Free SEO tool

Free Domain Rating checker

Check the Domain Rating (DR) of any website in one click. No sign-up, no email. Then see how it stacks up on the live DR leaderboard of SaaS, startup, and AI tool sites listed on AZN8.

Ratings from Domain Rating by Ahrefs, cached for 24 hours.

guessto.org

You're checking a lot of domains. Wait a minute and try again.

Domain Rating leaderboard

Updated

Every live product on AZN8, ranked by the Domain Rating of its website. Ratings refresh daily. Listing is free, with a followed link and no badge required, so you can add your product and track your DR here.

RankProductDR
1
Real Estate Agent AI Prompt Pack

50+ ready-to-use AI prompts for listing descriptions, emails, and social posts. Fair Housing safe.

DR 97
2
Ad Studio

Your AI creative team for ecommerce ads

DR 92
3
Cash Tools Digital Packs

Digital packs for indie makers — ship faster, get paid, launch.

DR 91
4
Architecture Client Intake Kit

Client intake kit for small architecture, interior, and ArchViz studios: questionnaire, scope checklist, Forms + Sheets tracker, and follow-up templates.

DR 84
5
Ant & Iren Liberty Studio

Telegram bots, parsers, websites & AI automation

DR 83
5
Zentra Foundry Apify Actors

Public-data Actors on Apify. Pay per saved record.

DR 83

▲ 1

5
ILIENKO LINKS

Free smart links for music releases

DR 83
8
Process Street

Agentic process automation platform with 5,000+ integrations for workflows and checklists

DR 79
9
Vietjet Air

Vietjet Air | Bay Là Thích Ngay

DR 77
10
Launchpadly

Weekly launch board where founders list and rank startups

DR 72
11
Dialaxy

Advanced Cloud Telephony Platform for Your Business

DR 71
11
SaaSCity

The gamified SaaS directory: launch on a live city map

DR 71

▲ 1

11
PushOwl

Email, SMS, and push marketing for Shopify

DR 71

▲ 1

14
JigsawMake

Turn any photo into a printable jigsaw puzzle, free

DR 70
14
MoireRemoval

Remove moire patterns from photos instantly with AI

DR 70
14
The WebDesign

Website Ontwikkeling, Ontwerp En Online Promotiediensten

DR 70
14
Grafterr

The award winning operating system for food & drink operators

DR 70
18
PuzzleGenio

Free printable puzzle maker for teachers & families

DR 69

▼ 1

19
Sourcey

Open registry of startup credits and agent readiness cards

DR 68

▲ 1

19
Bigjpg

AI enlargement for illustrations, anime artwork and photos

DR 68

▲ 1

21
BlooTrue

No-code website widgets: reviews from 20+ platforms on 55+ builders, free plan

DR 65

▲ 1

21
Breeze

Simple project management with built-in time tracking and AI — $9/month per user

DR 65

▼ 1

23
Youth4work

Identify, improve and showcase your talents

DR 64

▼ 1

24
Novastart

The Infinite Canvas Whiteboard OS

DR 62

▲ 1

24
VideoAny

AI Video & Image Generator | One-click AI video & image generator

DR 62

▲ 1

24
Cockatoo

A free website for your small business.

DR 62
24
Willow Voice

AI voice dictation that turns natural speech into polished text in any app.

DR 62

▲ 1

24
Kavel

Free AI video & image generator

DR 62
24
AIToolly

Best AI Tools Directory — find top AI applications.

DR 62
30
PostOnce

Crosspost to TikTok, Instagram, YouTube & more automatically

DR 61
31
PublishYourSaaS

A curated directory for SaaS, tools, games & digital products

DR 60

▲ 1

31
Silent eSIM

Privacy eSIM that never expires — no KYC, pay-as-you-go travel data

DR 60

▼ 1

31
Panorama Generator

Generate VR-ready 360° panoramas from text or photos

DR 60
34
Arvow

AI agents that help you rank on Google and get cited by AI search.

DR 59
34
MoveAdvisor

Consumer moving reviews and free moving quotes

DR 59

▼ 1

34
Teable

AI spreadsheet for business that lets teams connect data, build custom apps, and automate workflows using natural language.

