NO. 4. DON’T HAVE TYPOGRAPHICAL, SPELLING OR GRAMMATICAL ERRORS
These are irritating at best and embarrassing at worst. Poor spelling or grammar and typos can make an otherwise polished-looking website seem amateurish and sloppy and this unfortunately can reflect on your business and leave potential customers with an uncomfortable feeling. In essence they are thinking “If they are not professional enough to get the spelling right on their own website, then why would I engage them to assist me”
In order to engage prospective customers, your content should read compellingly and professionally, and needs to showcase both your product and brand itself. Errors look unprofessional, and will detract from the authority and trustworthiness of your business.
Proof-read and spell-check everything, and then check it all again. If you lack this kind of fine attention to detail yourself (and don’t let this make you feel bad – it relates to a very particular skill-set), you may want to consider using the services of a professional copywriter, who will ensure that every word is perfect. At the very least get someone else to also look over it, as two sets of eyes are always better than one.
These kinds of glitches also have negative SEO implications. Search engines rank websites more favourably when they are free from spelling errors, thereby increasing your traffic.