79 | 100 |
| Physical Therapy Clinic | 5.7 | 77 | 91 | 100 | 85 |
| City Government Site | 8.4 | 59 | 83 | 61 | 92 |
| Botanical Garden / Nonprofit | 20.6 | 56 | 90 | 39 | 77 |
| Art Museum | 6.9 | 64 | 83 | 96 | 85 |
| Animal Welfare Nonprofit | 5.4 | 50 | 85 | 75 | 85 |
| Zoo / Wildlife Organization | 26.4 | 56 | 90 | 0 | 100 |
| County Event Venue | 9.7 | 66 | 86 | 75 | 100 |
| Business / News Publication | 5.3 | 55 | 89 | 50 | 92 |
| Music Festival | 22.7 | 40 | 68 | 54 | 85 |
| Performing Arts Organization | 7.7 | 61 | 88 | 54 | 85 |
| Chamber of Commerce | 23.4 | 62 | 90 | 57 | 85 |
| Tourism Organization | 12.4 | 56 | 85 | 61 | 77 |
| Chamber of Commerce | 10.1 | 60 | 92 | 96 | 85 |
| Chamber of Commerce | 9.7 | 61 | 93 | 93 | 92 |
| Housing Authority / Government | 5.8 | 63 | 86 | 75 | 77 |
| Theater Organization | 14.0 | 69 | 93 | 75 | 92 |
| Ski Resort / Recreation | 7.7 | 64 | 81 | 57 | 92 |
| Regional Performing Arts Event | 6.0 | 67 | 93 | 96 | 77 |
| State Government Site | 17.6 | 57 | 88 | 96 | 85 |
| Government Commission | 5.0 | 75 | 96 | 75 | 92 |
| State Tax Agency | 9.0 | 60 | 100 | 75 | 100 |
| State Law Enforcement Agency | 20.2 | 59 | 90 | 100 | 92 |
Note: Measurements were captured on March 9, 2026 using automated Lighthouse mobile performance audits. Because websites are regularly updated and optimized, these numbers may change over time. The results represent a snapshot at the time of testing and are intended for illustrative and research purposes only, not as a permanent assessment of any individual organization.
What Largest Contentful Paint Means
Largest Contentful Paint, commonly abbreviated as LCP, is a web performance measurement used by Google to estimate how quickly the main content of a page becomes visible to a visitor.
In simple terms, LCP measures how long it takes for the largest visible element on a page to appear. This is often a large image, banner, headline block, or main content section that a user immediately sees when the page begins loading.
From a visitor's perspective, LCP is meant to approximate the moment when a page feels like it has loaded. If the main content appears quickly, users tend to stay and interact with the site. If it takes several seconds before the page looks usable, many visitors assume the site is slow and leave.
Google considers an LCP time of 2.5 seconds or faster to represent a good mobile experience. Pages that take significantly longer than this threshold often produce higher bounce rates and lower engagement from visitors.
Because it reflects the moment when meaningful content becomes visible, LCP has become one of the most widely used metrics for evaluating real-world website performance. For this reason, it was used as the primary measurement in this analysis.
Methodology
The study analyzed 50 Idaho based websites using automated Lighthouse performance testing focused on mobile device simulations. Metrics evaluated included Largest Contentful Paint, performance score, accessibility, best practices, and SEO signals.
The analysis focused on how quickly meaningful page content appears for mobile users, which is one of the strongest indicators of perceived page speed.
While individual results varied across sites, the aggregated findings point to a broader pattern of slow mobile performance among many locally operated websites.
Conclusion
The findings from this analysis suggest that mobile performance remains a significant challenge for many organizations operating websites in Idaho. While some sites performed well in the testing, a large number showed load times far above modern performance guidelines.
In an environment where most consumers now search for services, restaurants, healthcare providers, and local businesses directly from their phones, slow mobile performance can translate into lost opportunities.
Visitors who encounter slow pages frequently leave before engaging with the content, often returning to search results and choosing a different provider.
For Idaho businesses and organizations, the takeaway is straightforward: mobile website performance has become a critical part of digital competitiveness. Sites that load quickly not only provide a better experience for users but are also more likely to retain visitors, generate leads, and perform well in search results.
As consumer expectations continue to rise, improving mobile website speed may represent one of the most impactful upgrades many organizations can make to their online presence.