Resources to find all of about domains including but not limited to Registration, Valuation & Appraisal, Traffic, Page Rank, Domain Authority (DA), Trust Flow (TF), and Citation Flow (CF).

Domain Registrars & Hostings
GoDaddy | The largest domain registration and hosting provider.
1&1 | Very popular in Europe.
NetworkSolutions | A company.

Domain Valuation & Appraisal Tools
FreeValuator | 5 free instant appraisals per day
DomainIndex | 7 free instant appraisals per day
Valuate | 20 free instant appraisals per day
EstiBot | 1 free instant appraisal per day
DomainAppraisal | Choose from $19.99, $59.99, $149.99
Sedo Appraisal | $99.00
iCheckRank | You can instantly check the website or domain’s page rank if it’s fake or not. No banner ads and no anti-bot nor reCAPTCHA code input field.

Domain Traffic & Analytics
Alexa | Leading web & domain traffic estimator and provides an analytic as well.
Clicky | One of the best web analytics and easier to use than Google Analytics.
Google Analytics | It’s from Google, no explanation needed.
SimilarWeb | Very fast loading time for showing web traffics.
Check-Domains | Complete domain/website analyzer. Shows traffic, page rank, links, stats, performance, and etc. 5 analysis requests per hour.

Google Page Rank Checker
PRChecker | No banner ads and easy to check the page rank
SmallSEOTools | The best place to check page rank for your domains in bulk.

Domain Authority (DA) and Page Authority (PA) Checker
MOZ | Domain Authority (DA) score is made by MOZ.
BulkDAChecker | You can check DA in bulk and it’s fast.
SEOReviewTools | It checks for both Domain Authority (DA) & Page Authority (PA)
99WebTools | Place where you can check Domain Authority (DA), Page Authority (PA), and Backlinks in bulk.

Trust Flow (TF) and Citation Flow (CF) Checker
Majestic | Trust Flow (TF) and Citation Flow (CF) scores are made by Majestic.
WebMasterCare | Probably the only place besides Majestic to check Trust Flow (TF) and Citation Flow (CF) for free. You can check 20 URL at once.

Domain & Website Marketplaces
Sedo | One of the best and leading domain marketplace.
DomainNameSales | Largest marketplace of premium quality domains.
GoDaddy Auctions | One of the largest marketplaces for any domains.
Flippa | Great for selling websites, domains, and apps.
Afternic | Place to sell domains through their network with top registrars.
Aftermarket | Another place to list the premium domains.
FreeMarket | A new website and domain marketplace similar to Flippa operates by Freelancer.