We have quite a few feature announcements to bring you this holiday season. We’ve added support for several features, some of which have been requested for years like IPv6, SSL, and scheduled tasks (AKA cron jobs). We’ve also introduced new billing options that make our service pricing fairer and more scalable; these options will help a broad variety of our members save money.



IPv6 support for hosted sites

We’ve added IPv6 support for hosted sites. Just select the “Manage IPv6” action from the site info panel and enable it. Each site that enables IPv6 is currently assigned a unique IPv6 address. There is no extra cost for IPv6.

IPv6 isn’t fully deployed on the Internet yet, and consumer ISPs are the worst laggards, so IPv6 isn’t enabled by default and you may want to consider whether it’s right for you. More info is available in our UI.

SSL support

We always said that we would focus on SSL support as soon as IPv6 was done. And that’s just what we did. SSL support is now available in two forms.

First, you can obtain (or generate) an SSL certificate for any alias on your site, upload the certificate, the key, and the chain file (if applicable) to your site, and then request SSL be enabled for that alias through our UI. This is a great option if you want to secure traffic to your site for all visitors.

Second, generic support for securing the (shortname).nfshost.com alias of each site is available without the need for your own certificate. Use of this option is also requested through our UI, but it’s our domain name, so its use is subject to our pre-approval. (For example, we won’t be approving any sites with names like “securebanklogin.”) This option is good if you just want to administer your site through a web UI securely.

Our SSL implementation depends on the SNI feature of the TLS standard, which is now available in all modern browsers, so we are comfortable deploying it. SSL currently does not have any extra cost associated while it retains experimental status. It may get a nominal fee in the future to cover the added CPU cost of encryption once we get a better idea about how tightly we can pack certificates without causing problems.

Scheduled tasks

We’ve added the long-requested ability to run scheduled tasks on specific sites at regular intervals. Great for processing log files or refreshing content, scheduled tasks can be set to run hourly, daily, weekly, or monthly. There’s currently no extra charge for this feature, but we’ll keep an eye on the resources it uses.

Storage discounts and resource-based billing

Most people (including us) will acknowledge that for a long time, the greatest flaw of our service is that it bills a large amount of the cost based on how much disk space a site uses. This charge then pays for all the CPU and RAM it takes to host sites. This works well enough in terms of covering our costs, but forces sites that are very large to subsidize sites that are very small but resource-intensive. That’s not fair, so we’ve made two changes.

First, we’ve cut the storage charge for static sites, which by definition use few resources. Our published rate is $0.01 per megabyte per month, but with this change, static sites are now charged at $0.01 per 5 megabytes per month. That’s an automatic across-the-board 80% cut for all static sites.

Second, we’ve introduced a new option for dynamic sites called “stochastic billing.” If selected, this option cuts the storage costs for dynamic sites by 90% to $0.01 per 10 megabytes per month. In its place, it divides sites into groups and once per minute, selects a web request at random and bills the associated site for the resource usage attributed to that group. The likelihood of a given request being selected is proportional to the resources it uses, so over time the random sample converges to a very accurate representation of which sites are using which resources, and everyone who participates is billed fairly for the share of resources they used with a very high degree of accuracy.

We’ve set the pricing for stochastic billing in such a way that if everybody switched tomorrow, our bottom line wouldn’t change at all, so this is not a price increase. Most people will actually pay less. Sites that use above-average resources — the ones subsidized under the current plan by sites that use tons of disk space — will naturally cost more if they switch over. But we don’t plan to force anyone to switch. Instead, we intend to preserve both options and allocate to each the hardware resources it is paying for. Over the long term, we expect resource-heavy sites on the old plan will find fewer and fewer disk-heavy sites willing to subsidize them, which may lead them to resource shortages way down the road if they choose not to migrate and pay their own way. But we don’t anticipate any dramatic changes in the short term.

More information about this is available in our FAQ and our forum, and the option is available by changing your site’s server type in our member UI.

In the coming days, we’ll be adding a $0.01/10MiB/month + stochastic billing option for static sites as well. That’ll be better than the $0.01/5MiB/month plan for most but not all static sites, and we understand some people won’t want anything to do with a billing scheme with a random element, so it will be optional.

