公開日:

Authors
  • Name

リンク切れ一覧 ​

2026/4/14調査

posts/ 配下のMarkdown記事に含まれる外部URLをcurlで検証した結果、到達できなかったURLの一覧です。

  • 検査対象: posts/**/*.md 内の http(s):// URL（自ブログ blog.ideamans.com 自己参照と Facebook プラグインiframe、テンプレートプレースホルダは除外）
  • 検証方法: curl -L -I --max-time 15（HEADで不調のものはGETで再確認、接続失敗は1回リトライ）
  • 除外ステータス: 401 Unauthorized / 403 Forbidden（認証や制限により見えないだけの可能性が高いため）

合計: 109件

参照カラムは ファイルパス:行番号 を記載しています。

404 Not Found ​

(57件) ページが存在しません。

URL参照記事
https://developer.apple.com/documentation/safari-release-notes/safari-14-beta-release-notesposts/2020/06/safari14-webp.md:30
https://developers.google.com/speed/pagespeed/service/faq#clientipposts/2020/07/pagespeed-closed.md:42
https://example.com/article-1posts/2026/03/ranklet4-new-features.md:51
https://example.com/article-2posts/2026/03/ranklet4-new-features.md:59
https://github.com/ideamans/go-safe-backupposts/2025/06/202506.md:81
https://goodpatch.com/blog/dynamic-identity/posts/2018/09/ideamans-di.md:29
https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.ideamans.com%2Fabout%2Falogorithm%2Fposts/2017/07/start.md:105
https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.ideamans.com%2Fmt%2Fchangedraft%2Findex.htmlposts/2017/08/opensource-mtplugin201708.md:40
https://imagemagick.org/script/index.phpposts/2017/12/jpeg-compare.md:36
posts/2017/12/photoshop-qualitycheck-100-80.md:50
posts/2017/12/photoshop-web-publish.md:44
https://itunes.apple.com/de/app/assetizr/id1449126727?l=en&mt=12posts/2019/01/assetizr.md:36
https://katharin.blog.fc2.com/posts/2018/02/usercase01.md:38
posts/2018/02/usercase01.md:38
https://katharin.blog.fc2.com/blog-category-32.htmlposts/2018/02/usercase01.md:42
https://katharin.blog.fc2.com/blog-entry-330.htmlposts/2018/02/usercase01.md:42
posts/2018/02/usercase01.md:42
https://myami-clinic.jp/lp/wakiga/posts/2019/10/case-myami-clinic.md:80
https://netafull.net/blog/052237.htmlposts/2017/11/ranklet3.md:34
posts/2017/11/ranklet3.md:36
posts/2017/11/ranklet3.md:36
https://webmaster-ja.googleblog.com/2016/11/mobile-first-indexing.htmlposts/2018/03/googlemfi.md:44
https://webmaster-ja.googleblog.com/2018/01/using-page-speed-in-mobile-search.htmlposts/2019/08/casestudy-interg.md:94
posts/2018/03/googlemfi.md:48
posts/2018/11/speed-update-image-transfer.md:54
posts/2018/07/google-speed-update.md:56
https://webmaster-ja.googleblog.com/2018/03/rolling-out-mobile-first-indexing.htmlposts/2018/03/googlemfi.md:42
https://webmaster-ja.googleblog.com/2018/07/marking-HTTP-as-not-secure.htmlposts/2018/08/chrome68.md:42
https://webmaster-ja.googleblog.com/2018/11/pagespeed-insights-now-powered-by.htmlposts/2018/12/psi-lighthouse.md:41
https://webmasters.googleblog.com/2019/11/search-console-speed-report.html?fbclid=IwAR0lWHaKNFvP3lmoqqSco2l7vbEjWgPf-sL6pDADA6AKZt1c1S9blPtfsYsposts/2019/11/pagespeed-in-searchconsole.md:54
https://www.ideamans.com/_mautic/asset/3:jpgdietzipposts/2017/10/jpgdiet.md:65
https://www.ideamans.com/_mautic/asset/7:lightfile-pr-20180402posts/2018/04/pr-lightfile.md:74
https://www.ideamans.com/_mautic/form/34posts/2019/10/taxmonkey.md:48
posts/2019/10/taxmonkey.md:76
https://www.ideamans.com/_mautic/form/37posts/2020/03/pagespeed-lighthouse-6-draft.md:131
