PWAに取り組む前に知っておきたい SPAとSEO

Transcript

1. PWAʹऔΓ૊Ήલʹ஌͓͖͍ͬͯͨ SPAͱSEO @PWA Conference 2020/02/01
2. ؔ ݑ໵ @sekikazu01 גࣜձࣾLinc’well ΤϯδχΞ
3. PWA SEO ✖
4. PWA ֓೦తʹ͸ͦΜͳʹؔ܎ͳ͍ SEO ✖
5. 18"Ͱ͸ΞϓϦϥΠΫͳମݧΛఏڙ͢ΔͨΊʹ
   ಈతʹίϯςϯπΛඳը͢Δ͜ͱ͕͠͹͠͹
6. 18"ʹऔΓ૊Ήલʹ 4&0ͷϦεΫΛֶͼ
   ϏδωεΛᆝଛ͠ͳ͍
   Α͏ʹ͠·͠ΐ͏ʂ
7. ຊ೔ͷ͓࿩ ࿩͢͜ͱ
   • SPAͷߏஙΛݕ౼͍ͯ͠Δ͜ͱΛલఏͱ͠ʮSEOͷ౔୆ͮ͘Γʯͷํ๏ʹ͍͓ͭͯ ࿩͠͠·͢ɻ • ͍ΘΏΔςΫχΧϧSEOͱݺ͹ΕΔ΋ͷͷҰ෦Ͱ͢ɻ ࿩͞ͳ͍͜ͱ
   • ϥϯΩϯάΛͲ͏্͍͔͛ͯ͘ͳͲ۩ମతͳSEOςΫχοΫʹ͍ͭͯ͸࿩͠·ͤΜ ·ͨɺલఏͱͯ͠ݕࡧΤϯδϯ͸
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   
   ͷΈΛߟྀ͍ͯ͠·͢
8. Agenda l4&0zͱ͸ͳʹ͔ 1 41"ʹ͓͚Δ4&0ͷ՝୊ ͲΜͳղܾࡦ͕͋Δͷ͔ ཁٻύλʔϯ͝ͱͷղܾࡦͷબͼํ 2 3 4
9. “SEO”ͱ͸ͳʹ͔ 01.
10. SEO = Search Engine Optimization
11. ʮ4&0ͷ౔୆ʯ
    
    
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12. ʮ4&0ͷ౔୆ʯ
    
    
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16. ߏ଄Խσʔλͷྫ
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18. SPAʹ͓͚Δ SEOͷ՝୊ 02.
20. ͳʹ΋ରࡦ͍ͯ͠ͳ͍41"ͷૉͷ)5.-͸͜Μͳײ͡
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26. Կඵ·ͰͳΒ଴ͬͯ͘ΕΔͷ͔ʁ தͷਓͷ͓ݴ༿ˏ+BWB4DSJQU
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28. ՝୊
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29. ՝୊
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    2VFVF
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30. IUUQTXXXZPVUVCFDPNXBUDI W:1U.#IZ6* ि͔͔ؒΔ͜ͱ΋ʂ ͳͷͰίϯςϯπͷߋ৽͕සൟͳαΠτͰ͸໰୊ʹͳΔ
31. ͪͳΈʹʜ͜ΕΒͷ՝୊ʹ
    
    
    
    
    
    
    
    
    
    
    
    
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32. IUUQTXXXZPVUVCFDPNXBUDI W:1U.#IZ6*
33. ʮ3FOEFS
    2VFVFʹΑΔΠϯσοΫεͷ஗Ԇʯ
    ʹؔͯ͠͸কདྷతʹղܾ͞Εͦ͏
34. ੲͷจݙړͬͯΔͱ(PPHMF
    CPU͕ѻ͍ͬͯΔϨϯ μϦϯάΤϯδϯ͸$ISPNF
    
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    ͸
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35. ˞$ISPNF
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 දࣔ֬ೝ͘Β͍͸͠ͱ͍ͨํ͕҆৺͔ͳ…
36. ·ͱΊ 41"Ͱ4&0ͷ౔୆Λ࡞ΔͨΊʹ͸࣍ͷ՝୊Λೝࣝ͢Δ
    
