Hi Parsoid developers, I have compared Wikipedia HTML and Parsoid HTML (same title and oldid) for 500 random samples. And I found some bug examples and difference patterns that may help you. We also expect the bugs to be fixed. Thanks! Below are the examples: Bug examples: 1. In http://parsoid-lb.eqiad.wikimedia.org/enwiki/1913_Gettysburg_reunion?oldid=…, References 18 is “(Pennsylvania Department of Health). http://books.google.com/books?id=swkTAAAAYAAJ&pg=PA72PA72. Retrieved 2011-02-06.”. But in http://en.wikipedia.org/w/index.php?title=1913_Gettysburg_reunion&oldid…1478, it’s “(Pennsylvania Department of Health). Retrieved 2011-02-06.” 2. The first external link in http://en.wikipedia.org/w/index.php?title=...From_the_Hungry_i&oldid=55… “The Kingston Trio Liner Notes album entry.”, but in http://parsoid-lb.eqiad.wikimedia.org/enwiki/...From_the_Hungry_i?oldid=555… “[ http://www.lazyka.com/linernotes/trio_01(Guard,Rynolds,Shane)/recrdngs/LP_T…: The Kingston Trio Liner Notes album entry.]”. It’s an obvious bug. 3. In http://en.wikipedia.org/w/index.php?title=1973_CARIFTA_Games&oldid=4733…0600, every table have title line: “Event Gold Silver Bronze”. But in http://parsoid-lb.eqiad.wikimedia.org/enwiki/1973_CARIFTA_Games?oldid=47338…, the table title line disappears. 4. In http://en.wikipedia.org/w/index.php?title=Airdisco_Phi-Phi&oldid=551648…8808, there are a table on the right: “Phi-Phi … Number built 1”. But it disappers in http://parsoid-lb.eqiad.wikimedia.org/enwiki/Airdisco_Phi-Phi?oldid=5516488… . 5. The figcaption not displays in wikipedia, but displays in parsoid. Example 1: see “Breg , the old part of Novo Mesto along the Krka River” in http://parsoid-lb.eqiad.wikimedia.org/enwiki/%C5%A0entjo%C5%A1t,_Novo_Mesto…, it not exist in http://en.wikipedia.org/w/index.php?title=%C5%A0entjo%C5%A1t,_Novo_Mesto&am…2305. Example 2: “T-6 Texan IIs over Columbus Mississippi” appears twice in http://parsoid-lb.eqiad.wikimedia.org/enwiki/14th_Operations_Group?oldid=57… one time in http://en.wikipedia.org/w/index.php?title=14th_Operations_Group&oldid=5… . 6. The link “[1] [2] ...” in text or references disappears in Parsoid HTML. Example1: see “[1] [2] [3] [4]” in http://en.wikipedia.org/w/index.php?title=1982_PBA_Open_Conference&oldi…1559, it disappears in http://parsoid-lb.eqiad.wikimedia.org/enwiki/1982_PBA_Open_Conference?oldid…. Example2: “[1]” in http://en.wikipedia.org/w/index.php?title=2008%E2%80%9309_Barnsley_F.C._sea…5626, disappears in http://parsoid-lb.eqiad.wikimedia.org/enwiki/2008%E2%80%9309_Barnsley_F.C._… . Other different patterns with examples: 1. http://en.wikipedia.org/w/index.php?title=$pent&oldid=535219749 have the table of contents. But http://parsoid-lb.eqiad.wikimedia.org/enwiki/$pent?oldid=535219749 hasn’t. 2. http://en.wikipedia.org/w/index.php?title=$pent&oldid=535219749 have “[edit]” after each section to click. But http://parsoid-lb.eqiad.wikimedia.org/enwiki/$pent?oldid=535219749 hasn’t. 3. The sign “^ ” in references of http://en.wikipedia.org/w/index.php?title=$pent&oldid=535219749 is replaced with “↑” in http://parsoid-lb.eqiad.wikimedia.org/enwiki/$pent?oldid=535219749. 4. The superscript “a b c d” etc in references of http://en.wikipedia.org/w/index.php?title=%C3%87a_plane_pour_moi&oldid=… replaced with “{num}.0 {num}.1 {num}.2 {num}.3” etc in http://parsoid-lb.eqiad.wikimedia.org/enwiki/%C3%87a_plane_pour_moi?oldid=5… 5. The voice playing component may be different between http://en.wikipedia.org/w/index.php?title=%C3%89tincelles_(Moszkowski)&… Problems playing this file?) and http://parsoid-lb.eqiad.wikimedia.org/enwiki/%C3%89tincelles_(Moszkowski)?o… . -- Bin Li