What is an llms.txt file?

An llms.txt file is a small plain-text file written in Markdown and placed at the root of your website, at yourdomain.com/llms.txt. It gives AI language models a curated list of your most important pages with short descriptions. It was proposed by Jeremy Howard of Answer.AI in September 2024 and is still a community convention, not yet an official web standard.

Do AI crawlers like ChatGPT and Perplexity actually read llms.txt?

Mostly no, as of mid-2026. An Ahrefs analysis of 137,000 domains published in August 2026 found that 97 percent of llms.txt files received zero requests in May 2026, and AI retrieval bots accounted for only about 1.1 percent of the fetches that did happen. The major AI search crawlers overwhelmingly crawl your regular HTML pages instead.

Should a Plano small business bother creating one?

For most Plano small businesses, it is a low-effort nice-to-have. It takes 15 minutes to set up, costs nothing, does not hurt your SEO, and may help IDE-based coding assistants and future AI systems understand your site. But it is not a replacement for real SEO work like page speed, schema markup, and quality content.

Where does the llms.txt file go?

It goes at the root of your domain, so it is accessible at https://yourdomain.com/llms.txt. Not in a subfolder, not under www only, and it must return plain text with UTF-8 encoding. Test it by visiting the URL in a browser or running curl -I on it and confirming a 200 response.

Is llms.txt the same as robots.txt or sitemap.xml?

No. robots.txt tells crawlers what they can or cannot fetch. sitemap.xml gives search engines a machine-readable list of every URL on your site. llms.txt is a short, curated Markdown summary for AI language models, highlighting only your most important pages with human-readable descriptions.

Local Citations and NAP Consistency for Plano Small Businesses: The Plain-English Fix

At Web Designer Plano, we audit local SEO for small businesses across DFW — and the same silent problem keeps coming up. The owner has a website and a Google Business Profile, but half the listings across the web show old addresses, an outdated phone, or a slightly different business name. That's a NAP consistency problem — and it may be why a Plano small business isn't ranking in Google's local Map Pack.

What Are Local Citations and NAP Consistency?

A local citation is any online mention of your business's Name, Address, and Phone number (the "NAP") — whether or not there's a link back to your site. Citations live on Yelp, Yellow Pages, data aggregators like Data Axle and Foursquare, your Chamber of Commerce page, Facebook, Apple Maps, and dozens of niche sites you may not know exist.

NAP consistency means those three details are written the exact same way, character for character, everywhere they appear. "Suite 4," "Ste 4," and "#4" are three different addresses to Google's algorithms, even though a human reads them the same.

Why NAP Consistency Matters for Local Rankings in Plano

Google's local algorithm ranks businesses on relevance, distance, and prominence. NAP consistency touches all three but hits prominence hardest — the score for how well-established Google thinks your business is.

According to Search Engine Journal's ranking factor analysis, Google has all but confirmed local citations as a ranking signal in the Local Pack. BrightLocal's 2024 Local Search Ranking Factors study — the industry benchmark cited by practitioners — ranked NAP-related signals as roughly 16 percent of total Local Pack weight, second only to Google Business Profile itself.

Translation for a Plano plumber or dentist: if a competitor has fewer citations than you but all of theirs match, and yours are a mess, they'll usually win the Map Pack spot.

The Most Common NAP Mistakes on Small Business Sites

After running local SEO audits on Plano-area businesses, we see the same five mistakes over and over:

Business name creep. "ABC Plumbing," "ABC Plumbing LLC," and "ABC Plumbing & Drain" are three different entities to Google. Pick one and stick with it.
Address format drift. "Street" vs. "St." — "Suite" vs. "Ste" vs. "#" — "Plano, TX" vs. "Plano, Texas." Small differences add up.
Old phone numbers on old listings. The business switched to a Google Voice number three years ago, but Yellow Pages still has the old one.
Different phone on your website vs. GBP. Usually caused by a call-tracking number added later without updating listings.
Duplicate listings. Two Yelp profiles for the same business — one you claimed, one you forgot — splitting your reviews in half.

