RIP Hashtags: Why Keywords Are the New Way to Get Found On Social Media

TL;DR: Hashtags no longer drive reach on social media. Platforms like Instagram and TikTok now read your spoken words, on-screen text and captions to surface content in their search bars. To get discovered, optimise your content with real keywords your audience actually types.

Picture the scene: you’ve just spent fifteen minutes hunting down the “perfect” mix of 30 hashtags. You copy-paste them, hit publish, and wait. And wait.

Sound familiar?

Instagram CEO Adam Mosseri confirmed in 2022 that hashtags don’t meaningfully boost your reach. At best, they help “categorise” your content. So all those hours spent crafting hashtag stacks? Largely wasted effort.

Meanwhile, people have quietly changed how they find information.

According to Google Senior Vice President Prabhakar Raghavan (2022), almost 40% of young people now turn to TikTok or Instagram instead of Google when searching for something like a place to grab lunch. SOCi (2023) supports this, reporting that 34% of Gen Z use TikTok for search and discovery.

Your customers aren’t just scrolling anymore.

They’re searching.

And that changes everything about how you should post.

How do social media algorithms read your content in 2026?

Social platforms have stopped relying on a little pound sign to understand your posts. They now use clever AI to actually “watch” and “listen” to your content, three ways at once.

1. Semantic Video Search

How does semantic video search read your spoken audio?

TikTok and Instagram automatically transcribe the words you say out loud. The algorithm pays special attention to the first few seconds of your audio to work out what your video is about. If you mumble through your intro or skip straight to a trending sound with no spoken words, you’re leaving the platform to guess. And it usually guesses wrong.

2. On-Screen Optical Character Recognition

How does optical character recognition read your on-screen text?

Optical Character Recognition (OCR) is the tech that lets platforms “read” the text you put on screen. Your title cards, captions and text overlays all get scanned and used to categorise your content.
As Hootsuite notes, TikTok’s algorithm pulls signals from on-screen text, captions and even spoken words.

So that bold headline in your video? It’s doing heavy lifting.

3. Keyword-Rich Captions for NLP

Why do keyword-rich captions matter for natural language processing?

Natural language processing (NLP) reads your caption like a tiny blog post. It pulls context from your sentences, your phrasing and the words you choose. A clever one-liner might earn a chuckle, but it gives the algorithm almost nothing to work with.

A descriptive caption packed with relevant terms tells the platform exactly who should see your post.

The Step-by-step workflow for social media SEO

Here’s the new workflow for getting your social media SEO ready.

Step 1: Do your social keyword research

Type your topic straight into the TikTok or Instagram search bar and watch what pops up. The dropdown suggestions and the “Others searched for” terms are pure gold. They show you the exact phrases your audience is typing. Build your content around those.

Step 2: Script your spoken hook

Say your main keyword out loud within the first 3 seconds of your video. The auto-transcriber leans heavily on the start of your audio to categorise the whole clip. So if you’re posting about budget-friendly soup recipes, say “budget-friendly soup recipes” right at the top.

Step 3: Design for on-screen text

Add a text headline using the platform’s built-in fonts (this matters because native text gets read more reliably). Keep your primary keyword visible on screen for at least half the video so the visual processors can flag it. Bonus: it also helps the users watching with the sound off.

Step 4: Write a “mini-blog” caption

Bin the single clever sentence. Write 2 to 3 descriptive, value-packed sentences that weave in your secondary keywords naturally. Think of your caption as a chance to tell the algorithm (and your reader) exactly what you’re offering.

Step 5: Apply the 3 to 5 hashtag rule

Hashtags aren’t dead-dead; they’ve just been demoted. Use only 3 to 5 hyper-specific ones at the very end of your caption. Treat them as broad category labels like #SocialSEO or #DigitalMarketing, not as magic discovery triggers.

Quality over quantity, always.

Why should brands optimise for search intent, not algorithm hacks?

Here’s the exciting bit.

Social SEO actually levels the playing field. You don’t need to chase every trending audio at 2am or rely on sneaky growth hacks. You just need to create clear, useful content that answers the real questions people are typing into search bars.

When you optimise for intent, your content keeps working long after you post it. A well-optimised video can keep surfacing in search results for weeks or months, pulling in viewers who are actively looking for what you offer.

That’s a far better return than a hashtag stack that gets buried in twenty minutes.

Choose intent-led content if long-term discovery matters more to you than a quick, fleeting spike.

How can Starbright sharpen your social media strategy?

Keeping up with shifting algorithms is a full-time job, and you’ve already got one of those. That’s where we come in.

Starbright is a social media marketing and management agency based in Pretoria, serving businesses across South Africa.

We handle it all:

• social strategy
• content calendars
• scheduling and community management
• paid Meta ad campaigns

Algorithms change. People change. We change with them, so you don’t have to.

Let’s chat and figure out a plan tailored to your goals and budget.

Frequently asked questions

1. Who is social SEO best suited for?

Social SEO works for any business that wants to be discovered, but it’s especially powerful for local brands, service providers and product businesses whose customers actively search for solutions. If people are typing questions related to your offering into TikTok or Instagram, you should be optimising for it.

2. What are the risks of sticking with 30 hashtags per post?

The main risk is wasted time and missed reach. Since Instagram confirmed hashtags don’t boost distribution, piling on 30 of them won’t grow your audience. You’ll also miss out on the search traffic you’d capture by optimising your audio, on-screen text and captions instead.

3. How long does it take to see results from social SEO?

It varies, but optimised content tends to build momentum over weeks rather than minutes. Unlike trend-chasing posts that spike and vanish, search-optimised content can keep surfacing for months. Expect a gradual climb rather than an overnight explosion.

4. What are the best alternatives to hashtags for getting discovered?

The strongest alternatives are spoken keywords in your first few seconds, on-screen text using native fonts, and keyword-rich captions. Together, these three signals tell the algorithm exactly what your content is about, far more effectively than hashtags alone.

5. How much does a professional social SEO strategy cost?

Cost depends entirely on what you need. At Starbright, we offer packages tailored to your goals and budget rather than a one-size-fits-all price. The best move is to get in touch so we can scope a plan that fits.