17% of Accounting Firm Websites Run Outdated Software vs 4.7% of Restaurant Websites

    17% of accounting firm websites run outdated software, the highest rate of 15 industries and more than three times the 4.7% of restaurant websites. In every one of the 15 industries, websites built on WordPress are out of date more often than websites on other platforms.

    Run outdated software by industry
    Accounting
    17%
    Law firm
    15.5%
    Dental
    15.4%
    SaaS
    14.9%
    Real estate
    12.7%
    Roofing
    11.4%
    Hotel
    11.2%
    HVAC
    10.5%
    Manufacturing
    10.5%
    Plumbing
    9.7%
    Medical practice
    9.7%
    Insurance
    8.6%
    Financial advisor
    6.6%
    Auto dealer
    5.3%
    Restaurant
    4.7%

    Source: Suff Digital analysis of US business websites in 15 industries, 234 to 809 per industry · websites listed on US Google Business Profiles, September 2026

    Websites on WordPress by industry
    Real estate
    26.7%
    Law firm
    50.7%
    SaaS
    36%
    Accounting
    38.8%
    Auto dealer
    12.5%
    Roofing
    46.5%
    Medical practice
    31.9%
    Hotel
    34.5%
    Plumbing
    43.3%
    Dental
    49.8%
    Manufacturing
    39.7%
    HVAC
    46.1%
    Insurance
    29.6%
    Financial advisor
    30.6%
    Restaurant
    25.6%

    Source: Suff Digital analysis of US business websites in 15 industries, 234 to 809 per industry · websites listed on US Google Business Profiles, September 2026

    WordPress older than 7.1 by industry
    Law firm
    11.3%
    Roofing
    9.3%
    Dental
    7.6%
    Accounting
    7.5%
    SaaS
    7.4%
    Plumbing
    7.2%
    HVAC
    6.8%
    Real estate
    6.4%
    Manufacturing
    5.6%
    Medical practice
    5.3%
    Hotel
    4.7%
    Insurance
    4.3%
    Financial advisor
    3.5%
    Auto dealer
    2.3%
    Restaurant
    2.1%

    Source: Suff Digital analysis of US business websites in 15 industries, 234 to 809 per industry · websites listed on US Google Business Profiles, September 2026

    Websites that show their server software by industry
    Auto dealer
    11.2%
    SaaS
    10.4%
    Real estate
    10.3%
    Medical practice
    8.8%
    Hotel
    7.2%
    Manufacturing
    6.4%
    Insurance
    5.5%
    Accounting
    5.4%
    Dental
    5.4%
    Law firm
    5.2%
    HVAC
    4.6%
    Plumbing
    4.1%
    Restaurant
    3.8%
    Roofing
    3.3%
    Financial advisor
    0.7%

    Source: Suff Digital analysis of US business websites in 15 industries, 234 to 809 per industry · websites listed on US Google Business Profiles, September 2026

    Source: 17% of Accounting Firm Websites Run Outdated Software vs 4.7% of Restaurant Websites - Suff Digital