https://www.ideamans.com/_mautic/form/40posts/2021/02/web-vitals-and-cvr.md:66
posts/2021/02/web-vitals-and-cvr.md:237
https://www.ideamans.com/_samples/hybrid-include/posts/2021/06/hybrid-include.md:98
https://www.ideamans.com/_samples/hybrid-include/index-all.htmlposts/2021/06/hybrid-include.md:92
https://www.ideamans.com/_themes/webp-sample/before/posts/2019/02/webppagespeed-insights.md:50
https://www.ideamans.com/about/alogorithm/posts/2017/07/start.md:106
posts/2018/09/ideamans-di.md:32
https://www.ideamans.com/dr.capital/posts/2020/05/dr-capital-maker.md:61
https://www.ideamans.com/lighthouse/posts/2020/10/web-vitals-history-report.md:57
https://www.ideamans.com/mt/changedraft/index.htmlposts/2017/08/opensource-mtplugin201708.md:39
https://www.ideamans.com/release/20171013-1/posts/2017/08/opensource-mtplugin201708.md:30
https://www.ideamans.com/release/20171013-2/posts/2017/08/endofsupport-keitaipost.md:31
https://www.ideamans.com/release/20180831/posts/2018/09/mt7-keitaikit.md:36
https://www.ideamans.com/release/20181113/posts/2018/11/lightfile-for-dropbox-100users.md:37
posts/2018/11/lightfile-for-dropbox-100users.md:37
https://www.ideamans.com/release/20190308/posts/2019/03/png3.md:96
https://www.ideamans.com/release/20190821/posts/2019/08/pagespeed-rehearsal.md:41
https://www.ideamans.com/seminar/webimage/posts/2019/03/webp-img-stepup-seminar.md:42
https://www.ideamans.com/services/pagespeed/posts/2019/11/pagespeed-in-searchconsole.md:108
posts/2019/08/pagespeed-rehearsal.md:40
https://www.ideamans.com/services/pagespeed/estimation/posts/2019/08/pagespeed-rehearsal.md:120
https://www.ideamans.com/services/pagespeed/images/reports/thumbnail/index.pngposts/2019/08/pagespeed-rehearsal.md:38
https://www.ideamans.com/services/pagespeed/inquiry/posts/2019/08/pagespeed-rehearsal.md:119
https://www.imagemagick.org/script/index.phpposts/2018/06/lighthouse-performance.md:48
https://www.japan-it.jp/haru/posts/2018/05/japan-it-week-haru.md:29
posts/2018/05/japan-it-week-haru.md:30
https://www.rakuten.co.jp/b-cat/posts/2019/02/30011webp.md:271
https://www.rakuten.ne.jp/gold/i-office1/sp/top.htmlposts/2019/02/30011webp.md:136
https://www.rizap.jp/qa/45.htmlposts/2018/05/speedup-like-diet.md:57
posts/2018/05/speedup-like-diet.md:57
https://www.sem-r.com/google-2010/20180702025520.htmlposts/2018/07/google-speed-update.md:60
https://www.similar-web.jp/funs.phpposts/2018/06/comparison2018.md:30
https://www.sixapart.jp/movabletype/solutions/keitaikit.htmlposts/2018/09/mt7-keitaikit.md:45
https://www.slideshare.net/kohsakusaito/rancher-meetup-sapporo-2posts/2017/10/cmsmix-sapporo-vol3-drupal.md:38
https://www.slideshare.net/slideshow/embed_code/key/F4ScTCPeYJd0cgposts/2017/10/cmsmix-sapporo-vol3-drupal.md:36
https://www.tsuhanshimbun.com/products/downloads_detail.php?product_id=4466&_ssd=1posts/2019/04/300-ec-lightfile-201904.md:82
posts/2019/04/ec-pagespeed-insights-deviations.md:297
posts/2019/02/30011webp.md:44
https://www.tsuhanshimbun.com/products/downloads_detail.php?product_id=7572posts/2025/04/202503.md:51
https://www.zakzak.co.jp/sports/sports.htmposts/2019/02/news-sites-webp.md:178