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37. ͲΜͳղܾࡦ ͕͋Δͷ͔ 03.
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41. 
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42. ΫϩʔΩϯάʹ͍ͭͯ ϒϥοΫϋοτ4&0ͷҰͭɻCPU
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43. ΫϩʔΩϯάʹ͍ͭͯ 'FUDI
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47. 
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49. ཁٻύλʔϯ͝ͱͷ ղܾࡦͷબͼํ 04.
50. ٕज़બఆʹؔΘΔཁૉ ʮͱΓ͋͑ͣ͜Εʹ͓͚ͯ͠͹ϤγʂʯΈ͍ͨͳۜͷ஄ؙ͸ͳ͍ɻ Ϗδωεཁٻ΋͋Ε͹ɺͦͷ૊৫ͷٕज़ྗ΍εΩϧηοτʹ΋ؔΘΔͱ͜Ζ͕ େ͖͍ͷͰɺࣗ਎ͷঢ়گΛؑΈͯద੾ͳҙࢥܾఆ͕Ͱ͖ΔΑ͏ʹ͠·͠ΐ͏
51. ߟ͑Δ͜ͱ1. සൟʹߋ৽͞ΕΔ & ͙͢ʹΠϯσοΫεͯ͠΄͍͔͠Ͳ͏͔ ͜͜ͷ৴པੑΛٻΊΔͳΒ Dynamic Rendering ͢Δ͔͠ͳͦ͞͏ - ݸਓతͳԾઆͱͯ͠͸ɺRender Queue ʹೖΕΒΕΔ͔Ͳ͏͔͸ <script> λά ͕͋Δ͔Ͳ͏͔Ͱ൑ఆ͍ͯ͠ΔͷͰ͸ͳ͔Ζ͏͔
 ྲྀੴʹ͜Εͩͱର৅શ෦ʹͳͬͪΌ͏͔ΒϑΝΠϧαΠζͱ͔XHRϦΫΤετൃੜ͍ͯ͠Δ͔ͱ͔ ͔΋ - Ծʹ্ه͕ਅͳ৔߹ɺSSR΍SSGͰ΋ෆ҆͸࢒ΔɻDynamic Renderingͩ ͱ script λάফͤͨΓ͢ΔͷͰ৺഑͸͍Βͳ͍
52. ߟ͑Δ͜ͱ2. SSG or SSR ͢Δ͔ී௨ͷSPAͰߦ͔͘ 44(
    PS
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53. SSG΍SSRͷ։ൃ೉қ౓ʹؔͯ͠ ΊΜͲ͍͘͞ͱ͜Ζ - ᷖᮣʹϒϥ΢βʹ͔͠ଘࡏ͠ͳ͍ΦϒδΣΫτ(windowͱ͔)࢖͏ͱϏϧυ ͕͚͜Δ(ࣗ෼͕ؾΛ෇͚͍ͯͯ΋࢖͏ϥΠϒϥϦ͕ରԠͯ͠ͳ͚ͯͯ͘͜ Πϥοͱ͖ͨΓ͢Δ) - hydration(αʔόαΠυͰඳըͨ࣌͠ͷঢ়ଶͱΫϥΠΞϯτଆͷঢ়ଶΛಉ ظͤ͞Δ)্͕ख͍͔͘ͳͯ͘༁෼͔ΒΜόάग़ͨΓ͢Δ
54. SSG΍SSRͷ։ൃ೉қ౓ʹؔͯ͠ - ϑϩϯτ։ൃ׳ΕͯΔਓ͕͍ͳ͍ͱ৭ʑΊΜͲ͍ͷͰɺϏδωεཁٻతʹ ڧ͍ඞવੑ͕͋Δ͔ɺཁٻ͕ബ͘ɺ͍Δϝϯόʔ΋ͦͦ͜͜ϑϩϯτ։ൃ ͷܦݧ͋Δ͔ΒʮͱΓ͋͑ͣ଎͘ͳΔ͠SSG or SSRͰ࡞ͬͱ͔͘ʯͱݴ ͏ͷ͕OKͳ৔߹ʹબΜͩΒ͍͍ͷͰ͸
