Vad är SSL Certificate?
Snabbdefinition
Ett SSL-certifikat är ett digitalt säkerhetscertifikat som krypterar data som överförs mellan en webbplats och dess besökare, indikerat av hänglåsikonen och HTTPS.
An SSL (Secure Sockets Layer) certificate creates an encrypted connection between a web server and a visitor's browser. While the technology has technically evolved to TLS (Transport Layer Security), the term "SSL certificate" is still commonly used.
When a website has an SSL certificate, all data transmitted between the user and the server is encrypted, making it unreadable to anyone who might intercept it. This protects sensitive information like login credentials, credit card numbers, personal details, and any other data submitted through forms.
SSL certificates work through a process called the "SSL handshake." When a browser connects to a secure website, the server presents its SSL certificate. The browser verifies the certificate is valid and issued by a trusted Certificate Authority (CA). Once verified, an encrypted connection is established, indicated by the padlock icon in the browser bar.
There are different types of SSL certificates. Domain Validation (DV) certificates verify domain ownership and are free through services like Let's Encrypt. Organization Validation (OV) and Extended Validation (EV) certificates require more thorough verification and provide additional trust signals. Most websites only need a DV certificate.
Varför det spelar roll
HTTPS is now a basic requirement for any website. Google has used HTTPS as a ranking signal since 2014, and modern browsers display warnings on non-HTTPS sites, with Chrome showing "Not Secure" in the address bar. This warning can scare away visitors and damage your credibility.
Beyond SEO and trust, SSL is legally required for many industries. If you collect any personal information (even just email addresses), data protection regulations like GDPR require you to protect that data with encryption.
Verkliga exempel
A small business saw a 15% drop in contact form submissions after Chrome started showing "Not Secure" warnings; adding a free Let's Encrypt SSL certificate restored submissions immediately
An e-commerce store's payment processor required SSL before they could process credit cards, making it a non-negotiable requirement for online sales
A healthcare website implemented SSL to comply with HIPAA requirements for protecting patient information submitted through appointment request forms
A blog that switched to HTTPS saw a small but measurable improvement in search rankings within weeks, consistent with Google's HTTPS ranking boost
Relaterade termer
DNS (Domain Name System)
DNS är systemet som omvandlar för människor läsbara domännamn, som example.com, till numeriska IP-adresser som datorer använder för att ansluta till servrar.
Web Hosting
Webbhosting är tjänsten som lagrar din webbplats filer på en server ansluten till internet, vilket gör din webbplats tillgänglig för besökare dygnet runt.
Technical SEO
Teknisk SEO är processen att optimera webbplatsens infrastruktur så att sökmotorer effektivt kan crawla, indexera och rendera dina sidor.
Core Web Vitals
Core Web Vitals är tre specifika mätvärden från Google som mäter verkliga användarupplevelser på webbplatser: laddningsprestanda (LCP), interaktivitet (INP) och visuell stabilitet (CLS).
Behöver du hjälp med ssl certificate?
Vårt team kan hjälpa dig att tillämpa detta koncept i praktiken. Boka en kostnadsfri konsultation för att diskutera ditt projekt.