Social media SEO: how AI decides who finds your business

For about a decade, the way a stranger found a small business on social media was that they browsed. They scrolled a hashtag, or a feed, and you were in it. That route is mostly closed: Instagram removed hashtag following, then capped tags at five, and an AI recommendation system now decides what a scroller sees. What replaced browsing is typing. People search inside these apps, with sentences, and increasingly they ask an assistant instead. Every one of those surfaces is a model reading text, and the accounts that answer the question in plain words are the ones that get found.

This is a better world for a small business than the one it replaced, and it is worth being clear about why. Browsing rewarded volume and luck. Search rewards being the most specific correct answer to a narrow question, which is the one competitive advantage a business with four hundred followers actually has over a national brand. Nobody types "best coffee". They type "where to work from a cafe in Petrzalka with plugs".

What replaced the hashtag

Three things happened at roughly the same time, and together they moved discovery from browsing to typing. Recommendation systems got good enough to infer what a post is about from the image, the audio and the caption, which made the tag redundant as a signal. The platforms then reduced what tags could do at all, with Instagram capping captions at five hashtags from December 2025. And in parallel, a generation of users started treating the search bar in TikTok and Instagram the way their parents treated Google.

The practical consequence is that the surface you optimise changed. It used to be a block of thirty tags at the bottom of a caption, which was tedious but at least obvious. Now it is the first line of the caption, the name field on your profile, and what you say in the first ten seconds of a video. Those are all things you were writing anyway. You were just writing them for an audience that had already found you.

The four places a keyword actually does something

Most social SEO advice is a list of twenty places to put a keyword, which is how you end up with a profile that reads like a directory listing. There are four that carry real weight. The rest is decoration.

The name field deserves a paragraph of its own. It sits under your handle, most businesses fill it with the business name a second time, and it is one of the few fields on the profile that a keyword search genuinely matches against. "Melt Studio" tells the search index nothing. "Melt Studio | pilates in Kosice" tells it two things worth matching, and costs you nothing, because the only person who was searching your business name already knew how to find you.

Find the words people actually type

You are the worst possible source of the phrases your customers use, because you know the correct words for your own trade and they do not. A physiotherapist thinks in terms of "lower crossed syndrome". The person searching types "back hurts from sitting all day". Every hour spent guessing at that gap is wasted when three sources will hand you the real thing.

• TikTok's own tool. Creator Search Insights is reached by typing its name into the TikTok search bar, and it shows topics people search for, sortable by category. The part worth your attention is the content gap view: searches with high volume and few videos answering them. TikTok is telling you, in writing, what its audience wants and nobody has made.
• The autocomplete in each app. Type the first half of what you do and read the suggestions. You are reading a summary of what other people typed.
• Your own inbox and messages. The questions customers ask you by email are the questions they type into a search bar, phrased the same way. If you have answered something three times, that is a post.

That last one is the highest yield and the least used. We have written a longer piece on the general version of this problem, what a small business should actually post about, and the short version is that your ordinary work already contains the content. Social SEO just adds a filter: of the twenty things you could say this month, start with the four that someone is typing into a search bar. The professions where the gap between your vocabulary and your customer's is widest are the ones where this pays most, which is why it is the first thing we say to law firms and to dental practices.

Say it out loud, not just in the caption

Both TikTok and Instagram transcribe the speech in a video. That transcript is text about your video that you did not have to type, and it is available to be matched against a search. The implication is small and slightly annoying: you have to name the thing in the first few seconds rather than being coy about it.

A video that opens with "you will not believe what happened this morning" has told the transcript nothing. The same video opening with "this is how we repair a cracked ceramic sink" has told it everything, and lost no drama at all. If you want prompts for the first three seconds specifically, they are in our Reels prompt guide, which has a section on exactly this.

Search powers discovery on TikTok, helping people explore, learn, and dive into topics they're curious about.

That is TikTok describing its own platform in the announcement of Creator Search Insights. It is worth reading twice, because it is the company telling you which lever it built the tool for. The same announcement notes that search performance factors into its Creator Rewards Program, which is about as direct a statement of intent as a platform ever makes.

Your profile is the landing page

Search sends people to your profile, not to the post. This is the part most businesses have never thought about, because in the browsing era nobody arrived cold. Now someone types a question, sees a video that answers it, taps your name, and lands on a grid. In about four seconds they decide whether you are a real business that does the thing.

• The first sentence of the bio should contain a noun that describes what you sell. Not a value. Not a feeling.
• The location should be somewhere on the profile if you serve one, because a very large share of these searches are local.
• The top row of the grid should show the work, not three quote graphics.
• There should be a way to buy or book that takes fewer than two taps.
• If your opening hours are only in an image, they do not exist as far as any search index is concerned.

Instagram posts are web pages now too

Since 10 July 2025, public content from professional Instagram accounts has been eligible to appear in Google and other search engines, for accounts belonging to people over eighteen, with the setting on by default. It is worth checking yours is on, under account privacy, because being switched off is silent.

The strategic consequence is larger than it first sounds. A caption is no longer only a caption. It is a small page competing in ordinary web search, which means the things that have always been true of web search are now true of it: a caption that answers a real question in plain words has a route to a reader who has never heard of you and is not on Instagram to browse. Google's own guidance on this has not changed in years and applies unchanged here. It asks whether content is written by someone who demonstrably knows the topic, and it says plainly that if the reason a thing exists is to attract search visits, that is not what its systems try to reward.

The same shift is why the AI assistants have started naming small businesses at all, which is a related but separate problem we have written about in how to get your business to show up in ChatGPT. Both come down to the same thing: your words have to exist as text, in public, phrased the way somebody would ask. If you want to know whether the assistants currently say anything about you at all, there is a free checker and a manual method here.

What this does not fix

Social SEO makes you findable by people already looking for what you sell. It does nothing for demand that does not exist, and it will not rescue an account that posts twice a year. If the drafts folder is the actual blocker rather than the phrasing, what a small business should post about and turning one page into a month of posts are the two pieces that address it. Search results on these platforms are still heavily weighted by engagement and recency, so an account with nothing recent to return is not going to be returned.

It is also slower than it looks. The people selling social SEO courses show you a graph that moves in a fortnight. What we have seen, on our own accounts and our customers', is that the profile changes do something almost immediately because they are a matching problem, and the content changes take a couple of months because they are a volume problem. If you want a realistic cadence for that volume rather than the daily posting advice everyone repeats, we have argued the case for a smaller number.

The short version

• Rewrite your name field today so it contains what you do and where. It is the highest return edit on this page.
• Open captions and videos by naming the subject in plain words, then be interesting.
• Get your phrases from TikTok's search insights, from autocomplete, and from your own inbox. Not from your own vocabulary.
• Keep using three to five accurate hashtags and stop thinking about them. The reasoning is here.
• Check that public search engine visibility is switched on for your Instagram professional account.
• Be about one recognisable thing for long enough that the recognition happens.