Saihajpreet Singh

Saihajpreet Singh

Co-Founder, Lighthouse Local

Saihajpreet is a full-stack engineer and technical leader with deep expertise in scalable platforms, API infrastructure, and developer tooling. His career spans founding engineering roles at high-growth startups, open-source leadership within the GraphQL ecosystem, and site reliability work powering products used by millions. At Lighthouse Local, Saihajpreet leads engineering, building the platform that tracks whether ChatGPT, Gemini, Claude, Perplexity, and Google AI recommend local businesses, and turns every visibility gap into a plain-English fix.

Articles by Saihajpreet Singh.

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A sitemap health dashboard for Ridgeline Roofing showing fourteen URLs discovered, twelve indexed, zero errors, and a Success status

Do You Need an XML Sitemap? What It Does for Your SEO in 2026

An XML sitemap is the page list you hand search engines. Here's what Google reads in it, what it ignores, whether a local business site needs one, and how to check yours in two minutes.

Saihajpreet Singh
Saihajpreet SinghSep 4, 20269 min read
Guides
A dashboard ranking the sources AI assistants cite when recommending local businesses, Google and Yelp far ahead of a short tail of directories

Where AI Gets Its Data About Your Local Business (2026)

Nearly 2 million logged citations show exactly where AI assistants pull local business facts from. The list is shorter than you'd guess, and you can claim every spot on it.

Saihajpreet Singh
Saihajpreet SinghSep 2, 202613 min read
AI Visibility
A dark card showing a 4.9 star rating with 213 reviews beside a snippet of AggregateRating JSON-LD code

AggregateRating Schema, and Why Your Star Ratings Might Not Show

AggregateRating is the schema that puts your star rating in code machines can read. Here's how it works, the reason your own stars often won't show in Google search, and how to write one that holds up.

Saihajpreet Singh
Saihajpreet SinghAug 30, 20267 min read
Local SEO
A website performance dashboard showing a 92 score with speed metrics like Total Blocking Time and Largest Contentful Paint, trending up

Core Web Vitals in Plain English, and How to Improve Yours

Someone told you your site "fails Core Web Vitals" and it sounded like a foreign language. Here's what LCP, INP, and CLS actually mean, how to measure them in Chrome, and how to fix them with AI.

Saihajpreet Singh
Saihajpreet SinghAug 27, 20268 min read
Guides
A Structured Data dashboard showing a LocalBusiness entity marked valid, with green checks on its detected name, address, phone, hours, and rating

What Is Local Schema Markup, and How Do You Add It?

A few lines of code can tell Google and AI exactly what your business is, where it works, and when it's open, no guessing required. Here's how local schema markup works, and how to add it in one sitting.

Saihajpreet Singh
Saihajpreet SinghAug 26, 20267 min read
Local SEO
A browser at lighthouselocal.ai/llms.txt showing the short markdown file, a heading, a one-line summary, and a Pages list, marked readable by AI

What Is an llms.txt File, and Do You Need One?

More AI models read your site before they recommend anyone. An llms.txt file hands them a clean summary instead of your raw code. Here's what it is, whether you need one, and where it goes.

Saihajpreet Singh
Saihajpreet SinghAug 26, 20266 min read
Guides
The Lighthouse Local dashboard showing where AI platforms mention a business

How to Get Your Business Recommended by AI

When a customer asks AI for a business like yours, only a few names come up. Here's how AI decides who to recommend, how to check where you stand, and what to fix to get named more often.

Saihajpreet Singh
Saihajpreet SinghAug 25, 20267 min read
AI Visibility
The Lighthouse Local dashboard showing off-site reputation across reviews and profiles

How Reviews Shape AI Recommendations

The assistants that recommend businesses lean heavily on your reviews, how many, how recent, how good, and what they say. Here's how reviews feed AI recommendations, and how to make yours work harder.

Saihajpreet Singh
Saihajpreet SinghAug 12, 20266 min read
Local SEO