What are the best international SEO tips?

Essentially, best practice is to implement "Geotargeting"

Therefore, you will need to provide content that targets any of your target regions and languages.

Make sure each region being targeted is reflected by language, time zone and currency

Have in place IP addresses for each region if possible

Link to local content for each targeted region

Use local resources for link building

Connect with local search engines

You might need to use sub-domains for each region

Have your domain ccTLD

Implement Hreflang

Apply normal on-page SEO on every subdomain and build backlinks equally.

Use a sitemap to inform search engines about the hierarchy and taxonomy of your site

Lastly, you will a full-fledged research and analysis to understand the best way to target your chosen markets and personae.

Hope it helps.

Some of the quick and brief tips to follow:

1) Research good keywords and phrases for your business / website.

2) Target region for your business and audience, then prepare your website content accordingly.

3) Spend time on technical audit for your website AKA On-Page SEO and focus on:

• XML Sitemaps
• Content plagiarism check
• Keyword Density
• Meta Tags (No spam and stuffing please)
• Robots.txt
• Website Load time
• Responsive Version of website
• Google Webmaster Integration.

Then have your website crawled fresh from Google and see ranking updates. According to that search good niche relevant links and build links. Remember quality links and no link boosts. Since no automated processes and low quality is tolerated by Penguin these days.