But it is not just the green-and-white wall that has been impenetrable on SPFL Premiership duty that has given manager Neil Lennon a rightful sense of satisfaction.
While his back four and keeper Fraser Forster have written their names in the history books, their remarkable shut-out record was only brought to a halt last weekend as Aberdeen ended the Hoops' double dreams, the Parkhead forward line has played its part in taking the champions to the brink of three-in-a-row.
Lennon's men have averaged more than two goals a game in Scotland's top flight, the 54 they have netted so far having fired them 21 points clear of the Dons as they have breezed past everything in their path to title glory.
Celtic's cruise to the Premiership crown hasn't stopped Lennon looking for improvements, however.
His last piece of business in the January transfer window saw Leigh Griffiths complete his switch from Wolves to Parkhead with just hours to spare.
Despite talk of £6million strikers arriving at the club a few weeks ago, there was no major money laid out by the champions to bolster their ranks.
Attentions will soon turn to the Champions League once again as Lennon looks to lead his side back to European football's top table.
The Parkhead manager certainly has plenty of bodies at his disposal but is there enough firepower within his ranks?
Here, former Hoops strike star Frank McAvennie gives SportTimes the rundown on Celtic's attacking arsenal.
Macca says: "Kris has outshone everyone. Even if you take away his 22 goals, he has still been excellent for Celtic this season. To get the number of goals he has is terrific and hopefully there are many more to come from him. He hasn't signed his new contract yet and while I am sure there will be interest in him, Lenny will want to do all he can to keep him at the club."
Macca says: "I think Griffiths will compliment Stokes, if Lenny decides to go with the two of them. He has got ? goals so far this season and I am sure he would have been looking for a few more at this stage. I would like to see someone of Gary Hooper's calibre coming in, someone who is an out-and-out striker. That would be a good addition to what they have in place and combine well with the likes of Stokes."
Macca says: "Some people come in and fit in straight away and I think Griffiths will be one of them. He will do a good job, but we don't know if he will be a proven goalscorer. I know he scored a lot of goals at Hibs and while there are a lot of chances created for you at Celtic, he isn't really a poacher. I think he could be a good partner for a poacher-type striker."
Macca says: "I don't think Pukki and Balde have settled in yet, but it is up to the manager how long he gives them. They have had a bit of time now, but they haven't had a run of games. That might happen once Celtic have won the league.
"Coming to a big club like Celtic isn't easy. A lot of players do it and it just doesn't work out. I don't know them as people but you would have hoped that they would be settled by now.
"If it was me, I would have wanted to have been a permanent fixture in the team by now.
"I think there is a lot that has to be worked on with the two of them. I see them in games and they look out of sorts."
Macca says: "I think he will be gone in the summer, it doesn't look like he will sign his new deal. He is more of a midfield player these days anyway, coming in from wide rather than playing through the middle. I don't think he will be here next season."
APPEARANCES: 3 / 14
GOALS: 0 / 8
Macca says: "I like Tony as a striker and he has scored a few goals since he went on loan to Belgium. Whether he comes back, I don't know. We don't know what the situation is between him and Neil"