If you are reading this article you probably already know it, but I remind you that SEO is the set of all the activities aimed at optimizing a site to improve its visibility on search engines .
SEO is therefore a fundamental activity to have constant traffic on your site, possibly linked to strategic keywords for your business.
This, if your site is optimized for conversions, allows you to have a stable thailand mobile phone numbers database and continuous flow of sales, consultations, requests for quotes depending on the type of business and market you are in.
SEO has changed a lot over the years, as the internet has changed and search engine algorithms have improved.
To understand the importance of being visible on search engines for a website, you just need to know that 81% of users make a purchase after carrying out an internet search .
An SEO specialist is the professional figure who knows the tools, techniques and strategies that can improve SEO and therefore the visibility of a site on search engines. This translates into more visitors, more authority and more sales.
Today, in fact, organic traffic (traffic that comes from search) is still the most important source of visitors in most cases, therefore a fundamental channel for being found and obtaining new customers.
An SEO specialist must have a good knowledge of marketing, the most used technologies on the Internet and must be constantly updated on the evolution of search engine algorithms.
What does an SEO specialist do?
Broadly speaking, the areas of intervention of the SEO specialist are off-site SEO and on-site SEO .
On-site SEO refers to all the activities that are done directly on the site to improve its indexing.
Off-site SEO refers to all the activities that an SEO specialist does outside the site, especially earning backlinks (incoming links to the site) from other sites that enjoy a high ranking.
Check the health of your site with a site audit
The first thing an SEO specialist does is check the health of your site from a technical point of view. This action is called a site audit and provides information relating to some fundamental technical aspects such as:
site speed
presence and correct length of the meta descriptionin the pages
presence and correct length of titles in the pages (tag title)
internal link structure
correct weight of pages (in bytes) and images
correct use of attributes alt textfor images
To do these activities you can use either manual analysis or specific tools.
The best ones around are:
ahrefs.com
screamingfrog
SEMrush
SEOZoom
Below you can see a series of screenshots from an analysis performed with Ahrefs.

Intervenes to solve technical problems on your site
Once the audit is completed, the SEO specialist intervenes directly or gives instructions to the technical staff to resolve the problems found.
Speed issues, a characteristic that has a strong correlation with your site's position in search engine results (SERP), can be linked to:
inadequate hosting;
an architectural problem of the site;
an obsolete or misused technology.
Depending on the complexity of your site, improving performance can be a more or less long and demanding job.
If the problems are related to the markup (the code with which the pages of your site are written), in this case the solution is simple: you need to intervene on the pages and articles and modify the texts according to the standards.
For example, the most important title of the page should have the html tag h1, while the secondary ones should have the h2, h3and so on according to the text hierarchy.
If there is a problem of lack of internal links or a structure that is not coherent and clear, then the work will be mainly editorial. In this case, the interlocutor is the one who deals with the editing of the contents.