410 Gone ​

(3件) 恒久的に削除されています。

URL参照記事
https://webdev.imgix.net/cls/layout-shift-3.pngposts/2020/12/pagespeed-insight-core-web-vitals-field-data.md:144
https://www.fxsitecompat.com/ja/docs/2018/webp-image-support-has-been-added/posts/2018/11/201811-webp.md:49
https://www.microsoft.com/ja-jp/p/assetizr/9pj6j7v92n8nposts/2019/01/assetizr.md:36

接続失敗（DNS解決不可 / TLS失敗 / ホスト到達不能） ​

(44件) ドメイン自体が消滅している可能性が高いです。

URL参照記事
https://apache2.ideamans.com/pagespeed-closed-example/posts/2020/07/pagespeed-closed.md:70
https://blog.goo.ne.jp/ks-pressposts/2019/02/news-sites-webp.md:138
https://dropbox.lightfile.net/posts/2018/11/google-squoosh.md:78
posts/2018/11/google-squoosh.md:80
posts/2018/11/google-squoosh.md:82
posts/2018/11/google-squoosh.md:82
posts/2018/11/lightfile-for-dropbox-100users.md:36
posts/2018/11/lightfile-for-dropbox-100users.md:36
posts/2018/10/cloudnative-serverless.md:47
posts/2018/09/lightfile-dropbox.md:35
posts/2018/09/lightfile-dropbox.md:36
https://drupal-summit.tokyo/posts/2017/10/drupalsummit-2017.md:33
posts/2017/10/drupalsummit-2017.md:33
https://flexslider.woothemes.com/posts/2020/09/slider-core-web-vitals.md:119
https://fwww-lab.com/posts/2017/11/rankingtool2017.md:53
https://havelog.ayumusato.com/develop/performance/e744-performance_metrics.htmlposts/2019/03/web-speed-is-firstview.md:58
posts/2019/04/inside-pagespeed-insights.md:132
https://implet.net/posts/2017/07/start.md:113
posts/2017/07/start.md:115
posts/2017/07/start.md:117
posts/2017/07/start.md:117
https://jp.limelight.com/posts/2018/07/google-speed-update.md:83
https://jp.mautic.org/posts/2017/10/cmsmix-sapporo-vol3-drupal.md:31
https://jp.techcrunch.com/posts/2017/11/devto-image-optimize.md:49
https://jp.techcrunch.com/2012/06/01/20120531goodbye-photoshop-hello-cloudinary/posts/2017/11/devto-image-optimize.md:50
https://letsencrypt.jp/usage/posts/2018/07/https3.md:61
https://mt.ideamans.com/assets/Smush-Guide-to-Image-formates-JP-fs8.pngposts/2019/02/-smush-pro-guide-to-image-formats.md:47
https://mtddc2018.mt-tokyo.net/posts/2018/11/201811.md:30
posts/2018/10/mtddc-meetup-tokyo-2018.md:35
posts/2018/10/mtddc-meetup-tokyo-2018.md:35
posts/2018/12/2018.md:90
https://netaful.net/posts/2020/05/netaful-ranklet.md:42
https://php.simulate.site/pagespeed-closed/digest-document-write.phpposts/2020/07/pagespeed-closed.md:44
https://php.simulate.site/pagespeed-closed/htaccess-document-write.phpposts/2020/07/pagespeed-closed.md:59
https://php.simulate.site/png-alpha-mask-saving/posts/2021/02/png-alpha-saving.md:56
posts/2021/02/png-alpha-saving.md:70
posts/2021/02/png-alpha-saving.md:157
https://php.simulate.site/webp-params-nav/default/posts/2020/07/webp-params-nav.md:36
https://php.simulate.site/webp-params-nav/default/#case-cwebp_quality_highposts/2020/08/webp-params-2020.md:84
https://php.simulate.site/webp-params-nav/default/?source=blue-and-red.png&suite=cwebp-standard#case-cwebp_qualityposts/2020/08/webp-params-2020.md:128