DR 59

▲ 1

34
CoworkingView

Compare coworking spaces and private offices in Berlin, Madrid and Barcelona

DR 59

▲ 1

38
Shadcn Space

Extraordinary Shadcn UI blocks, components, and templates

DR 58

▲ 1

38
ProHoster

Fast and reliable hosting with DDoS protection, root access, and 24/7 support

DR 58

▼ 2

40
BatchData

Property data, skip tracing and verification APIs for real estate, plus a hosted MCP server for AI agents.

DR 57
40
SpinXO

Freemium username & gamertag generator, optional Premium AI

DR 57

▲ 1

42
LiftOff Directory

Your launch pad for what's next.

DR 56

▲ 1

42
SpecStream

The live web data engine. The most accurate web search API in the world: specstream.ai/benchmarks

DR 56

▲ 1

42
WRS AI Sales Agent

AI sales agent for online stores that knows your catalog

DR 56
42
jpgHD

AI restoration and enhancement for old and damaged photos

DR 56

▲ 1

42
VibeCodingList

Ask one clear question. Get targeted product feedback.

DR 56

▲ 1

42
Searchbug

Professional people search, phone verification, and data API services

DR 56
48
Video Extend

AI video extender that continues short clips with motion, style, and scene consistency.

DR 55
48
3D House Planner

Free 2D/3D home planner in your browser, with optional AI renders

DR 55

▲ 1

48
Mojisuu Character Counter

Count characters, words and lines in Japanese text against common limits

DR 55
51
Marketania

Website development, mobile apps, SEO and digital marketing services.

DR 54

▼ 1

51
Emailwish

Emailwish is AI-powered, done-for-you (DFY) email marketing for Shopify with a built-in CDP. AI builds flows at onboarding.

DR 54

▼ 1

51
Water Heater Age Calculator: Find build date by serial

Free water heater age calculator: decodes Bradford White, A.O. Smith and Rheem serials, compares gas, electric and tankless lifespans, runs a repair test.

DR 54
51
FintechInnovator

Best payment gateway service provider in the UAE

DR 54
55
Yeri AI

Free AI image and video generator: text to image, image to video, and an editor.

DR 53

▼ 1

55
HOL Guard

Local-first runtime firewall for AI coding agents

DR 53

▲ 1

55
Letra Cursiva

Convierte texto normal en letra cursiva lista para copiar

DR 53

▼ 1

55
WooNinjas

WooNinjas is a premier WordPress development company specialized in WooCommerce, LMS & custom devs: 10+ years, 700+ sites built, 80+ plugins developed.

DR 53
55
RedPeach

Swiss monetization platform for creators: exclusive content, private messaging and subscriptions.

DR 53

▲ 1

60
Illi Studio — lofi for a place you love

Custom lofi tracks written for one specific place: a street, a kitchen at night, a road you drive when you can't sleep.

DR 52

▲ 1

60
Robylon

AI agents that resolve customer support across email, chat, voice, and WhatsApp, and take real actions, not just answer FAQs.

DR 52
60
Audioscrape

A searchable memory of what was said, for AI agents.

DR 52

▲ 1

60
eCourtsIndia

Search any case in any Indian court, free

DR 52

▲ 1

60
ShimmerPic

Browser AI image studio for GPT Image 2.5 Flare and Sunburst, Nano Banana and Seedream. Edit with reference photos, render up to 4K, start with 15 free credits.

DR 52

▲ 1

60
Pet Age Calculator

Pet age calculator for dogs, cats, rabbits, ferrets, guinea pigs and more. Convert pet years to human years with sourced scales.

DR 52
60
French Drain Calculator

Sizes stone, pipe and filter fabric for a trench, plus fall and depth at the outlet. Imperial/metric, free, no signup.

DR 52
67
Realistimo

Bulgarian PropTech marketplace with AI search for owners, agencies, and auctions

DR 51

▲ 1

67
IndieTool

Launchpad and directory for apps built by indie founders

DR 51

▲ 3

67
Transglot

Automate product localization. Give your team an easy place to review.

DR 51

▲ 50

67
Bad Quality Image Maker

Free in-browser tool that intentionally worsens images

DR 51

▼ 1

67
EditTextImage

Edit text in images online while keeping the original font, color and perspective.

DR 51
67
Contador de Palabras

Cuenta palabras, caracteres y párrafos mientras escribes

DR 51

▲ 1

67
Happy Hippo

Happy Hippo Herbals – Premium Botanical Wellness Store

DR 51
74
Special Needs USA

Special needs resources and care matching for families in the USA

DR 50

▲ 3

74
Pay Raise Calculator

See your new pay after a raise and if it beats inflation

DR 50

▼ 1

74
tyy.ai

Discover the best AI tools list and AI tools directory.

