Contentor Blog

Practical SEO, AEO and GEO guides for beginners and professionals: how Google and AI assistants find, understand and cite your site, how to buy and measure backlinks, and how to produce AI-assisted content without losing quality.

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Start here

Two reading paths, depending on where you are. Every article shows its level and points to the next step.

Explore by topic

Start with the pillar guide of each topic, then follow the related articles.

AI Search, GEO and AEO

How to get cited in Google AI Overviews, AI Mode and AI assistants: entities, schema, query fan-out and answer-first content.

See all 37 articles by level

To go deeper

Backlinks and link building

How to buy backlinks safely, what they cost, how to judge DA and DR, and how to build authority for new sites.

See all 32 articles by level

To go deeper

All articles

How to Start a Business Blog: A Step-by-Step Guide

How to Start a Business Blog: A Step-by-Step Guide

10 min read

How to start a business blog from scratch: topics, frequency, post structure, free tools, how to measure results and a 90-day plan for beginners.

Beginner
#Content
#SEO
#Beginners
AI Content Workflow With Human Review: From Draft to Published

AI Content Workflow With Human Review: From Draft to Published

9 min read

A safe AI workflow splits the work: the machine drafts, a person verifies, adds experience and approves. See the checklist and what Google says.

Beginner
#Content
#E-E-A-T
#Beginners
How to Build a Content Cluster With AI (Without Losing Quality)

How to Build a Content Cluster With AI (Without Losing Quality)

10 min read

How to build a content cluster with AI: topic, questions, content plan, generation, human review, internal links and publishing, with a plan table and checklist.

Intermediate
#Content
#SEO
#Tools
Backlinks from Brazilian Sites to Rank in Portuguese

Backlinks from Brazilian Sites to Rank in Portuguese

10 min read

Want your English site to rank in Brazilian Portuguese? See why links from Brazilian websites help, how hreflang fits in and which pages to point them to.

Intermediate
#Backlinks
#Link Building
#SEO
Free Backlink Checker Tools: What Each One Shows (2026)

Free Backlink Checker Tools: What Each One Shows (2026)

10 min read

Search Console, Bing, Ahrefs Webmaster Tools, Moz and Semrush show backlinks for free. See what each delivers, its 2026 limits and how to combine them.

Beginner
#Backlinks
#Tools
#Beginners
Natural Backlink Profile: What It Looks Like and How to Keep Yours Healthy

Natural Backlink Profile: What It Looks Like and How to Keep Yours Healthy

10 min read

A natural backlink profile has varied domains, mixed anchors and an uneven pace. See the signals, a 6-step audit and what Google actually says about it.

Intermediate
#Backlinks
#Link Building
#Metrics
Backlinks on News Sites: Are They Worth the Investment?

Backlinks on News Sites: Are They Worth the Investment?

10 min read

A paid link on a news site is usually advertising, with rel sponsored and little ranking effect. See when it pays off, how to negotiate and the alternatives.

Intermediate
#Backlinks
#Digital PR
#Link Building
Local Business Backlinks: Where to Get Your First Links

Local Business Backlinks: Where to Get Your First Links

9 min read

Start with the links that already exist in your town: associations, suppliers, sponsorships and local press. Step-by-step plan and an email template for your business.

Beginner
#Backlinks
#Local SEO
#Beginners
Backlinks for Clinics and Law Firms: What Is Safe and Ethical

Backlinks for Clinics and Law Firms: What Is Safe and Ethical

11 min read

Clinics and law firms should favor editorial links from associations, universities and press. See what Brazil's CFM and OAB say about advertising, and what to avoid.

Intermediate
#Backlinks
#YMYL
#E-E-A-T
SaaS and B2B Backlinks: A Strategy Beyond Guest Posts

SaaS and B2B Backlinks: A Strategy Beyond Guest Posts

10 min read

SaaS earns links through integrations, original data, free tools and digital PR. See the best sources, the right target pages and the mistakes that create risk.

Intermediate
#Backlinks
#SaaS
#Link Building
Ecommerce Backlinks: Which Pages to Link and Where to Get Links

Ecommerce Backlinks: Which Pages to Link and Where to Get Links

10 min read

In an online store, link category pages and buying guides first, not just products. See where to get links from suppliers, reviews and press, and the risks.

Intermediate
#Backlinks
#E-commerce
#Link Building
How to Measure Backlink ROI (Without Vanity Metrics)

How to Measure Backlink ROI (Without Vanity Metrics)

11 min read

Measure backlink ROI by comparing pages that got links with similar pages that did not, over 30 to 180 day windows, with a spreadsheet model and a worked example.

Advanced
#Backlinks
#Metrics
#Link Building
Unlinked Brand Mentions: Value and How to Turn Them Into Links

Unlinked Brand Mentions: Value and How to Turn Them Into Links

9 min read

Did someone mention your brand without linking? See what Google says, what is known for AI search, how to find mentions and how to ask for the link.

Intermediate
#Backlinks
#Link Building
#Digital PR
Linkable Assets: What to Create to Earn Backlinks Naturally

Linkable Assets: What to Create to Earn Backlinks Naturally

10 min read

Calculators, studies, glossaries, templates: see which assets attract links, how to pick the right format and how to promote it without relying on luck.

