ドメインとSEO

1

Does Your TLD Affect SEO? The Definitive Answer

Does your TLD affect Google rankings? TLDs have no direct ranking effect but shape CTR, link acquisition, and geographic targeting in measurable ways.

5 分で読める

2

Domain Age and SEO: Myth vs Reality

Does domain age help SEO? Google says no — old domains rank better due to accumulated backlinks and content, not age itself. Here is what actually matters.

5 分で読める

3

Exact Match Domains: Do They Still Work?

Exact match domains lost most SEO power after Google's 2012 EMD update. Learn what still works, the risks, and the brand-first domain strategy that wins today.

5 分で読める

4

301 Redirects and Domain Migrations: SEO Guide

301 redirects transfer SEO authority during domain migrations. Covers URL mapping, redirect implementation, common mistakes, and timeline expectations.

5 分で読める

5

New TLD SEO Performance: Case Studies

Real new TLD SEO case studies: .io in SaaS, .co for startups, .org for non-profits, .app for developers. When new gTLDs rank competitively vs legacy domains.

5 分で読める

6

Domain Authority: What It Is and How to Build It

Domain Authority explained: Moz DA vs Ahrefs DR vs Google's signals. How to build genuine domain authority through content, backlinks, and brand signals.

6 分で読める

7

Subdomain vs Subdirectory: SEO Implications

Subdomain vs subdirectory for SEO: Google says they're equal, but case studies show subdirectories often perform better. Decision framework for each structure.

4 分で読める

8

International SEO: ccTLD vs Subdomain vs Subfolder

International SEO: ccTLD vs subdomain vs subdirectory. Google guidance, real-world performance data, and a decision framework for multi-market expansion.

5 分で読める

9

HTTPS and SSL: The SEO Connection

HTTPS and SSL's SEO impact: Google's confirmed ranking signal, indirect CTR and page speed effects, step-by-step implementation, and common migration mistakes.

5 分で読める

10

Domain Name Keywords: Best Practices for SEO

Keywords in domain names: what still works for SEO and what to avoid. Best practices for using keywords without sacrificing brand identity or memorability.

5 分で読める

11

Hreflang Tags: Multi-Language Domain Strategy

Hreflang tags for multi-language domains: syntax, implementation methods, bidirectional requirements, common errors, and interaction with ccTLD structures.

4 分で読める

12

www vs non-www: Which Is Better for SEO?

www vs non-www for SEO: Google treats both equally — consistent canonicalization is what matters. DNS flexibility, cookie handling, and memorability compared.

5 分で読める

13

Changing Your Domain Name Without Losing Rankings

Change your domain name without losing rankings: URL inventory, 301 redirect implementation, Search Console setup, and a 90-day recovery monitoring checklist.

5 分で読める

14

Multiple Domains SEO Strategy: When It Helps

Multiple domains for SEO: splitting content fragments authority and hurts rankings — except in these specific scenarios where multi-domain strategy works.

5 分で読める

15

Domain Penalties: How Bad Domains Hurt Rankings

Domain penalties: manual actions vs algorithmic suppression, how toxic backlinks and bad domain history hurt rankings, plus diagnosis and recovery steps.

6 分で読める