Notice how the hook is the typical "want to know a secret" approach. That is you have to click on and watch the video to know Google's new #1 ranking factor. It's a hook to get you in. Can you resist not knowing. They're counting on your curiosity.
So resist for once. This is using a social engineering technique to manipulate you. They've sent the email. They could have just as easily said, "I thought we'd save you some time and let you know Google's new #1 ranking factor. Here it is. If you'd like to get to know us then feel free to check out our site".
Whilst it would still be spam, instead they've set the trap. Will you take the bait.
I'm reluctant to hit unsubscribe on these emails because I get a feeling that will simply let them know their email has been seen and that could get me on other mailing lists. This time I did but perhaps the best idea is to simply delete the email. If you have control at the server and can block repeat offenders at the server level before your email client receives the email, that's what I do for nuisance spammers from overseas.
Make no mistake. This is a spammer because they've used an email address I would never have provided them so they've scraped it from the internet, or their mailing list provider has.
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