Knowledge base
SEO glossary
Terms and mini-articles for teams and clients—concise context plus links to authoritative references.
0–9
- 301 Redirect: Permanent Redirect
- 302 Redirect: Temporary Redirect
- 307 Redirect: Temporary Redirect with Method Preservation
- 308 Redirect: Permanent Redirect with Method Preservation
- 401 Unauthorized: meaning and SEO impact
- 404 Not Found: page not found
- 410 Gone: page permanently deleted
- 503 Service Unavailable: service temporarily unavailable
A
B
C
- Canonical for Filters
- Canonical for Multilingual Sites
- Canonical URL
- Category Page SEO
- ccTLD (Country Code Top‑Level Domain)
- Chrome UX Report (CrUX)
- Citation Flow (CF)
- Commercial Intent
- Competitor Backlink Analysis
- Compression (Gzip, Brotli)
- Content Audit
- Content Gap Analysis
- Content Optimization
- Content Silos
- Core Web Vitals
- Country Targeting
- Crawl Budget
- Crawling
- Critical CSS
- CSR (Client‑Side Rendering)
- CTR (Click‑Through Rate)
- Cumulative Layout Shift (CLS)
D
E
F
G
H
I
J
K
L
- Language Targeting
- Largest Contentful Paint (LCP)
- Lazy Loading
- Lemmatisation
- Link blast (link bomb)
- Link building
- Link Diversity
- Link Exchange
- Link juice (link equity)
- Link Marketplaces (Link Exchanges)
- Link Mass (Ssylochnaya massa)
- Link Popularity (Ssylochnaya populyarnost)
- Link profile (backlink profile)
- Link ranking factors
- Link Strategy (Ssylochnaya strategiya)
- Link velocity (link acquisition rate)
- Link-Based Ranking (Ssylochnoe ranzhirovanie)
- Local citations
- Local Directories
- Local Keywords
- Local Landing Pages
- Local Pack
- Local SEO
- LocalBusiness Schema
- Log File Analysis
- Long-tail
- Low‑frequency keywords (LF)
- LSI (Latent Semantic Indexing)
M
N
O
P
- PageRank (PR)
- PageSpeed Insights
- Pagination
- Pagination in E‑commerce
- Partial Match Anchor
- PBN (Private Blog Network)
- Penalties (Sanktsii)
- Permanent links (eternal links)
- Pessimisation
- Pogo Sticking
- Product Descriptions
- Product Feed Optimisation
- Product Page SEO
- Product Redirects
- Product Reviews
- Product Schema
- Product Variants
Q
R
S
- sameAs
- Schema Markup Validator
- Schema.org
- Screaming Frog SEO Spider
- Search Algorithm
- Search Bot (Crawler)
- Search Engine
- Search engine query language
- Search Intent
- Search quality rater (assessor)
- Search Spam
- Search Volume
- Semantic Cocoon
- Semantic Core (Keyword Universe)
- Semantic Coverage (Semanticheskiy ohvat)
- Semrush
- SEO (Search Engine Optimization)
- SEO Copywriting
- SERM (Search Engine Reputation Management)
- SERP (Search Engine Results Page)
- Short-Tail Keywords
- SimilarWeb
- Site mirror (duplicate domain)
- Sitewide Links (Skvoznye ssylki)
- Snippet
- Soft 404
- Speed Index
- SSR (Server-Side Rendering)
- Structured data
- Subdomain
- Subdomain vs. subdirectory
T
- Text dilution (content fluff)
- Text ranking factors
- Text uniqueness (content uniqueness)
- Thin content
- Thin content in e-commerce
- Tiered link building
- Title tag
- Topic clusters
- Topical authority
- Toxic links
- Transactional intent
- Trust Flow (TF) — Majestic trust metric
- TTFB (Time to First Byte): What It Is and How to Improve It