The 60-Minute NAP Cleanup for a Plano Small Business

You don't need paid software to fix this. Here's the sequence we walk clients through:

Step 1: Pick your canonical NAP (10 minutes)

Write down — in a Google Doc — the exact version you'll use everywhere:

Business name: Legal or DBA name, no city or keyword stuffing.
Address: Match USPS formatting. Pick "St" or "Street" and never mix. Decide whether suite numbers go on the same line or below.
Phone: One primary number, formatted the same way every time — typically (XXX) XXX-XXXX. If you use call-tracking, use the same tracking number on citations as on Google Business Profile.

This doc is your source of truth. Bookmark it.

Step 2: Fix your own website first (10 minutes)

Before touching directories, make sure your own site matches. Check the footer, contact page, location pages, and the JSON-LD schema markup (the structured data Google reads). If your Plano web design shows one phone in the header and another in the schema, no directory fix will save you.

Step 3: Audit the big five plus Google (20 minutes)

Search your business name on each of these and compare the NAP to your canonical version:

Google Business Profile (biggest impact by far)
Apple Business Connect (Apple Maps + Siri)
Bing Places
Facebook Business Page
Yelp
Better Business Bureau (if applicable)

Flag every mismatch and edit each listing directly. Most edits are self-serve and instant.

Step 4: Search your phone number in quotes (10 minutes)

In Google, type your phone number in quotes: "(972) 555-1234". Every result is a citation. This finds directories you forgot — old blog mentions, dormant profiles, a 2019 Chamber page with an outdated business name.

Step 5: Submit to data aggregators (10 minutes)

Data Axle, Foursquare, and Neustar Localeze feed hundreds of smaller directories. Correct your NAP with each once and the fix propagates over 60–90 days. Save these for last since updates take weeks to flow through.

Building New Citations After the Cleanup

Once existing citations are consistent, add new ones on trusted, locally relevant sources. The highest-value DFW additions are usually:

Your Plano Chamber of Commerce and any regional chamber you belong to (Frisco, Allen, McKinney, Richardson).
Industry-specific directories — Houzz for contractors, Avvo for lawyers, Healthgrades for medical, HomeAdvisor/Angi for trades.
Local news sites and neighborhood blogs that publish business roundups.
Your local BNI or industry association member directory.

Ten consistent citations on trusted sites outperform 100 sloppy ones. Your Google Business Profile setup should stay locked to the same canonical NAP throughout — it's the single most important listing.

How Often to Audit

Listings drift — a directory pulls stale data, an employee updates Yelp with a typo, a data broker resurrects your old address. Plan a quarterly quick audit: 20 minutes every three months to re-search your name and phone in Google. If you move or change numbers, do a full one-hour cleanup the same day.

Frequently Asked Questions

Does NAP consistency still matter with Google Business Profile so dominant?

Yes. GBP is the biggest local signal, but Google validates its data by cross-referencing your citations across the web. When 40 trusted sites match your GBP, Google's confidence — and your rankings — go up. When they don't, both drop.

Do I need to pay for BrightLocal, Yext, or Moz Local?

For most Plano small businesses, no. A manual audit of the top 10–20 listings plus quarterly re-checks handles 80 percent of the value. Paid tools save time if you have multiple locations or dozens of legacy citations.

What if my address changed — do I have to fix every old listing?

Start with the top tier: Google Business Profile, Apple, Bing, Facebook, Yelp, BBB, and your Chamber. Then submit the update to the three data aggregators, which push the fix to hundreds of smaller sites over 60–90 days.

Is a call-tracking number bad for NAP consistency?

Not if you use it consistently. Whatever number appears on Google Business Profile must be the same on every citation. Never use one number on GBP and a different one on Yelp.

Need help auditing and cleaning up your local citations without spending weeks on it? Web Designer Plano builds fast, SEO-ready websites for small businesses across Plano, Frisco, Allen, McKinney and the rest of DFW. We handle the technical side — local SEO audits, schema markup, and citation cleanup — so you can focus on running your business.