Modify Header Value (HTTP Headers) VS Sightivo

Sightivo is an SEO and AI visibility platform for startups that finds and prioritizes the places where they should get mentioned — built for founders, solopreneurs and small marketing teams. Sightivo recommends the opportunities that matter most, ranked by fit, unlike large SEO suites that just give you long lists of sites that mention your competitors.

Start with just your website and Sightivo maps your market, then gives you four ways to get mentioned: get listed on directories with pre-filled submissions, reach out to authors of listicles you belong in with a pitch drafted from their article, answer live threads where your buyers are asking, and publish content targeting keyword gaps your competitors miss.

Sightivo drafts outreach with full context, and enriches contacts with verified emails, LinkedIn profiles and Twitter handles. It also covers the basics: AI visibility tracking across ChatGPT and Claude, keyword and rank tracking, competitor share of voice, backlinks and citations, directory listings, and an outreach CRM.

Questions & Answers

As answered by people managing Modify Header Value (HTTP Headers) and Sightivo.

What makes your product unique?

Sightivo's answer:

Sightivo covers both halves of getting found: classic SEO signals and AI answer visibility, tracked against the same set of prompts and keywords. Instead of only reporting where you stand, it finds the specific directories, listicles and communities that shape those answers and hands you the ranked list of places worth pursuing.

Why should a person choose your product over its competitors?

Sightivo's answer:

AI-visibility tools stop at measurement — they tell you which answers mention you and leave the next step to you. Sightivo turns each gap into a concrete opportunity with the page, the contact route and the prepared submission details, so a founder without an agency can act on it the same day.

How would you describe the primary audience of your product?

Sightivo's answer:

Founders, solopreneurs and small marketing teams doing their own SEO and visibility work — bootstrapped startups that can't justify agency fees or enterprise SEO tools but still need to be found in search and in AI answers.

What's the story behind your product?

Sightivo's answer:

It started from understanding how founders build amazing products that people can't find, and wanting to solution around that.

Social recommendations and mentions

Based on our record, Modify Header Value (HTTP Headers) seems to be more popular. It has been mentiond 4 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Modify Header Value (HTTP Headers) mentions (4)

Reddit on desktop also died.
Yep that started recently. I found a solution with the add-on Modify Header Value (HTTP Headers) , you need to add two rules:. Source: about 3 years ago
On PC, reddit started constantly showing me a banner to install the app when opening reddit-hosted images
Going off of what a user said in the comments of another post complaining about this, you can get the old behaviour back by modifying the request headings. I've managed to do this using a Chrome extensions called Modify Header Value (HTTP Headers) (it's also available on Firefox, Opera, and Edge) and added a rule with the following parameters. Source: over 3 years ago
[Feature Request] User-Switcher for Android Firefox (Read post..)
To change user agent on fenix (nighlty ,using custom collection )I use https://mybrowseraddon.com/modify-header-value.html It can also modify other header parameters . Source: over 4 years ago
Block mobile sites and elements and load normal full desktop sites instead?
I ve had same problem as you if u use fenix u can solve it by using nightly and change userAgent in about:config (general.useragent.override) or install https://mybrowseraddon.com/modify-header-value.html (Modify Header Value (HTTP Headers) and change user agent per site basis. Source: over 4 years ago

Sightivo mentions (0)

We have not tracked any mentions of Sightivo yet. Tracking of Sightivo recommendations started around Jul 2026.

What are some alternatives?

When comparing Modify Header Value (HTTP Headers) and Sightivo, you can also consider the following products

Sky Live HTTP Headers - Sky Live HTTP Headers is an open-source browser extension that visually displays HTTP requests and response headers from every website you visit.

SEMRush - All-in-one Marketing Toolkit for digital marketing professionals.

WebSniffer - WebSniffer is an online tool to outlook HTTP request and response headers.

Moz - Backed by industry-leading data and the largest community of SEOs on the planet, Moz builds tools that make inbound marketing easy.

HTTP-Repeater (HTTP/s Live Headers) (Beta) - HTTP-Repeater (HTTP/s Live Headers) (Beta) is a browser extension that lets you capture browser requests and repeat the process in a loop automatically.

Ahrefs - Ahrefs is a toolset for SEO and marketing. We have tools for backlink research, organic traffic research, keyword research, content marketing & more. Give Ahrefs a try!

Compare Modify Header Value (HTTP Headers) VS Sightivo and see what are their differences