How does Google search work?





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Published on Apr 23, 2012

Hi Matt, could you please explain how Google's ranking and website evaluation process works starting with the crawling and analysis of a site, crawling timelines, frequencies, priorities, indexing and filtering processes within the databases etc. RobertvH, Munich

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  1. 387

    How does Google decide when to display multiple results from the same website?

  2. 388

    Is it useful to have a section of my site that re-posts articles from other sites?

  3. 389

    What happens if I link to a good page that later becomes spammy?

  4. How does Google search work?

  5. 391

    Does Google take manual action on webspam?

  6. 392

    My site doesn't have much text. Is that a problem?

  7. 393

    Do you recommend using special characters in URLs?

  8. 394

    Can you explain what Google means by "trust"?

  9. 395

    Is the "Panda" algorithm update affecting non-English searches?

  10. 396

    Authorship markup

  11. 397

    Authorship markup using URL parameters

  12. 398

    What are the best practices for PDF optimization?

  13. 399

    Are paid directories held to the same standards as paid links?

  14. 400

    Should I spend more time on improving my content or on fighting scrapers?

  15. 401

    What steps can I take to diagnose a drop in ranking?

  16. 402

    How does Google determine page speed?

  17. 403

    Ranking reports

  18. 404

    Does Google consider SEO to be spam?

  19. 405

    What are the 3-5 most important things I should pay attention to in Google Webmaster Tools?

  20. 406

    How do reconsideration requests work at Google?

  21. 407

    Underscores vs. dashes in URLs

  22. 408


  23. 409

    Changing your website's domain name

  24. 410

    Moving your website to a different host

  25. 411

    Is there a limit to how many 301 (Permanent) redirects I can do on a site?

  26. 412

    What is Caffeine indexing?

  27. 413

    Will changing the code and layout of my pages while moving to new URLs affect their rankings?

  28. 414

    Does selling the same product on three different domains look spammy?

  29. 415

    Do robots follow links on a page which uses rel="canonical" to point to a different page?

  30. 416

    Why aren't the Google Toolbar PageRank values updated more often?

  31. 417

    Should I add nofollow to banner ads?

  32. 418

    Will setting the rel="canonical" attribute of a page to itself cause a loop?

  33. 419

    Would you rather spend time with a perfectly optimized website or a barrel full of kittens?

  34. 420

    Will showing recent posts on my homepage cause a duplicate content issue?

  35. 421

    Why do Amazon.com pages tend to rank well for product queries?

  36. 422

    How much content should be on a homepage?

  37. 423

    What should I do if the "noindex" attribute doesn't appear to be working?

  38. 424

    Is the same content posted under different TLDs a problem?

  39. 425

    Can switching to HTTPS harm ranking?

  40. 426

    Is serving Googlebot a transcript in place of a video considered to be cloaking?

  41. 427

    Why do porn sites have lower PageRank?

  42. 428

    What's your opinion on microsites?

  43. 429

    How does Google handle pages with content that changes on each page load?

  44. 430

    Should internal links use rel="nofollow"?

  45. 431

    Is there a way to indicate boilerplate content on a page?

  46. 432

    What do you think about Blekko?

  47. 433

    Can I flag spammy links to my site that I didn't create?

  48. 434

    Can coding errors affect how a page is indexed?

  49. 435

    Can I tell Google about links to my site?

  50. 436

    Does Google support cross-domain rel="canonical"?

  51. 437

    How do we report a problem with our search results listings?

  52. 438

    Is there an advantage to using rel="canonical" over a 301 redirect?

  53. 439

    Will Google improve its crawling of AJAX?

  54. 440

    How is Google helping Google Analytics users with site speed?

  55. 441

    How is Google Public DNS data used?

  56. 442

    How would a non-optimized site outrank a site which has done SEO?

  57. 443

    Which websites are popular among Googlers?

  58. 444

    Why are some of Google's products not available outside of the US?

  59. 445

    Do URL shorteners pass anchor text?

  60. 446

    How can I make sure that Google knows my content is original?

  61. 447

    How can I learn about the technologies used at Google?

  62. 448

    Will Google give a higher rank to a website which runs AdSense?

  63. 449

    Why aren't geographic target and query parameters specified in robots.txt?

  64. 450

    When I change domains, how long should I leave the redirects in place?

  65. 451

    Does Google do a "holiday change"?

  66. 452

    How should I handle localized content?

  67. 453

    What are some of the projects that the webspam team might tackle in 2011?

  68. 454

    Does Google recognize the difference between different meanings of a word in a query?

  69. 455

    Is HTML validation necessary for ranking?

  70. 456

    Do you recommend article marketing as an SEO strategy?

  71. 457

    If you were an SEO of a large company, what would you include in your 2011 strategy?

  72. 458

    How important is it to have keywords in a domain name?

  73. 459

    Will Google penalize sites which only link using the nofollow attribute?

  74. 460

    Can I specify the canonical of all of a product's review pages as a single URL?

  75. 461

    How does Google handle "not found" pages that don't return a 404?

  76. 462

    Is changing the language of page titles based on the user's IP considered cloaking?

  77. 463

    How does Google treat sites where all external links are no-follow?

  78. 464

    Does Google still recommend 100 links or fewer per page?

  79. 465

    Is there any advice that you want to change from what you've said in the past?

  80. 466

    When would someone use "noindex, follow" in a robots meta tag?

  81. 467

    When are penalties lifted?

  82. 468

    Will I be penalized for hidden content if I have text in a "read more" dropdown?

  83. 469

    What are some of your Android recommendations?

  84. 470

    Using Webmaster Tools like an SEO

  85. 471

    What are some examples of SEO misinformation?

  86. 472

    Is Google able to crawl protocols other than http and https?

  87. 473

    Is comma a separator in a title tag?

  88. 474

    Is the time left before your domain registration expires an SEO factor?

  89. 475

    How can I improve my linking on a Q&A site?

  90. 476

    How are site: results ranked?

  91. 477

    Where is Google heading in the future?

  92. 478

    How can an out-of-town company compete with local competition?

  93. 479

    What's your favorite part of the Googleplex?

  94. 480

    Does indexing a mobile website create a duplicate content issues?

  95. 481

    12 Days of Googlemas

  96. 482

    What are some search trends on your radar?

  97. 483

    Does Google use data from social sites in ranking?

  98. 484

    How can I get my business to become known online?

  99. 485

    How does Google handle special characters?

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