DR 50

▲ 1

74
Hip-Hosting

Reliable hosting made simple.

DR 50

▼ 1

78
Image Describer

AI image descriptions, alt text, prompts, and OCR.

DR 49

▼ 1

78
More Good Reviews

AI reputation manager for more customer reviews

DR 49

▲ 1

78
jpgRM

Brush-based AI object removal and photo cleanup in the browser

DR 49

▲ 1

78
FQPS Academy

Online SQE1 and SQE2 preparation for aspiring solicitors in England and Wales

DR 49

▲ 1

78
EmpirioLabs AI

Low-cost AI infrastructure platform

DR 49

▼ 3

78
Qwickbridge Sync

QuickBooks Integration by Qwickbridge Sync Online Desktop Custom

DR 49

▲ 1

78
Lizely

800+ browser-local tools — files never uploaded

DR 49

▼ 1

78
AffyList

Directory of affiliate programs for SaaS and software sellers

DR 49

▲ 1

78
Dew Point Calculator: Find Out When Your Windows Will Fog

Free dew point calculator — find when windows fog from humidity and temperature.

DR 49

▼ 1

78
Venbit Intelligence

Lead and ad tracking with an AI Site Agent

DR 49

▲ 1

78
Listingbott

Submit Website To Directories with ListingBott

DR 49
78
floGPT

AI chat, voice agents, and CRM in one inbox

DR 49

▲ 6

90
Raphael AI

Raphael AI is a free AI image generator for text to image and image editing.

DR 48

▼ 1

90
StackLedge

A curated directory of automation, AI and SaaS tools

DR 48

▼ 1

90
OneLence

Find where your marketing growth really comes from

DR 48

▼ 4

90
Tailwindadmin

Open-Source React Tailwind Admin Dashboard Template with Shadcn

DR 48

▼ 1

90
LensUp Scanner

Free browser-based document scanner: turn phone photos into clean, printable PDFs, with ID-card copy and PDF tools. Files are processed on your device.

DR 48

▼ 1

90
SciFig

Create research visuals from ideas and data

DR 48

▲ 1

90
APOB AI

Create personalized AI portraits, images and videos.

DR 48

▲ 1

90
Asaary UAE

Compare prices across the UAE in one place.

DR 48

▼ 1

90
Is My Cat Overweight? Body Condition Score Checker

Free 9-point body condition checker: answer 3 questions on ribs, waist and belly for a 1–9 vet-chart score. Built for big-framed cats like Maine Coons.

DR 48

▼ 2

90
The ShopNinjas

Custom Shopify Stores & Apps That Scale with You

DR 48
90
Ham Cooking Time Calculator (USDA Minutes per Pound)

Ham cooking time calculator from the USDA table: how long to cook or reheat a ham at 325°F by type and weight, how much ham to buy, and when to start for dinner

DR 48

▼ 1

90
Image2Video

Turn any image into a smooth AI video in seconds

DR 48

▲ 2

90
Ufo.Hosting

Fast, Reliable Hosting Solutions

DR 48

▼ 1

103
Vedic Astrology Chart

Free sidereal birth charts with optional AI astrology readings

DR 47

▼ 1

103
Video Upscaler

AI video enhancement and HD or 4K upscaling

DR 47

▼ 1

103
ToolVerified

Directory of automation, AI and SaaS tools

DR 47
103
RemoveShadow

AI shadow remover for photos, portraits & documents

DR 47

▼ 1

103
Grassy Knees

Real-life kids activities near you

DR 47

▲ 1

103
Sysprobs Data

IT how-tos on VMware, Hyper-V, Windows and networking since 2008, plus free licensing and cloud cost calculators. No sign-up.

DR 47

▲ 5

103
Origami

AI sales prospecting, buying signals, and personalized outreach

DR 47
103
TBPHP Derma Pen OEM

Guangzhou manufacturer of Derma Pen / microneedling pen OEM and ODM devices and cartridges

DR 47
103
WhitelistVideo

Channel-level YouTube parental control for kids — strict whitelist, zero algorithm.

