Please note the difference between “crawling” a backlink and “indexing” a backlink. First google crawls a website with their spider bots and so google knows about the content including your backlinks. At this stage your backlink gets counted and valued. Wheather the site gets indexed or not is decided by google’s AI and depends on various factors like domain authority, content quality, content length any many many more.
Offer Details: Offer expires 9/30/2018 (midnight Pacific Time). Valid only for new and verified Bing Webmaster Tools account holders who own their own Website and open a new Microsoft Advertising account. Get 100 USD in Microsoft Advertising credits for signing up as a new Microsoft Advertising customer. A new Microsoft Advertising customer is one that has not advertised on Microsoft Advertising before. The Microsoft Advertising customer will receive a promotional code to redeem credits. Limit one (1) promotion code per new Microsoft Advertising customer. Promotional code must be redeemed within thirty (30) days of Microsoft Advertising new customer creation. Ad campaign costs accrued before receiving a credit, as well as costs accrued after all credits are used, will be charged to the payment method associated with the Microsoft Advertising account. Ads will continue to run and accrue costs after any promotional credit has been used up. Any portion of the credit not used within ninety (90) days of credit redemption will expire and can't be carried over even if the Microsoft Advertising Customer switches their payment method. Offer valid only to residents of the the United States. In order for the offer to be valid, a form of payment must be entered into your account prior to redemption of the promotional code and prior to your account going live to take advantage of the credit. This offer may not be combined with any other offer, promotional code coupon or discount, separated, redeemed for cash, transferred, sold, or bartered. Microsoft, in its sole discretion, can close your account for any suspected coupon abuse. See Microsoft Advertising Terms and Conditions for more details at sign-up. Other terms and conditions may apply.
Most often, you’ll want to use the noindex tag. You usually only want to use nofollow for affiliate links, links someone has paid you to create, or you receive a commission from. This is because you don’t want to “sell links”. When you add nofollow, it tells Google not to pass on your domain authority to those sources. Essentially, it keeps the web free of corruption when it comes to linking.