For an extremely long time, adding encryption to a website was inconvenient and costly. To get that precious green lock in the URL bar (which only appears when a website is served with secure HTTP, a.k.a. HTTPS), a developer had to perform a series of arcane steps. These steps include digital certificates, signing requests, and all manner of terminology that are yet another thing to learn. This procedure was manual and painful.
Thanks to the amazing work of Let’s Encrypt, a certificate authority (CA) managed by a non-profit with large corporate backing, most of the difficulty with adding HTTPS is disappearing. Let’s Encrypt makes it possible for services like Netlify to add HTTPS to a website, trivially.
Before discussing how this feat is done and what Netlify does, let’s see why HTTPS is valuable.
“Why would I want HTTPS on my website?”
—You, just now ;)
Hopefully, the most obvious reason is that HTTPS makes your website secure. This means that the connection between the website’s servers and the client’s browser can’t be tampered with or observed. As a website creator, you avoid sleazy Internet Service Providers (ISPs) attempting to add their own advertising to your content. Or, if you live in a country with a government with a strong censorship policy, you, as a website visitor, maintain a level of privacy that’s not possible over regular HTTP. A secure connection is a boon to content producers and consumers.
Another benefit of HTTPS is speed. HTTPS is a requirement before a browser can use HTTP/2, the next version of HTTP. HTTP/2 is faster than the first version of HTTP for a variety of reasons that I won’t be covering in this post (try searching for “https faster than http” if you want to learn why it’s faster). A faster page load makes users happy!
A final benefit from HTTPS stems from Google’s preference for secure sites. Back in 2014, Google documented that it would use HTTPS as a ranking signal. I knew that this was true, but I didn’t realize the weight of this signal until I added HTTPS to this site. With a secure URL, I saw a massive jump in my website ranking. Website creators are missing some low hanging SEO if they stick with HTTP.
If you run a statically generated website, Netlify is a great fit. Whether you use Jekyll, Hugo, or some obscure tool (like I do with handroll), Netlify’s build process can accommodate your tool of choice.
How does Netlify provide HTTPS support?
All it took for me to enable HTTPS was a couple of button clicks. Before enabling HTTPS, I had to connect my domain name. This was a process I needed to do anyway, and the Netlify documentation was very solid. With my domain name connected to my Netlify deployment, I clicked a button prompting me to enable HTTP, and I was done.
Behind the scenes, Netlify contacted Let’s Encrypt using one of the CA’s automated processes. The automated process leads to an exchange that generates a TLS certificate. The certificate is what makes it possible to use HTTPS. The beautiful part about the process is that the details don’t matter to the website creator. This is a huge divergence from the past and a welcome relief.
I’m a relatively new user of Netlify’s services, but I’ve become a big fan. If you try them out, I think that you’ll find a friendly product which makes it easy to make the web a more secure (and faster!) place.
If you want to chat about this with me, I'm @mblayman on Twitter.
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Matt is the lead software engineer at Storybird.
Always eager to talk about Python and other technology topics, Matt organizes Python Frederick in Frederick, Maryland (NW of Washington D.C.) and seeks to grow software skills for people in his community.