Appendix B: Beginner-Friendly Industry Glossary
- Backlink: An incoming clickable hyperlink from an external website pointing to your page. Functions as a vote of confidence in search engine algorithms.
- CAC (Customer Acquisition Cost): The total financial cost of sales and marketing required to gain one new paying customer.
- Canonical Tag: An HTML tag that tells search engines which URL is the authoritative master version when duplicate or similar pages exist.
- Core Web Vitals: A set of standardized user experience metrics established by Google measuring page load speed, responsiveness, and visual stability.
- Crawling: The process by which automated search engine bots discover new and updated pages on the web by following hyperlinks.
- CTA (Call to Action): A clear instruction designed to provoke an immediate response from the visitor (e.g., "Download the Free Guide," "Schedule a Consultation").
- CTR (Click-Through Rate): The percentage of people who click a link or advertisement out of the total number of people who viewed it.
- Domain Authority (DA): A third-party search metric predicting a website's ranking strength based on its total backlink profile.
- E-E-A-T: Experience, Expertise, Authoritativeness, and Trustworthiness—the core qualitative framework Google uses to evaluate content credibility.
- Google Business Profile (GBP): A free profile provided by Google that allows physical and local service businesses to manage their presence on Google Maps and Local Search.
- Indexing: The organization, parsing, and storage of web pages inside a search engine's vast central database.
- Keyword Difficulty (KD): An estimate of how hard it will be to rank on the first page of Google for a specific search query based on current competition.
- LTV (Lifetime Value): The total net revenue a single customer is projected to spend with your company over the entire duration of their relationship.
- Meta Description: A brief HTML snippet summarizing a webpage's contents, displayed beneath the title tag on search engine results pages.
- NAP: Name, Address, and Phone number. A foundational citation metric in Local SEO that must remain consistent across the entire web.
- Organic Traffic: Visitors who arrive at your website via non-paid search engine listings.
- Paid Traffic (PPC): Pay-Per-Click advertising where the business pays a fee each time a user clicks their ad.
- ROAS (Return on Ad Spend): A financial efficiency metric measuring gross revenue generated for every dollar invested in advertising.
- Robots.txt: A text file in a website's root folder providing instructions to automated crawlers regarding which areas of the site may be scanned.
- Search Intent: The underlying motivation, objective, or question a user has when entering a search query into an engine.
- SERP: Search Engine Results Page—the screen displayed by Google after a user submits a search query.