| No. | Item | Definition |
|---|---|---|
| 1. | 301 | permanent redirect status code |
| 2. | 404 | page not found status |
| 3. | A/B test | comparison of two versions |
| 4. | algorithm | rules determining search visibility |
| 5. | alt text | image description for accessibility |
| 6. | analytics | measurement of site performance |
| 7. | anchor text | clickable words in a link |
| 8. | authority | perceived trust and expertise |
| 9. | backlink | link from another website |
| 10. | black hat | rule-breaking SEO tactics |
| 11. | bot | automated web crawler or script |
| 12. | bounce rate | single-page visit percentage |
| 13. | brand search | query containing a brand name |
| 14. | canonical | preferred version of duplicate pages |
| 15. | citation | online mention of business details |
| 16. | click-through rate | percentage of impressions clicked |
| 17. | conversion | desired user action completed |
| 18. | Core Web Vitals | key page experience metrics |
| 19. | crawl | discover pages by following links |
| 20. | CTA | prompt encouraging user action |
| 21. | deindex | remove from search index |
| 22. | disavow | ask engines to ignore links |
| 23. | duplicate content | same or similar page text |
| 24. | dwell time | time before returning to results |
| 25. | E-E-A-T | experience, expertise, authority, trust |
| 26. | entity | distinct person, place, or thing |
| 27. | evergreen | content staying useful over time |
| 28. | external link | link to another website |
| 29. | faceted navigation | filter-based browsing system |
| 30. | featured snippet | highlighted answer above results |
| 31. | freshness | how recently content updated |
| 32. | funnel | stages toward conversion |
| 33. | gap analysis | finding missed opportunities |
| 34. | Google Business Profile | business listing on Google |
| 35. | head term | broad high-volume keyword |
| 36. | hreflang | language and region page signal |
| 37. | HTML | markup language for webpages |
| 38. | HTTPS | secure website protocol |
| 39. | impression | time a result is shown |
| 40. | index | stored pages searchable by engines |
| 41. | indexability | ability to enter the index |
| 42. | internal link | link to another site page |
| 43. | international SEO | optimization across countries or languages |
| 44. | JavaScript | scripting language affecting rendering |
| 45. | keyword | search term targeted in content |
| 46. | KPI | key performance indicator |
| 47. | landing page | page designed for conversions |
| 48. | lead | potential customer contact |
| 49. | link building | earning or acquiring backlinks |
| 50. | link equity | value passed through links |
| 51. | local SEO | optimization for nearby searches |
| 52. | long-tail | specific lower-volume keyword type |
| 53. | manual action | human-applied search penalty |
| 54. | map pack | local results map section |
| 55. | meta description | summary text for search snippets |
| 56. | metadata | data describing a webpage |
| 57. | migration | major site move or change |
| 58. | mobile-first | optimized primarily for mobile |
| 59. | NAP | name, address, phone details |
| 60. | navigation | site menus and page paths |
| 61. | nofollow | link attribute limiting endorsement |
| 62. | off-page | optimization outside the website |
| 63. | on-page | optimization on the webpage |
| 64. | orphan page | page with no internal links |
| 65. | outreach | contacting others for links |
| 66. | page speed | how fast a page loads |
| 67. | PageRank | link-based importance score |
| 68. | pagination | splitting content across pages |
| 69. | penalty | search visibility reduction |
| 70. | pillar page | main page covering a topic |
| 71. | PPC | pay-per-click advertising |
| 72. | query | words entered into search |
| 73. | ranking | position in search results |
| 74. | redirect | send users to another URL |
| 75. | referring domain | site linking to yours |
| 76. | relevance | how well content matches |
| 77. | responsive | adapts layout to screen size |
| 78. | review | user rating or feedback |
| 79. | robots.txt | crawler access instruction file |
| 80. | ROI | return on investment |
| 81. | schema | structured data vocabulary |
| 82. | search intent | purpose behind a query |
| 83. | search volume | estimated monthly query count |
| 84. | SERP | search engine results page |
| 85. | sitemap | list of site URLs |
| 86. | slug | URL part after domain |
| 87. | snippet | search result preview text |
| 88. | spam | manipulative low-quality web content |
| 89. | technical SEO | backend search optimization work |
| 90. | thin content | page with little value |
| 91. | title tag | HTML title shown in results |
| 92. | topical authority | depth of expertise on topic |
| 93. | traffic | visits to a website |
| 94. | UGC | user-generated content |
| 95. | update | search algorithm change |
| 96. | URL | web address of a page |
| 97. | UX | overall user experience quality |
| 98. | visibility | how often pages appear |
| 99. | volatility | degree of ranking fluctuation |
| 100. | white hat | guideline-following SEO methods |