55. ߟ͑Δ͜ͱ3. SSR ʹ͢Δ͔ SSG ʹ͢Δ͔ େମͷΞϓϦέʔγϣϯͰ͸SSGͷํ͕͍͍Μ͡Όͳ͍ʁͱࢥ͍ͬͯΔ - ։ൃ೉қ౓͕SSRͱൺֱ͢Δͱ௿͍͔Β - SSRͷ৔߹ϨϯμϦϯάαʔόʔͷεέʔϥϏϦςΟΛؾʹ͢Δඞཁ͕͋Δ ͕ɺSSGͰ͸ඞཁͳ͍ - SEO͍ͨ͠ϖʔδ -> Ϣʔβݸਓͷ৘ใͳͲಈతʹੜ੒͢Δ΋ͷͰ͸ͳ͍ (͜ͱ͕ଟ͍)ͷͰཁٻతʹ΋໰୊ͳ͍͔Β
56. ͨͩɺSSRͷํ͕ϕλʔͳέʔε΋͋ͬͯɺSEO͍ͨ͠ϖʔδ͕ಈతͳ΋ͷɻ ྫ͑͹Ϣʔβ౤ߘܕͷϒϩάαΠτͳͲ - ର৅ͷϖʔδʹมߋೖͬͨΓهࣄ͕૿͑Δ౓ʹશهࣄϏϧυ૸ΒͤΔͷ͸· ͋·͙͍͋͑ - ϦΫΤετʹԠͯ͡SSRͯ͠CDNΩϟογϡͤ͞Δํ͕ΑΓཁٻʹରͯ͠ے ͕ྑͦ͞͏
57. ·ͱΊ - සൟʹߋ৽͞ΕΔ & ͙͢ʹΠϯσοΫεͯ͠΄͍͔͠Ͳ͏͔
 → Dynamic Rendering͢΂͖͔ߟ͑Δ - SSR or SSG ͢Δ͔ී௨ͷSPAͰߦ͔͘
 → Ϣʔβମݧ΍νʔϜͷεΩϧɾ΍͍͖ͬͯΛݩʹߟ͑Δ - SSR ʹ͢Δ͔ SSG ʹ͢Δ͔
 → αʔόଆͰඳը͍ͨ͠ϖʔδʹεέʔϥϏϦςΟ͕ٻΊΒΕΔ͔ɺ
 νʔϜͷεΩϧɾ΍͍͖ͬͯͳͲΛݩʹߟ͑Δ
58. CASE STUDY: ͱ͋ΔECαΠτͷྫ Next.jsΛ࢖ͬͨSSG Ͱߦ͘͜ͱʹͨ͠ - Static Rendering͸FMP͕଎͘ͳΓϢʔβମݧʹ΋ϓϥε → কདྷతʹωο τϫʔΫ͕஗͍͔΋͠Εͳ͍ւ֎ల։΋͋ΓಘΔͨΊॏཁ - ࣄલʹඳը͓͖͍ͯͨ͠ϖʔδ͕TopɺΧςΰϦৄࡉɺ঎඼ৄࡉͷΈͰɺ ঎඼ϥΠϯφοϓ͕ͦ͜·Ͱ૿͑Δ͜ͱ͸ͳ͍͜ͱ͕໌Β͔ͩͬͨͨΊɺ͜ ͜ʹର͢ΔεέʔϥϏϦςΟ͸͍Βͳ͍ -> SSR Ͱ͋Δඞཁ͸ͳ͍
59. CASE STUDY: ͱ͋ΔECαΠτͷྫ - ΠϯσοΫεͷ଎౓͸ॏཁͰ͸ͳ͍͠ɺDynamic Rendering ͱ͔΋·͋· ͋ΊΜͲ͍ͷͰɺSSGͰ࡞Δํ͕ίετ͕௿͍ͱߟ͑ͨ - ·ͩϦϦʔε͍ͯ͠ͳ͍ஈ֊Ͱײ૝ड़΂ΔͷΞϨ͕ͩɺҰ෦ͷϥΠϒϥ ϦͷSSRͷઃఆ͕ΊΜͲ͔͚ͬͨͩ͘͞Ͱී௨ͷSPA։ൃͱൺ΂ͯͦ͜ ·ͰେมͰ͸ͳ͍ - Ή͠Ζ Next.js ͷΤίγεςϜʹ৐͔ͬΕΔͳͲͷར఺΋͋Δ
60. ͓ΘΓʹ
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62. Thank you for listening!!
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