DR 47
112
API.market

API marketplace and hosted MCP gateway for developers and AI agents

DR 46

▲ 1

112
Menlo Insurance MCP

Public insurance catalog and customer-authorized quote workflow through MCP

DR 46

▲ 1

112
Sergey Kornilov

Build production-ready web apps faster with PHPRunner

DR 46

▲ 1

112
jpgHi

AI image upscaling with adjustable detail and similarity controls

DR 46

▲ 1

112
TwitterAPI.io

Twitter/X data API and hosted MCP server for developers and AI agents

DR 46

▼ 1

112
TriRank

TriRank connects Google Search Console and checks whether AI answer engines cite your site.

DR 46

▲ 20

112
GalleryDock

Online client galleries for photographers and filmmakers: photo selection, video feedback, downloads and integrated print sales.

DR 46

▼ 1

112
LyfSkills

Discover and plan activities for children in India

DR 46

▼ 1

112
Veida

Unlimited free AI image generator

DR 46

▼ 1

112
Linkjob AI

Real-time AI interview assistant with dual-device mode

DR 46
122
JobFinder AI

Your AI job-search agent: finds matching openings, completes applications, and emails hiring managers from your own inbox.

DR 45

▲ 1

122
LaraCopilot

Tagline Build Real Applications with AI, from Idea to Production

DR 45

▼ 1

122
Convertlyft Free SEO Audit

Free SEO audit, no account: crawls up to 16 pages and scores your site out of 100.

DR 45

▲ 21

122
ZLogin

Anti-detect browser for multi-accounting: isolated profiles, custom fingerprints, proxies, team sharing, window sync & RPA. Free to start.

DR 45
122
Dubai Metro Fare Calculator

Compares pay-per-trip vs nol 7/30/90/365-day passes for Silver, Gold or red ticket fares and break-even trips.

DR 45

▼ 3

122
MegaLaunch

Launch your product. Get discovered.

DR 45

▲ 5

122
Weasel.Cloud

Fast VPS/VDS worldwide

DR 45
129
TVFoodMaps

Restaurants from Diners, Drive-Ins and Dives and 50+ shows

DR 44

▼ 1

129
Linnk AI

Translate and understand documents with AI

DR 44
129
UnoRouter

Open-source LLM gateway and MCP server: one key, smart routing, failover

DR 44

▲ 1

129
OmniaKey

One API key for GPT, Claude, Gemini, image & video models

DR 44
133
DecorViz

AI furniture visualizer - see any product in your real room before you buy.

DR 43

▼ 1

133
ChangeCrab

Customer-facing changelogs and release notes for software teams

DR 43

▼ 1

133
CoinBoss

Crypto Derivatives Data

DR 43

▲ 13

133
SoftSync AI

SoftSync AI CRM / Meeting Assistant for founders and operators

DR 43

▲ 1

133
SandBase

One API key for AI models, data APIs, code sandboxes, and agents

DR 43

▲ 1

133
Apartment Cleaning Services Austin

Apartment cleaning services in Austin, TX

DR 43
133
Girikon

Salesforce Consulting Services – Business Growth Focus

DR 43
140
Tacey

Self-service order editing and address checks for Shopify

DR 42

▼ 1

140
Hook Lab — Win the First 3 Seconds

Give it a topic; get first-3-second hooks, a timed script, and a caption for TikTok, Reels and Shorts.

DR 42

▲ 2

140
JobsAICopilot

Your AI applies to jobs while you sleep.

DR 42

▼ 1

140
FindAffiliates

Find and compare high-paying affiliate programs

DR 42

▲ 1

140
Videlia

AI model videos and try-on stills from the product photos in your Shopify catalogue.

DR 42

▼ 1

140
BRCKS

The chat app for building sites

DR 42

▼ 1

140
Lyks.ai

Transform Product Images into Engaging Videos.

DR 42
140
Lighthouse Local

When customers ask AI who to hire, does it say you? Track your visibility across ChatGPT, Gemini, Claude, Perplexity and Google AI.

DR 42

▼ 1

140
AIReiter

Build image, video, and text generation with one AI API.

DR 42

▲ 1

140
Aryana Lamichhane

Enterprise search intelligence for brand visibility, share of voice, competitor benchmarking, and AI search performance.

DR 42

▼ 6

140
DEVDIY

WordPress, Shopify & mini program build notes for real shipping teams

DR 42
140
The Audio Stuff

Independent audio reviews and free calculators, including a tone generator. Free.

