Custom-Built Business Websites Go Without SSL Up to 16 Times as Often as WordPress Sites

Custom-built law firm websites have no SSL certificate 5% of the time, more than 16 times the 0.3% of law firm websites on WordPress, and across six industries not one website built on Wix is without a certificate. Plumbing websites are the most likely to go without, at 3.3%, nearly twice the 1.8% of restaurant websites.

No SSL certificate by industry

Plumbing

3.3%

Nonprofit

3.1%

Church

Law firm

2.9%

All business websites

2.4%

Dental

2.1%

Restaurant

1.8%

Source: Suff Digital analysis of US plumbing, dental, law firm, restaurant, church and nonprofit websites, compared with 26,636 business websites · websites listed on US Google Business Profiles, September 2026

Custom-built or other platforms by industry

Nonprofit

6.1%

Plumbing

Law firm

Dental

4.3%

Church

3.8%

Restaurant

1.7%

Custom-built or other platforms by industry

Restaurant

51.7%

Church

44.2%

Plumbing

42.3%

Dental

35.2%

Law firm

34.8%

Nonprofit

26%

Certificate expires within 14 days by industry

Plumbing

1.3%

Church

0.7%

All business websites

0.9%

Law firm

Nonprofit

0.3%

Dental

0.4%

Restaurant

0.4%

Let's Encrypt by industry

Church

68.8%

Nonprofit

63.2%

Law firm

62.6%

Plumbing

59.3%

Dental

54.4%

Restaurant

53.4%

Source: Custom-Built Business Websites Go Without SSL Up to 16 Times as Often as WordPress Sites - Suff Digital