SPF is short for “Sun Protection Factor”, a scale of measurement that determines how effective the sunscreen is and refers to how well it performs in providing protection from both ultraviolet A (UVA) and ultraviolet B (UVB) rays. Protecting the skin from both types of ultraviolet radiation ...
The SPF is no more than a code with strongly limited significance for the user. We suggest not using SPF information; A simple classification would be preferable, based on a standardised in vitro procedure factoring the stability of the applied product and the UVA protective function as weel.H...
To prep you for a protected summer season, we’ve got the lowdown on common sunscreen questions. If you’ve ever stood in the sunscreen aisle wondering, “What does SPF mean?” or “How does sunscreen work?” If so, it’s time to get schooled on the basics. You may be surprised to...
SPF refers to the amount of UV radiation it takes to produce sunburn when wearing sunscreen in comparison to how much UV exposure it takes for unprotected skin to get sunburned. But, contrary to popular belief, SPF does not tell you how long you can stay in the sun without getting burned....
1. How Does Sender Policy Framework (SPF) Work? In order to understand how SPF works, consider the following example. Imagine that your business domain ismyhomebusiness.com. You send emails to your clients and subscribers fromnewsletter@myhomebusiness.com. ...
There are so many different types, and so many SPF levels — what do they all even mean? SheKnows spoke to Dr. William Wooden, director of operative services at Indiana University Health, to get the skinny on everything on your sunscreen bottle so you can get into the sun with as much...
How I have dreamt, feared, prepared for, worried over this day in your life and mine. A milestone of the highest order. Graduation. It really does go as fast as they say it does. Are we ready? Are you? Am I? This parenting gig has beenso.much.harderthan I expected. While trying...
So what does this all mean? Even if your delivery rate looks healthy—you see few bounces, and most of your emails are being delivered—it’s still possible that your emails never make it to the inbox. Many marketers conflate delivery rate and deliverability because mailbox providers often te...
What does this mean? Either SPF (written in your SPF record within your domain’s DNS) or DKIM (the domain name signed with your DKIM signature) have to be the same as the domain in the From header address. However, many would argue that the best practice is to try to align with bo...
An SPF record is a DNS TXT record containing a list of all the authorized mail servers for your website. Learn how to use SPF records here.