DR 42

▲ 1

140
Ecomwith

Free ecommerce tools and tutorials for Shopify DTC sellers

DR 42

▼ 1

140
DivvLaunches

The daily product launch platform for indie makers

DR 42

▲ 1

140
Emaki

Seedance 2.5/2.0 AI video in Japanese

DR 42

▼ 1

155
AI for Database

Ask your database. Build dashboards. Trigger workflows.

DR 41

▲ 1

155
Konversa

Professional websites with WhatsApp AI chatbot for LatAm SMBs

DR 41

▼ 1

155
SeeleAgent

Multimodal AI agent for games, images, video, 3D assets and code.

DR 41

▲ 1

155
Ecommerce Data API

Amazon research data for apps and AI agents

DR 41

▲ 1

155
FoxPhone

Isolated cloud phones your AI agents can run at scale

DR 41

▲ 1

155
Paintit.ai

Explore interior and exterior design concepts from photos, briefs and references, then refine them in chat.

DR 41

▼ 1

155
JustBlogged

Free blog hosting with your own domain

DR 41

▲ 1

155
HEIC.Best

Free online HEIC converter — JPG, PNG, PDF & viewer in your browser

DR 41

▼ 1

155
Wan 3.0

AI video generator — image to video and text to video

DR 41

▲ 1

155
MoneyCoach

Budget planner and expense tracker for iPhone, iPad and Mac

DR 41

▲ 1

165
Massvai

AI full-stack Next.js app builder

DR 40

▲ 1

165
AITraining.jobs

AI training jobs with real pay, from every platform, updated daily

DR 40

▲ 2

165
Photo Animate

Upload a photo and create lifelike motion with blinking, smiles, and gentle head movement using Photo Animate’s image-to-video AI.

DR 40

▼ 1

165
AI Agents Listing

Where AI agents earn their heat.

DR 40

▲ 1

165
Pleiades – Cocktail Journal

A cocktail journal of classic recipes, histories and bar culture

DR 40

▼ 1

165
PSL Scale

AI-powered facial attractiveness evaluation

DR 40

▲ 1

171
SendHQ

Observable email infrastructure for product teams and AI agents

DR 39

▲ 1

171
ProductShot

Freemium AI product photography — one photo to white-background hero, studio, and lifestyle shots.

DR 39

▼ 1

171
MyFundedPerps

Trade perpetuals with up to $300K

DR 39

▲ 1

171
RecycleFind

Recycling centers near you: 5,200+ US recycling centers, scrap yards and transfer stations with hours, phone numbers and accepted materials. Search by ZIP.

DR 39

▲ 4

171
Redreamality

Personal blog on AI agents and software engineering: in-depth articles, interactive visual explainers and talks.

DR 39

▲ 1

171
PetAIVideo

Turn one dog or cat photo into a short AI video, with a free preview first

DR 39

▲ 1

171
MemeRemake

One selfie into an 8-second AI meme video

DR 39

▲ 1

171
PopNow

Create AI videos, images, music and voiceovers in a browser studio.

DR 39

▲ 1

171
ArtCraft

Creative studio for images, video and 3D

DR 39

▼ 1

171
filmcraft

Free online video editor with color and audio tools

DR 39

▼ 1

171
AIGO.tools

AI tools directory organized by task, with 17,000+ profiles for writing, images, video and productivity.

DR 39

▲ 3

171
Besin Analiz Kalori Hesaplama

Ucretsiz kalori hesaplama araci

DR 39

▲ 2

171
Dot Symbol

Copy dot symbols and bullet characters in one click

DR 39

▼ 1

171
TextDet

Itineraries and signs to text; Pro translates on-phone

DR 39

▲ 1

171
Tiquo

Cloud hospitality software for bookings, POS, memberships and customer insights

DR 39

▲ 1

171
Wanderly eSIM

Travel eSIMs for 200+ countries

DR 39
187
Manhwa Translator

Manhwa Translator gives readers an AI comic reader and gives studios an online page editor.

DR 38

▲ 1

187
Ducat Protocol

Bitcoin-native credit and stablecoin protocol on Bitcoin L1.

DR 38

▼ 1

187
Layer Logix

Custom business apps and AI-assisted workflows built for growing US companies, from a team in The Woodlands, Texas.

DR 38
187
Roamify

Travel eSIM data plans you install before you fly

DR 38

▲ 1

187
Radarkit

Real-time, local AI visibility tracking for every brand

DR 38

▼ 1

187
Floatboat

Proactive agent OS that runs AI agent workflows from your calendar: prep, execute and follow up on time.