Advanced
#Backlinks
#Link Building
#Content
Broken Link Building: Step-by-Step Guide to Earn Links

Broken Link Building: Step-by-Step Guide to Earn Links

10 min read

How to find broken links, read dead pages on the Wayback Machine, create a replacement and ask for the swap. Includes how to reclaim your own broken links.

Advanced
#Backlinks
#Link Building
#Advanced
Guest Post Outreach That Works (3 Email Templates)

Guest Post Outreach That Works (3 Email Templates)

10 min read

How to land guest posts: prospecting, vetting sites, pitching, follow-ups and 3 ready-to-copy email templates you can adapt to your niche.

Intermediate
#Backlinks
#Link Building
#Content
Digital PR for Link Building: Earn Links From Media and Blogs

Digital PR for Link Building: Earn Links From Media and Blogs

9 min read

Digital PR means giving journalists a reason to write about you. See angles, pitching, source-request platforms and metrics to earn real mentions and links.

Advanced
#Backlinks
#Link Building
#Digital PR
Link Spam Penalty and Disavow: When and How to Act

Link Spam Penalty and Disavow: When and How to Act

9 min read

Manual action or algorithm? See how to check in Search Console, when disavow is actually worth it (almost never) and how to file a reconsideration request.

Advanced
#Backlinks
#Link Building
#Security
PBN (Private Blog Network): How It Works, Risks and Alternatives

PBN (Private Blog Network): How It Works, Risks and Alternatives

10 min read

A PBN is a network of sites controlled by one person to point links and inflate rankings. See how Google treats it, the real risks and legitimate alternatives.

Intermediate
#Backlinks
#Link Building
#Security
10 Questions to Ask Your Backlink Provider Before You Pay

10 Questions to Ask Your Backlink Provider Before You Pay

10 min read

The 10 questions that separate a transparent backlink provider from a risky one, with good and bad answers and red flags to help you compare proposals.

Intermediate
#Backlinks
#Link Building
#Checklist
Backlink Buying Checklist: 20 Points Before You Pay

Backlink Buying Checklist: 20 Points Before You Pay

10 min read

A 20-point checklist to review your goal, page, provider, link quality and reporting before paying for backlinks. Includes a short 5-question version.

Beginner
#Backlinks
#Checklist
#Beginners
How to Analyze Competitor Backlinks (Link Gap Analysis)

How to Analyze Competitor Backlinks (Link Gap Analysis)

9 min read

A link gap is the list of sites that link to your competitors but not to you. See the step-by-step with paid and free tools, and how to prioritize.

Intermediate
#Backlinks
#Link Building
#Tools
How Long Does a Backlink Take to Work?

How Long Does a Backlink Take to Work?

10 min read

Google takes days to weeks to crawl a link, and the effect on rankings can take weeks or months. See the stages, how to track results and what to expect.

Beginner
#Backlinks
#Google Search Console
#Beginners
How Many Backlinks Do I Need? Estimate It From Competitors

How Many Backlinks Do I Need? Estimate It From Competitors

10 min read

There is no magic number: count the referring domains of page-one competitors, find the median and measure your distance. A step-by-step method with an example.

Beginner
#Backlinks
#Link Building
#Beginners
Do Backlinks Help You Show Up in ChatGPT and Other AI?

Do Backlinks Help You Show Up in ChatGPT and Other AI?

11 min read

They probably help indirectly, but no one can prove cause. See what the studies show, what is hypothesis and what to do with that uncertainty.

Intermediate
#Backlinks
#ChatGPT
#AI Search
Anchor Text: Types, Ratios and Common Mistakes

Anchor Text: Types, Ratios and Common Mistakes

11 min read

Anchor text is the clickable part of a link. See the types, why there is no magic ratio, how to audit your profile and when exact-match becomes a risk.

Intermediate
#Backlinks
#Link Building
#On-page SEO
Dofollow, Nofollow, Sponsored and UGC Links: What Changes

Dofollow, Nofollow, Sponsored and UGC Links: What Changes

10 min read

Dofollow does not exist in HTML. See what nofollow, sponsored and UGC mean, how Google treats them (as hints), how to check a link and which to use on paid links.

Beginner
#Backlinks
#Technical SEO
#Beginners
What Are Backlinks and Why They Matter for SEO and AI Search

What Are Backlinks and Why They Matter for SEO and AI Search

15 min read

A backlink is a link from another site to yours. Learn the types, what makes a link good, how to earn them and what we know about links and AI search.

Beginner
#Backlinks
#Link Building
#Beginners
How Much Does GEO Cost and How Do You Measure ROI?

How Much Does GEO Cost and How Do You Measure ROI?

10 min read

GEO has no price list. See the five cost components, an ROI formula and the expectation mistakes that burn budget. No promise of AI citations.

Intermediate
#GEO
#Metrics
#AI Search
How to Update Old Content to Rank and Get Cited in AI Search

How to Update Old Content to Rank and Get Cited in AI Search

12 min read

Pick pages from Search Console, change what is truly outdated, date the update honestly and measure the result. A step-by-step refresh guide for Google and AI.

Intermediate
#Content
#AI Search
#Google Search Console