A How question

How does an SEO company handle SSL certificates?

3 min read Cites 3 sources

By checking that your site loads securely everywhere and stays that way, while the certificate itself is issued and installed by your host or platform. An SSL/TLS certificate lets your site load over HTTPS, encrypting the connection between visitor and server. For SEO it matters in two ways: HTTPS is a ranking signal that Google described as very lightweight when it announced it in 2014, and without it browsers warn visitors away. The company’s work is verification: a valid certificate, renewal that cannot lapse, no insecure resources on secure pages, clean redirects from HTTP to HTTPS, and every internal reference pointing to the secure address.

A small signal and a basic requirement

Google’s announcement of HTTPS as a ranking signal, published in 2014, called it a “very lightweight signal”, saying it was “affecting fewer than 1% of global queries” and carried less weight than signals such as high-quality content. Its current guide to page experience lists among its self-assessment questions: “Are your pages served in a secure fashion?” A company that promises a ranking jump from installing a certificate is overstating the case. HTTPS removes a problem rather than adding an advantage.

Certificates and renewal

The certificate has to be valid, issued by a trusted certificate authority, and renewed before it expires, because an expired or misconfigured certificate makes browsers show a full-page security warning that stops visitors and can interrupt crawling. Renewal is becoming more frequent. The CA/Browser Forum, whose voting members include certificate issuers and browser makers, adopted Ballot SC-081v3, which sets a schedule to reduce the maximum validity of public TLS certificates from 398 days to 47 days, in steps starting in March 2026 and ending in March 2029. With certificates expiring that often, manual renewal becomes a risk in itself, so the company should confirm that renewal is automated and that someone is alerted if it fails.

Mixed content

A secure page that still loads images, scripts, or stylesheets over plain HTTP has mixed content. Browsers can block or downgrade those resources, which can break the layout or functions of the page and undermine its secure status. The company finds those references in templates and content and has them updated to HTTPS.

Redirects and references

Every HTTP address should redirect permanently to its matching HTTPS address, in one step, so there is one secure version of each page. Internal links, canonical tags, sitemaps, and structured data should all use the HTTPS addresses, and Search Console should be set up for the HTTPS version of the site, or as a Domain property that covers both. If the site is still moving from HTTP to HTTPS, that is a migration, with the same URL mapping and monitoring as any other.

What the host does and what the company does

Issuing, installing, and renewing the certificate sits with the hosting provider or platform, and some include certificates at no extra cost. The SEO company does not replace that work. It checks the result, catches expiry risk, mixed content, and missing redirects, and coordinates fixes with whoever manages the server.

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