Bulk bandwidth option

One of the things we do that’s a little unusual is that we demand very high quality bandwidth for our member sites; there are a number of lower-priced providers commonly used by web hosts for connectivity that we don’t consider good enough. A consequence of this is that the bandwidth costs we pay are relatively expensive compared to some of our competitors of a similar size, and of course we pass that along. We feel it’s well worth it.

At the same time, we have wound up connecting to cheaper providers from time to time. This is not to serve member sites, but rather because cheaper providers — combined with clever routing and network management — can be a good way for us to soak off huge surges of incoming traffic associated with DDOS attacks without affecting the rest of our network. However, even though the bandwidth offered by these providers is relatively cheap, DDOS attacks consume a lot of it, and the more of it we have, the more resilient we are, so the overall bill is not trivial. And at the same time, DDOS attacks generate only inbound traffic, so we’re only using the inbound half of those connections (and then only when we’re being attacked).

So, we’ve got a bunch of unused outbound capacity. We’ve made the decision internally that the price/quality tradeoff is not worth using those connections for our regular traffic, but we respect that not everyone’s site is the same and that in light of the pretty significant cost difference, some people might prefer to make that decision for themselves.

As a result, we’re offering a new class of “bulk” bandwidth that will use our excess outbound capacity on a per-site basis. Instead of being priced per byte transferred like our regular offering, bulk bandwidth is priced per megabit per second (Mbps) per month. You select the amount you want and then pay $5.00/Mbps/mo. (But like most of the rest of our services, it is charged one penny at a time and can be added or removed at any time.) Your actual usage is unmetered. It’s also burst-able, meaning it groups sites together and if another site in the group isn’t using its share at any given moment, your site can borrow it at no extra charge.

Bulk bandwidth is typically best suited to sites that steadily use a lot of bandwidth, for example to distribute large files to the general public. Our regular bandwidth plan will still generally provide higher per-connection speeds, better routing and resiliency, and probably slightly better latency.

To determine if bulk bandwidth is right for a site, first figure out if it’s currently spending less than $5.00/mo on bandwidth under our standard plan. If it is, bulk bandwidth is a bad deal: pay more, get less. But if a site’s bandwidth costs more than $5.00/mo, the answer is maybe. Next, you would look at the nature of the site. If the priority is to deliver the most overall bandwidth per dollar, then bulk bandwidth might be a good choice. If the priority is to provide the fastest individual downloads, or if the site has significant interactive elements — particularly stuff like AJAX — it’s better to stick with the standard plan.

In short, the bulk bandwidth option is the freight truck to our standard plan’s sportscar. Both can move a lot of data very quickly, but in very different ways.

Final thoughts

Whew. Densest. Blog post. Ever.

If you follow our Twitter feed, you already know about these updates. But judging by the follower numbers, most people don’t, so we thought we’d mention it.

We think these changes are huge. They address a lot of the pain points that many of our members have been feeling for a long time, both in terms of features and cost. And they represent a mountain of work, especially these past few weeks to carry them over the finish line in time for Christmas.

Going forward, the biggest question will probably be about PHP 5.4. That’s the big one we weren’t able to make happen in time for this announcement. It remains available in Flex mode if you select the 2011Q4 realm, but 5.4 removes safe_mode support and hence there won’t be a “PHP 5.4 Fast.” Instead, “PHP 5.4 Full” is coming, which combines a lot of the best features of Flex (consistent paths, ability to execute external programs) with performance comparable to existing Fast sites. That’s our top feature development priority, and we’re keeping a close eye on the March 2013 timeframe that the PHP developers have announced for phasing out non-critical updates to PHP 5.3, but we can’t offer an ETA at this time. We also have some internal maintenance to do to keep things running smoothly and fix bugs.

Thanks everyone! We never lose sight that our incredible members make our service not just possible but everything it is. (And I allow myself a bit of a smug grin, secure in the knowledge that we have the hands-down smartest member base of any web host, which is the only reason we have the courage to do something as exotic as stochastic billing.)

(Updated 2012-12-26 to reflect that *.nfshost.com no longer uses a self-signed certificate for SSL.)

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