DR 38

▲ 3

187
EN-FAB Inc.

EN-FAB Inc. | Enhanced Oil Recovery & Metering Solutions | USA

DR 38
187
Wan 3.0

Wan 3.0 gives a railway museum a way to animate a black and white archive print of a steam engine, so smoke drifts from the chimney on the gallery screen.

DR 38
187
Submit Your Startup

Discover free startup directories and submit your product for free.

DR 38

▲ 1

187
TankhaPay

HR, payroll, statutory compliance and Employer of Record platform for Indian businesses

DR 38

▲ 1

187
Krátké pohádky

Short, illustrated Czech stories with age and reading-time filters

DR 38

▲ 1

187
Tisíce pohádek

Discover illustrated Czech stories, from short reads to longer adventures

DR 38

▲ 1

187
Echobell

Instant webhook & email alerts on your phone.

DR 38
187
imageat

Agentic AI photo & video generator with multi-model workflows

DR 38

Showing the top 200 of 2355 rated sites. 1 more listing is not rated yet.

Domain Rating by Ahrefs

DR 0–9

New

Few or no sites link here yet. Most new launches start in this range.

DR 10–29

Growing

A handful of referring domains. Typical for early products and side projects.

DR 30–49

Established

A solid link profile. Pages on this site can rank for competitive terms.

DR 50–100

Strong to authority

One of the most linked-to sites on the web.

What is Domain Rating?

Domain Rating (DR) is a score from 0 to 100 that Ahrefs uses to describe how strong a website's backlink profile is. It counts the unique domains linking to a site, weighs each by its own DR, and divides that link equity among all the sites it links to. The scale is logarithmic, so climbing from 70 to 80 takes far more links than from 10 to 20.

DR is not a Google ranking factor, but it tracks closely with what Google rewards: links from many independent, trusted sites. That makes it a quick way to compare your site with competitors and to judge whether a site is worth getting a link from.

How to increase your Domain Rating

DR goes up when more unique domains link to you. Ten links from ten different sites help far more than ten links from one. Practical ways to earn them as a maker:

  • List your product on free directories that give a followed link, starting with AZN8.
  • Write launch posts and share them in communities where your users are.
  • Publish integration and partner pages that the other side links back to.
  • Contribute guest posts, podcast appearances, or open source with a link home.
  • Create free tools or data that others want to cite.

Skip paid link packages and private blog networks. They can move DR briefly, but search engines discount or penalize them. Our free directory catalog lists more than a hundred verified places to submit a product for free.

Get a followed link and join the leaderboard

AZN8 is a free directory for SaaS, startups, and AI tools. Every listing gets its own page with a plain followed link to your site: no redirect, no nofollow, and no badge to put on your site. Your product shows up on this leaderboard within a day.

Frequently asked questions

What is Domain Rating (DR)?

Domain Rating is an Ahrefs metric that scores the strength of a website's backlink profile on a scale from 0 to 100. It looks at how many unique domains link to a site and how strong those linking domains are themselves. Higher means a stronger link profile.

Is this Domain Rating checker free?

Yes. Checking a domain is free, needs no account, and has no daily quota for normal use. Ratings come from the free Ahrefs Domain Rating API and are cached for 24 hours.

What is a good Domain Rating?

It depends on your competitors more than on a fixed number. As a rough guide, most new sites sit below 10, early products between 10 and 30, established SaaS brands between 30 and 70, and household names above 70. Compare yourself with the sites ranking for your keywords.

How do I increase my Domain Rating?

Earn links from more unique, relevant websites: launch posts, guest articles, integrations and partner pages, podcasts, open source, and free product directories that give a followed link. Avoid paid link schemes and private blog networks, which search engines penalize.

How does the AZN8 DR leaderboard work?

Every live listing on AZN8 is ranked by the current Domain Rating of its website. Ratings refresh every 24 hours, and new listings join the board within a day. Listing is free, so you can add your product and track its DR here.

Is Domain Rating the same as Domain Authority?

No. Domain Rating (DR) is made by Ahrefs and Domain Authority (DA) by Moz. Both estimate link strength on a 0 to 100 scale, but they use different link indexes and formulas, so the numbers for the same site usually differ.

Why can't I check a subdomain like my-app.vercel.app?

A rating for a shared host such as vercel.app, github.io, or netlify.app describes the whole platform, not your product, so those are not rated. Use your own domain for a meaningful DR.