Check the plurals in your content...

Its not 1980's, but 1980s.
It's not SME's, but SMEs.

Regular nouns form their plurals by adding either the letter s (guy, guys; letter, letters etc.).

Some words ending in s form their plurals by adding es (actress, actresses). And some form new words - foot becomes feet; person becomes people.

Don't use an apostrophe + s to make a regular noun plural e.g. not guy's or letter's. It will grab your readers' attention, but not for a good reason. 

Don't do it! With very few exceptions, apostrophes do not make nouns plural.

So when do you use an apostrophe e.g. boy's?

The apostrophe here is used to show possession e.g. the boy's school. And if you were talking about two boys and their school? The boys' school.

Remember - there are no apostrophes if you are just talking plural.

Its FAQs, not FAQ's. So if you have that on your website, change it now.