What is Secure Sockets Layer (SSL)?

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What You Need to Know about Secure Sockets Layer (SSL)

HTTPS as a Ranking Factor

Google confirmed HTTPS as a ranking signal in 2014. Sites without SSL certificates face ranking disadvantages and browser warnings that hurt traffic and conversions.

Certificate Types and SEO Impact

Domain Validation (DV) certificates provide encryption for most sites. Extended Validation (EV) and Organization Validation (OV) certificates offer additional trust signals but don’t directly impact rankings.

Migration and Technical Implementation

Moving from HTTP to HTTPS requires proper 301 redirects, canonical tag updates, and Search Console verification. Implementation errors cause indexing issues and traffic loss.

Mixed Content Issues

HTTPS pages loading HTTP resources trigger browser warnings and security errors. Sites must update all internal links, images, scripts, and stylesheets to HTTPS URLs.

Performance Considerations

SSL/TLS adds minimal server overhead with modern protocols like TLS 1.3. HTTP/2 and HTTP/3 protocols, which require HTTPS, improve page speed through multiplexing and compression.

Ecommerce Security Requirements

SSL certificates are mandatory for ecommerce sites processing payments and handling customer data. Browsers display “Not Secure” warnings on HTTP checkout pages, abandoning conversions and eroding trust.


Frequently Asked Questions about Secure Sockets Layer (SSL)

1. Does SSL directly improve search rankings?

HTTPS is a confirmed ranking factor, though relatively minor. The bigger impact comes from avoiding “Not Secure” browser warnings that tank click-through rates and user trust.

2. What happens if I don’t migrate to HTTPS?

Sites without SSL face ranking disadvantages, browser security warnings, and Chrome’s “Not Secure” label. This significantly reduces organic traffic as users avoid clicking flagged results.

3. Will HTTPS migration cause traffic drops?

Properly implemented migrations maintain rankings. Traffic drops occur from redirect errors, mixed content issues, or canonicalization problems that block search engines from crawling HTTPS versions.

4. Do I need a paid SSL certificate for SEO?

Free certificates from Let’s Encrypt provide the same SEO benefits as paid options. All certificate types encrypt traffic equally; paid versions offer additional validation for user trust.


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