https://php.simulate.site/webp-params-nav/default/?source=blue-and-red.png&suite=cwebp-standard#case-cwebp_sharp_yuvposts/2020/08/webp-params-2020.md:138
https://php.simulate.site/webp-params-nav/default/?source=landscape01-adobe-rgb.jpg&suite=cwebp-standardposts/2020/08/webp-params-2020.md:102
https://php.simulate.site/webp-params-nav/default/?source=landscape01-adobe-rgb.jpg&suite=cwebp-standard#case-cwebp_metadataposts/2020/08/webp-params-2020.md:108
https://php.simulate.site/webp-params-nav/default/?source=landscape03-adobe-rgb.png&suite=cwebp-standardposts/2020/08/webp-params-2020.md:116
https://php.simulate.site/webp-params-nav/default/?source=typography01.jpg&suite=cwebp-standard#case-cwebp_sharp_yuvposts/2020/08/webp-params-2020.md:144
https://sanyo-i.jp/s/posts/2019/02/30011webp.md:208
https://simulate.site/cheatspeed-insights/posts/2020/06/cheatspeed-insights.md:65
posts/2020/06/cheatspeed-insights.md:76
posts/2020/06/cheatspeed-insights.md:86
posts/2020/06/cheatspeed-insights.md:100
https://syncer.jp/echojsposts/2018/06/lighthouse-performance.md:51
https://tech.recruit-mp.co.jp/front-end/post-17429/posts/2019/03/web-speed-is-firstview.md:119
posts/2019/04/inside-pagespeed-insights.md:183
https://telegraphics.com.au/sw/product/WebPFormatposts/2018/04/webp.md:80
https://tophatenar.com/posts/2018/07/webssl.md:48
posts/2018/06/lighthouse-mobile-friendly.md:46
https://uxmilk.jp/54114posts/2020/09/slider-core-web-vitals.md:46
posts/2020/09/slider-core-web-vitals.md:444
https://www.bangarrow.com/posts/2018/08/cloudgarage-meetup-in-yokohama.md:72
https://www.cloud-japan.jp/Home_Haru/posts/2018/05/japan-it-week-haru.md:41
https://www.daily-3.com/smp/posts/2019/04/ec-pagespeed-insights-deviations.md:278
https://www.keitaikit.jp/posts/2018/09/mt7-keitaikit.md:45
https://www.news24.jp/posts/2019/02/news-sites-webp.md:274
https://www.softbanktech.jp/service/list/fontplus/posts/2018/10/google-fonts-japanese.md:55
https://www.soleil.company/posts/2019/02/30011webp.md:172
https://www.thetennisdaily.jp/posts/2018/12/lightfile-info.md:44
https://www.tokyoinfo.com/shop/use/lunch/posts/2018/08/tokyo-station-lunch.md:97
https://www.web-mo.jp/Home_Haru/posts/2018/05/japan-it-week-haru.md:36

5xx サーバーエラー ​

(1件) 一時的なサーバー側エラーの可能性もありますが、恒常的に返る場合はリンク切れと判断できます。

URL参照記事
https://license.ideamans.com/dashboardposts/2019/04/300-ec-lightfile-201904.md:40

429 Too Many Requests ​

(2件) レート制限により応答しません。一時的な可能性があります。

URL参照記事
https://trends.google.co.jp/trends/explore?geo=JP&q=lazyload,遅延読み込みposts/2018/11/speed-update-image-transfer.md:87
https://venturebeat.com/2019/01/29/mozilla-firefox-65/posts/2019/01/firefox-quantum-webp.md:94

406 Not Acceptable ​

(1件) User-Agentやヘッダー次第で見られない可能性があります。

URL参照記事
https://www.cdnetworks.co.jp/about/posts/2018/11/cdn-costdown.md:48

202 Accepted ​

(1件) 正常応答ではなく要確認です。

URL参照記事
https://www.amazon.co.jp/posts/2026/04/assist-words-blog.md:84
posts/2020/03/pagespeed-lighthouse-6-draft.md:62